RFP_N6883618R0003_TE_12.xlsx
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- Solicitation number
- N6883618R0003
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RFP_N6883618R0003_TE_12.xlsx
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YTB 831 SOW
| TECHNICAL EXHIBIT 12 | |
| Drydocking Availability for YTB 831 (FY19) | |
| SCOPE OF WORK (SOW), FOR OUTSIDE SHIPYARD SUPPORT | |
| Number | Description |
| 2019-00 | Tow vessel from point to point |
| 00.1 | a) Location of Work: |
1) From US Naval Base, Guantanamo Bay, Cuba to approved dry-dock facility and return.
b) Identification:
1) YTB-831 (Dekanawida)
c) References:
1) Not Applicable
| 00.1 | Task Requirements |
| 00.1.1 | Provide a suitable vessel to provide towing services from U.S. Naval Station, Guantanamo Bay, Cuba to selected Dry-docking facility. |
| 00.1.2 | The selected Towing Company shall provide sufficient towing equipment services, (Towing Gears, Towing Light, Towing Peanuts, and Batteries) and manpower to safely complete all aspects of the safe rigging for tow to and from accepted dry dock facility, and derigging after return. |
| 00.1.3 | Towing of the vessel must be accomplished in accordance with all applicable US Coast Guard Regulations. |
| 00.1.4 | Note: Towing Preparation accomplished by the Contractor for GTMO Port Ops,shall be inspected and accepted by Towing Company. |
| 2019-01 | Dry Docking of the Craft |
| 01.1 | a) Location of Work: |
1) Dry dock Facility
b) Identification:
1) To Be Determine
c) References:
1) NAVSHIPS Drawing No. 845-4563152 Guidance Docking Plan
| 01.2 | Docking Requirements |
| 01.2.1 | Provide suitable dry docking facility to dry dock the vessel for under water repairs, sand blasting, preservation efforts. |
| 02.1.2 | Note: No painting or preservation efforts will be applied in any area where dust/dirt can be introduced into the efforts. |
| 02.1.3 | Properly dock the vessel IAW above reference “Docking Plan” so as to eliminate any undue stress or strain on the hull. |
| 02.1.4 | Docking shall avoid placing blocks in a way of any below water appendages, sea chest strainers, discharges, submarine rubber, and/or zinc anodes. |
| 02.1.5 | The vessel shall be fleeted on the blocks in order to ensure areas covered by docking blocks receive repairs, preservation, and paint coverage. Care must be taken to ensure all blocking will be equally distributed in strengthened areas and not cover or impede any below water appendages, zinc anodes, screens, or discharges, and submarine rubber. |
| 01.3 | Dry Docking |
| 01.3.1 | Conforming to the requirements as stated above references. dry dock the vessel for under water repairs, sandblasting/water blasting, preservation, painting, and all interior/exterior work which would require dry docking to safely complete. |
| 01.3.2 | Dry dock vessel in accordance with reference drawing. |
| 01.3.3 | Re-position vessel (fleet), to insure 100% repairs, cleaning, preservation, and painting. |
| 01.4 | Dry Docking Report |
| 01.4.1 | Verify and record all information as required for docking block locations to ensure docking blocks will be equally distributed in strengthened areas IAW above references. |
| 01.4.2 | Upon completion of this verification, provide a visual inspection report in writing to the On-Site Representative. |
| 01.5 | Cleaning of Underwater Hull |
| 01.5.1 | Immediately after dry-docking, water blast underwater surfaces up to the entire underwater area up to and including the gunnels. This includes all vertical and horizontal areas. |
| 01.5.2 | Remove all marine growth from the shafting, propeller, & rudder by water blasting. |
| Note: Final cleaning of shafting, propeller, & rudder will be accomplished on each individual tasks. | |
| 2019-02 | Fuel Removal; Port and Starboard, No. 2 Fuel Tank |
| 02.1 | Location of Work: |
1. Port and Stbd. No. 2 Fuel Tanks
a) Day Tank 812-Gls Capacity/Frame -1-22-0 (FR 22-23)
b) Tank No. 2 Port 5,300-Gls Capacity - Frame 2-22-2 (FR 22-35)
c) Tank No. 2 Stbd 5,300-Gls Capacity - Frame 2-22-1 (FR 22-35)
| 02.1.1 | Inventory all fuel to be removed from the vessel and furnish the On-Site Representative a written record of inventory. |
| 02.1.2 | Pump out/remove fuel from each tank and stow in clean approved containers IAW local regulations ashore for later return to the vessel. approximately more or less11,000 Gallons of Fuel) |
| 02.1.3 | Provide fuel truck services for the removal and return of fuel from the tanks. |
| 02.1.4 | Selected shipyard will provide appropriate fuel storage until completion of boat repair. |
| 02.1.5 | Note: Where required by local regulations, provide oil boom services around the periphery of the craft prior to transfer of fuel from craft to fuel truck or receptacle. |
| 02.1.6 | Completely drain all residuals from the tanks and ensure all tanks are clean and adequately vented to atmosphere. Dispose of any/all residuals IAW local regulations. |
| 02.1.7 | Upon completion cleaning interior tank surfaces (Hull, bulkhead and overhead) inspect each tank for possible loosed paint. |
| 02.1.8 | Note: For purposes of this estimate, allow for a combined total of 96 Sq. Ft. of loosed paint to be accomplished in these tank preservation. Any additional repairs beyond this quantity will be addressed SEPCOR to On-Site Representative. |
| 02.1.9 | All loosed paint shall cleaned to bare metal prior to prime paint in accordance with existing designed characteristics. |
| 02.1.10 | Selected shipyard will be responsible for any incidental oil spill during liquid transfer. |
| 02.1.11 | All equipment necessary for liquid transfer and disposal shall be provided by the shipyard. |
| 02.1.12 | Note: Clean each fuel tank interior surfaces, and including piping penetrating in the tank prior to return fuel. |
| 2019-03 | Tank Cleaning/Inspection, Repair and Preservation |
| 03.1 | Location of Work: |
1. Fuel Tanks
a) Tank No. 1 Port 4,388-Gls Capacity, Location 3-12-1-F Converted to Ballast Tank
b) Tank No. 1 Stbd 4,388-Gls Capacity, Location 3-12-F-1 Converted to Ballast Tank
c) Tank No. 2 Port 5,280-Gls Capacity, Location 3-22--1-F Service Main Fuel Tank
d) Tank No. 2 Stbd 7,910-Gls Capacity, Location 3-22-2-F Service Main Fuel Tank
e) Tank No. 3 Port 3,584-Gls Capacity, Location 2-50-1-F Converted to Ballast Tank
f) Tank No. 3 Stbd 3,584-Gls Capacity, Location 2-50-2-F Converted to Ballast Tank
2. Ballast/Void Tanks
a) Fwd 2,900-Gls Capacity, Location 3-5--0-V
b) Aft Port 1,800-Gls Capacity, Location 3-55-2-V
c) Aft Stbd 1,800-Gls Capacity, Location 3-55-1-V
3. Fore Peak Tank - 2,068 Gls. Capacity, Location 3-0-0-V
4. Chain Locker, Dry, Location 2-3-0-V
5. Void Tank, Dry, Location 3-44-0-V (Lazarete Compartment)
6. Dirty Oil Tank, 305 Gls. Capacity, Location 3-44-0-V (Shaft Compartment)
| 03.2 | Gas Freeing Services |
| 03.2.1 | Task Requirement |
| 03.2.1.1 | Gas free tanks for entry and cleaning to include all chain locker, engine room bilges, machinery spaces, steering gear room, half-pipe fenders, and rudder, certify with Shipyard Marine Chemist Certificate or Gas Free Engineer. Where hot work is to be accomplished, Gas free those areas and any adjoin area's) to a gas free level which will safely allow/permit hot work. All bids should include all gas free services throughout the vessel where required for the entire yard work cycle. |
| 03.2.1.2 | Entry by any person or persons into confined spaces is prohibited until such spaces have been inspected, tested, and certified safe for entry and or work. |
| 03.2.1.3 | Upon completion of testing, a gas free certificate and test log shall be issued which indicates the conditions required for entry and/or work existing at the time of the certificate was issued. |
| 03.2.1.4 | Test results shall be satisfactory before a certificate for entry or work is issued. Approved Gas Free Certificate shall be posted prior to personnel entry or commencement of any work. |
| 03.2.1.5 | When testing indicates a hazardous condition exists, stop all work and remove personnel from the space. |
| 03.2.1.6 | Stop entry and work until all unsafe conditions have been corrected or controlled and the space has been retested and recertified. |
| 03.2.1.10 | When materials and conditions within the space introduce flammable, toxicants or unsafe oxygen levels, identify and remove the cause or source of the contamination by cleaning, flushing and draining, tagging out, isolating or plugging and ventilating before entry of work. Space must be recertified gas free and safe for anticipated work. |
| 03.2.1.11 | Adequate ventilation shall be maintained for the duration of the work. |
| 03.2.1.13 | The shipyard Gas Free Engineer shall personally specify the PPE's and emergency rescue provisions necessary for safe entry and work. |
| 03.2.1.14 | The atmosphere shall be periodically or continuously tested and maintain safe condition as directed by the Gas Free Engineer during hot work and cleaning operations such as sludge removal that has the potential for generating toxic fumes. |
| 03.2.1.15 | Prior to any hot work on rudder, proper precautions and procedures must be followed as the rudders may contain sufficient amount of metal conditioning compound to cause an explosion or fire. |
| 03.2.1.16 | Gas free services shall be provided by the selected shipyard and will remain active throughout the craft until completion of all efforts requiring gas free services. |
| 03.3 | Tank Cleaning |
| 03.3.1 | Task Requirement |
| 03.3.1.1 | Remove bolted access plates on each tanks listed in this solicitation to gain safe entry. |
| 03.3.1.2 | Open each tank and clean free of remaining fuel, oil, water, sludge and any other foreign matter, properly dispose of same IAW local regulations. |
| 03.3.1.3 | Pressure wash entire interior of all tanks including all vertical, horizontal surfaces, framing and piping, with lint free rags, properly dispose of same IAW local regulations. |
| 03.3.1.4 | Hold tanks open for inspection and approval from the On-Site Representative. |
| 03.3.1.5 | Close/secure tanks with new tank access covers, & securing hardware including mounting/retainer ring, stainless steel counter sink screws (on all the main deck tank covers) and gasket material after completion of repair work and satisfactory inspections by On-Site Representative. |
| 03.3.1.6 | Provide temporary lighting and ventilation into all tanks as required. Ensure all lighting/ventilation is explosive proof. |
| 03.3.1.7 | Perform these tasks in coordination/succession with the gas freeing efforts. |
| 03.3.1.8 | Note: Interior tank cleaning and preservation shall be satisfactory inspected/approved by On Site Representative for acceptance. |
| 03.4 | Tank Cleaning Inspection/Repair and Test |
| 03.4.1 | Task Requirement |
| 03.4.1.1 | Accomplish a visual inspection of tank listed in 03.1 for structural damage and deterioration, piping, structural members and manhole cover upon completion of primer coat. Including sounding tubes, tank vents/overflows . Accomplish this effort immediately after successful gas freeing phase of tanks and craft for safe entry and hot work. |
| 03.4.1.2 | Inspect tanks external/internal physical condition visually Identify any cracks, pitting, and other defects. Prepare/submit condition report to On-Site Representative. |
| 03.4.1.3 | All replacement materials shall be blasted to white metal and appropriate pretreatment/preservation applied prior to installation on the tanks. |
| 03.4.1.4 | All replacement materials must be approved by the On-Site Representative prior to application. |
| 03.4.1.5 | Replacement plates, all welded and disturbed areas must be preserved IAW NSTM 631 painting schedule. |
| 03.4.1.6 | Note: For purposes of this estimate, allow for a combined total of 72 Sq. Ft. of hull plate and bulkhead plate replacement, 10 linear feet of defective weld seams and butts (in addition to tank covers) to be accomplished in these tank repairs. Any additional repairs beyond this quantity will be addressed SEPCOR to On-Site Representative. |
| 03.4.1.7 | Note: Accomplish repair of vertical ladder of each tank as required. |
| 03.4.1.8 | Perform these tasks in coordination/succession with the gas freeing efforts. |
| 03.5 | Piping Inspection |
| 03.5.1 | Inspect all internal piping in each tank for defects such as but not limited to: loose piping run connections, mounting brackets, and visible deterioration of piping. Check all bulkhead penetrations. Prepare/submit condition report to On-Site Representative. |
| 03.5.2 | Note: Perform these tasks in coordination/succession with the gas freeing efforts. |
| 03.5.3 | Issues which may be found during this phase which exceed the bid quantities listed in the Note at section 03.6.2 will be addressed SEPCOR (Separate Correspondence) to On-Site Representative. |
| 03.6 | Piping Repairs |
| 03.6.1 | Repair/replace pipe, pipe hangers, mounting brackets, fastening devices, air vent and other associated components, if found defective/deteriorated. |
| 03.6.2 | Note: For purposes of this estimate, allow for a combined 20-ft linear of pipe to be accomplished in these tank piping repairs. Any additional repairs beyond this quantity will be addressed SEPCOR to On-Site Representative. |
| 03.6.3 | All replacement materials shall be blasted to white metal, cleaned, and appropriate pretreatment/preservation applied prior to installation on the tanks. |
| 03.7 | Tank testing |
| 03.7.1 | Perform testing efforts after the tank inspections and repairs has been satisfactory accomplished and completed. |
| 03.7.2 | Blank-off all piping and conduct pneumatic test of two (2) PSI of each tank with the presence of the On-Site Representative. An appropriate water column shall be used to conduct air test. |
| 03.7.3 | Test pressure must be maintained a minimum of ten (10) minutes to ensure each tank remains leak free and acceptable. |
| 03.7.4 | Subsequent test shall be conducted to prove tanks and associated piping leak free. |
| 03.7.5 | Upon completion of satisfactory test, remove blanks and leave fuel piping and tanks ready for service |
| 03.7.6 | Prior to return of fuels ensure each tank(s) and associated piping are clean and free of dust/dirt and foreign matter. |
| 03.7.7 | Return fuels and water after undocking of the craft and authorized by the On-Site Representative. |
| 03.7.8 | All testing efforts shall be witnessed and accepted by On-Site Representative. |
| 03.7.9 | Evident leakage shall be located and eliminated by repairs. |
| 03.7.10 | Note: Should these leaks be caused by shipyard repairs they will be corrected at no additional cost. |
| 03.7.11 | Repair(s) identified in excess of the submitted 20-sf estimation and are not caused by the shipyard will be subjected/addressed SEPCOR (Separate Correspondence) to On-Site Representative. |
| 03.7.12 | Note: Provide three legible copies of air test results and certificate of completion to On Site Representative. |
| 2019-04 | Ballast Tank, Forepeak Tank, Fuel Tank and Chain Locker; Clean, Inspect, Repair and Preserve |
| 04.1 | P/S No. 1 Fuel Tanks; Clean, Inspect, Repair and Preserve (Converted to Ballast Tank) |
| 04.1.1 | Pump out contaminated fresh water approximately more or less 8,776 gallons to facilitate cleaning, inspections and preservations. |
| 04.1.2 | Selected shipyard shall be responsible for any incidental oil spill during liquid transfer. |
| 04.1.3 | All equipment necessary for liquid transfer and disposal shall be provided by the shipyard. |
| 04.1.4 | Selected shipyard shall be responsible for filling fresh water to the ballast tanks. |
| 04.1.5 | Upon completion of water removal open and ventilate each tank prior to gas free. |
| 04.1.6 | Open each tank and clean free of remaining water, sludge and any other foreign matter, properly dispose of same IAW local regulations. |
| 04.1.7 | Provide temporary lighting and ventilation into all tanks as required. Ensure all lighting/ventilation is explosive proof. |
| 04.1.8 | Perform these tasks in coordination/succession with the gas freeing efforts. |
| 04.1.9 | Upon completion of dewatering clean metal surfaces by degreasing compound prior to mechanical clean or jet blasting. |
| 04.1.10 | Clean to a gas free condition the fuel oil tanks including piping terminating in the tanks. |
| 04.1.11 | Install steel blanks with gaskets or expandable plugs on open ends of piping in the tanks prior to jet blast. |
| 04.1.12 | Jet blast tank interior surfaces (hull, bulkhead and overhead) to white metal in entirety in accordance with reference drawing. Ensure blasted areas shall not be allowed to stand overnight without application of paint coating. |
| 04.1.13 | Ensure metal surfaces, and including piping's shall be cleaned with degreasing compound prior to application of paint. |
| 04.1.14 | Apply paint only to a clean dry surface, free of oil, corrosion, dirt or other foreign matter. Ensure metal surfaces shall be cleaned with degreasing compound prior to paint. |
| 04.1.15 | Apply paint in accordance with and under weather conditions as recommended by the paint manufacturer and U.S. Navy painting schedule. |
| 04.1.16 | Note: All corners, edges, and underneath surfaces shall be stripped paint by using paint brush. |
| 04.1.17 | Extent paint coating drying time as required by weather conditions. |
| 04.1.18 | Apply Paint entire tanks surfaces with one coat MIL-PRF-23236, Type VII, Class 7/18, 20-30 MILS Thickness. |
| 04.1.19 | Apply One Stripe Coat MILL-PRF-23236, Type VII Class 7/18, 10-15 MILS Thickness. |
| 04.1.20 | Upon completion of preservation hold tanks open for inspection by On-Site Representative. |
| 04.1.21 | Remove steel blanks or expandable plugs previously installed at the open ends of piping in the tanks prior to close the tank.. |
| 04.1.22 | Provide three legible copies of (DFT) Dry Film Thickness results and certificate of completion to On Site Representative. |
| 04.1.23 | Note: Interior tank cleaning and preservation shall be satisfactory inspected/approved by On Site Representative. |
| 04.2 | P/S No. 3 Fuel Tanks; Clean, Inspect, Repair and Preserve (Converted to Ballast Tank) |
| 04.2.1 | Pump out contaminated fresh water approximately more or less 7,168 gallons to facilitate cleaning, inspections and preservations. |
| 04.2.2 | Selected shipyard shall be responsible for any incidental oil spill during liquid transfer. |
| 04.2.3 | All equipment necessary for liquid transfer and disposal shall be provided by the shipyard. |
| 04.2.4 | Selected shipyard shall be responsible for filling fresh water to the ballast tanks. |
| 04.2.5 | Upon completion of water removal open and ventilate each tank prior to gas free. |
| 04.2.6 | Open each tank and clean free of remaining water, sludge and any other foreign matter, properly dispose of same IAW local regulations. |
| 04.2.7 | Provide temporary lighting and ventilation into all tanks as required. Ensure all lighting/ventilation is explosive proof. |
| 04.2.8 | Perform these tasks in coordination/succession with the gas freeing efforts. |
| 04.2.9 | Upon completion of dewatering clean metal surfaces by degreasing compound prior to mechanical clean or jet blasting. |
| 04.2.10 | Clean to a gas free condition the fuel oil tanks including piping terminating in the tanks. |
| 04.2.11 | Install steel blanks with gaskets or expandable plugs on open ends of piping in the tanks prior to jet blast. |
| 04.2.12 | Jet blast tank interior surfaces (hull, bulkhead and overhead) to white metal in entirety in accordance with reference drawing. Ensure blasted areas shall not be allowed to stand overnight without application of paint coating. |
| 04.2.13 | Ensure metal surfaces, and including piping's shall be cleaned with degreasing compound prior to application of paint. |
| 04.2.14 | Apply paint only to a clean dry surface, free of oil, corrosion, dirt or other foreign matter. Ensure metal surfaces shall be cleaned with degreasing compound prior to paint. |
| 04.2.15 | Apply paint in accordance with and under weather conditions as recommended by the paint manufacturer and U.S. Navy painting schedule. |
| 04.2.16 | Note: All corners, edges, and underneath surfaces shall be stripped paint by using paint brush. |
| 04.2.17 | Extent paint coating drying time as required by weather conditions. |
| 04.2.18 | Apply Paint entire tanks surfaces with one coat MIL-PRF-23236, Type VII, Class 7/18, 20-30 MILS Thickness. |
| 04.2.19 | Apply One Stripe Coat MILL-PRF-23236, Type VII Class 7/18, 10-15 MILS Thickness. |
| 04.2.20 | Upon completion of preservation hold tanks open for inspection by On-Site Representative. |
| 04.2.21 | Remove steel blanks or expandable plugs previously installed at the open ends of piping in the tanks prior to close the tank.. |
| 04.2.22 | Provide three legible copies of (DFT) Dry Film Thickness results and certificate of completion to On Site Representative. |
| 04.2.23 | Note: Interior tank cleaning and preservation shall be satisfactory inspected/approved by On Site Representative. |
| 04.3 | Fwd. Ballast Tank; Clean, Inspect, Repair and Preserve |
| 04.3.1 | Pump out contaminated fresh water approximately more or less 2,900 gallons to facilitate cleaning, inspections and preservations. |
| 04.3.2 | Selected shipyard shall be responsible for any incidental oil spill during liquid transfer. |
| 04.3.3 | All equipment necessary for liquid transfer and disposal shall be provided by the shipyard. |
| 04.3.4 | Selected shipyard shall be responsible for filling fresh water to the ballast tanks. |
| 04.3.5 | Upon completion of water removal open and ventilate each tank prior to gas free. |
| 04.3.6 | Open each tank and clean free of remaining water, sludge and any other foreign matter, properly dispose of same IAW local regulations. |
| 04.3.7 | Provide temporary lighting and ventilation into all tanks as required. Ensure all lighting/ventilation is explosive proof. |
| 04.3.8 | Perform these tasks in coordination/succession with the gas freeing efforts. |
| 04.3.9 | Upon completion of dewatering clean metal surfaces by degreasing compound prior to mechanical clean or jet blasting. |
| 04.3.10 | Clean to a gas free condition the fuel oil tanks including piping terminating in the tanks. |
| 04.3.11 | Install steel blanks with gaskets or expandable plugs on open ends of piping in the tanks prior to jet blast. |
| 04.3.12 | Jet blast tank interior surfaces (hull, bulkhead and overhead) to white metal in entirety in accordance with reference drawing. Ensure blasted areas shall not be allowed to stand overnight without application of paint coating. |
| 04.3.13 | Ensure metal surfaces, and including piping's shall be cleaned with degreasing compound prior to application of paint. |
| 04.3.14 | Apply paint only to a clean dry surface, free of oil, corrosion, dirt or other foreign matter. Ensure metal surfaces shall be cleaned with degreasing compound prior to paint. |
| 04.3.15 | Apply paint in accordance with and under weather conditions as recommended by the paint manufacturer and U.S. Navy painting schedule. |
| 04.3.16 | Note: All corners, edges, and underneath surfaces shall be stripped paint by using paint brush. |
| 04.3.17 | Extent paint coating drying time as required by weather conditions. |
| 04.3.18 | Apply Paint entire tanks surfaces with one coat MIL-PRF-23236, Type VII, Class 7/18, 20-30 MILS Thickness. |
| 04.3.19 | Apply One Stripe Coat MILL-PRF-23236, Type VII Class 7/18, 10-15 MILS Thickness. |
| 04.3.20 | Upon completion of preservation hold tanks open for inspection by On-Site Representative. |
| 04.3.21 | Remove steel blanks or expandable plugs previously installed at the open ends of piping in the tanks prior to close the tank.. |
| 04.3.22 | Provide three legible copies of (DFT) Dry Film Thickness results and certificate of completion to On Site Representative. |
| 04.3.23 | Note: Interior tank cleaning and preservation shall be satisfactory inspected/approved by On Site Representative. |
| 04.4 | P/S Aft. Ballast Tank; Clean, Inspect, Repair, and Preserve |
| 04.4.1 | Pump out contaminated fresh water approximately more or less 3,600 gallons to facilitate cleaning, inspections and preservations. |
| 04.4.2 | Selected shipyard shall be responsible for any incidental oil spill during liquid transfer. |
| 04.4.3 | All equipment necessary for liquid transfer and disposal shall be provided by the shipyard. |
| 04.4.4 | Selected shipyard shall be responsible for filling fresh water to the ballast tanks. |
| 04.4.5 | Upon completion of water removal open and ventilate each tank prior to gas free. |
| 04.4.6 | Open each tank and clean free of remaining water, sludge and any other foreign matter, properly dispose of same IAW local regulations. |
| 04.4.7 | Provide temporary lighting and ventilation into all tanks as required. Ensure all lighting/ventilation is explosive proof. |
| 04.4.8 | Perform these tasks in coordination/succession with the gas freeing efforts. |
| 04.4.9 | Upon completion of dewatering clean metal surfaces by degreasing compound prior to mechanical clean or jet blasting. |
| 04.4.10 | Clean to a gas free condition the fuel oil tanks including piping terminating in the tanks. |
| 04.4.11 | Install steel blanks with gaskets or expandable plugs on open ends of piping in the tanks prior to jet blast. |
| 04.4.12 | Jet blast tank interior surfaces (hull, bulkhead and overhead) to white metal in entirety in accordance with reference drawing. Ensure blasted areas shall not be allowed to stand overnight without application of paint coating. |
| 04.4.13 | Ensure metal surfaces, and including piping's shall be cleaned with degreasing compound prior to application of paint. |
| 04.4.14 | Apply paint only to a clean dry surface, free of oil, corrosion, dirt or other foreign matter. Ensure metal surfaces shall be cleaned with degreasing compound prior to paint. |
| 04.4.15 | Apply paint in accordance with and under weather conditions as recommended by the paint manufacturer and U.S. Navy painting schedule. |
| 04.4.16 | Note: All corners, edges, and underneath surfaces shall be stripped paint by using paint brush. |
| 04.4.17 | Extent paint coating drying time as required by weather conditions. |
| 04.4.18 | Apply Paint entire tanks surfaces with one coat MIL-PRF-23236, Type VII, Class 7/18, 20-30 MILS. |
| 04.4.19 | Apply One Stripe Coat MILL-PRF-23236, Type VII Class 7/18, 10-15 MILS. |
| 04.4.20 | Upon completion of preservation hold tanks open for inspection by On-Site Representative. |
| 04.4.21 | Remove steel blanks or expandable plugs previously installed at the open ends of piping in the tanks prior to close the tank.. |
| 04.4.22 | Provide three legible copies of (DFT) Dry Film Thickness results and certificate of completion to On Site Representative. |
| 04.4.23 | Note: Interior tank cleaning and preservation shall be satisfactory inspected/approved by On Site Representative. |
| 04.5 | Forepeak Tank; Clean, Inspect, Repair, and Preserve |
| 04.5.1 | Pump out contaminated fresh water approximately more or less 2,608 gallons to facilitate cleaning, inspections and preservations. |
| 04.5.2 | Selected shipyard shall be responsible for any incidental oil spill during liquid transfer. |
| 04.5.3 | All equipment necessary for liquid transfer and disposal shall be provided by the shipyard. |
| 04.5.4 | Selected shipyard shall be responsible for filling fresh water to the ballast tanks. |
| 04.5.5 | Upon completion of water removal open and ventilate each tank prior to gas free. |
| 04.5.6 | Open each tank and clean free of remaining water, sludge and any other foreign matter, properly dispose of same IAW local regulations. |
| 04.5.7 | Provide temporary lighting and ventilation into all tanks as required. Ensure all lighting/ventilation is explosive proof. |
| 04.5.8 | Perform these tasks in coordination/succession with the gas freeing efforts. |
| 04.5.9 | Upon completion of dewatering clean metal surfaces by degreasing compound prior to mechanical clean or jet blasting. |
| 04.5.10 | Clean to a gas free condition the fuel oil tanks including piping terminating in the tanks. |
| 04.5.11 | Install steel blanks with gaskets or expandable plugs on open ends of piping in the tanks prior to jet blast. |
| 04.5.12 | Jet blast tank interior surfaces (hull, bulkhead and overhead) to white metal in entirety in accordance with reference drawing. Ensure blasted areas shall not be allowed to stand overnight without application of paint coating. |
| 04.5.13 | Ensure metal surfaces, and including piping's shall be cleaned with degreasing compound prior to application of paint. |
| 04.5.14 | Apply paint only to a clean dry surface, free of oil, corrosion, dirt or other foreign matter. Ensure metal surfaces shall be cleaned with degreasing compound prior to paint. |
| 04.5.15 | Apply paint in accordance with and under weather conditions as recommended by the paint manufacturer and U.S. Navy painting schedule. |
| 04.5.16 | Note: All corners, edges, and underneath surfaces shall be stripped paint by using paint brush. |
| 04.5.17 | Extent paint coating drying time as required by weather conditions. |
| 04.5.18 | Apply One Coat of MIL-PRF-23236, Type VII, Class 7, 4-8 MILS Thickness. |
| 04.5.19 | Apply One Stripe Coat MILL-PRF-23236, Type VII Class 7, 10-12 MILS Thickness. |
| 04.5.20 | Upon completion of preservation hold tanks open for inspection by On-Site Representative. |
| 04.5.21 | Remove steel blanks or expandable plugs previously installed at the open ends of piping in the tanks prior to close the tank.. |
| 04.5.22 | Provide three legible copies of (DFT) Dry Film Thickness results and certificate of completion to On Site Representative. |
| 04.5.23 | Note: Interior tank cleaning and preservation shall be satisfactory inspected/approved by On Site Representative. |
| 04.6 | Chain Locker; Clean, Inspect, Repair, and Preserve |
| 04.6.1 | Open, ventilate, and clean chain locker, including fairlead roller assembly and sump. |
| 04.6.2 | Remove water, mud, silt and debris, and shall be disposed in accordance with local state and federal regulations. |
| 04.6.3 | Clean to a gas free condition the chain locker prior to entry. |
| 04.6.4 | Provide crane and rigging services for the removal of anchor chain approximately more or less 150 L.F. |
| 04.6.5 | Jet blast chain locker interior surfaces to white metal in entirety (bulkhead, hull, piping, vertical ladder, and overhead) approximately more or less 316 square feet. |
| 04.6.6 | Apply paint only to a clean dry surface, free of oil, corrosion, dirt or other foreign matter. |
| 04.6.7 | Apply paint in accordance with and under weather conditions as recommended by the paint manufacturer and U.S. Navy painting schedule. |
| 04.6.8 | Note: All corners, edges, and underneath surfaces shall be stripped paint by using paint brush. |
| 04.6.9 | Extent paint coating drying time as required by weather conditions. |
| 04.6.10 | Apply One Coat of MIL-PRF-23236, Type VII, Class, 20-30 MILS. |
| 04.6.11 | Apply One Stripe Coat MILL-PRF-23236, Type VII Class 7/18, 10-15 MILS. |
| 04.6.12 | Upon completion of preservation hold tanks open for inspection by On-Site Representative. |
| 04.6.13 | Remove steel blanks or expandable plugs previously installed at the open ends of piping in the tanks prior to close the tank.. |
| 04.6.14 | Provide three legible copies of (DFT) Dry Film Thickness results and certificate of completion to On Site Representative. |
| 04.6.15 | Note: Interior tank cleaning and preservation shall be satisfactory inspected/approved by On Site Representative. |
| 04.7 | Void Tank ; Inspect, Repair, and Preserve |
| 04.7.1 | Clean bilge heavy rust to bare metal, and including bilge pocket. |
| 04.7.2 | Cut appropriate access opening on bottom hull penetrating bilge pocket areas to facilitate inspections and repairs. |
| 04.7.3 | Note: All plates within 25% corrosion limits shall be replaced in accordance with design characteristics. |
| 04.7.4 | Note: For purposes of this estimate, allow 81Sq. Ft. of bilge bulkhead and 2 sq. ft. bilge pocket hull plate replacement in these repairs on different areas. Any additional repairs beyond this quantity will be addressed SEPCOR to On-Site Representative. |
| 04.7.5 | Replace 1-1/2 dia. x 6 in. long pipe nipple penetrating astern tube. |
| 04.7.6 | Replace 1-1/2 pipe flange gasket prior to reconnection. Ensure flanges surfaces are in good physical condition. Replace as required. |
| 04.7.7 | Replace 3" x 3" 2' angle plate penetrating bilge hull. |
| 04.7.8 | Prior to installation of flange to flange connections ensure piping penetrating engine room is debris/barnacle free. Clean as required. |
| 04.7.9 | Upon completion of repair preserve entire void tank in accordance with design characteristics. |
| 04.7.10 | Jet blast void tank interior surfaces to white metal approximately more or less 316 sq. ft.. Ensure blasted areas shall not be allowed to stand overnight without application of paint coating. |
| 04.7.11 | Apply paint only to a clean dry surface, free of oil, corrosion, dirt or other foreign matter. |
| 04.7.12 | Note: All corners, edges, and underneath surfaces shall be stripped paint by using paint brush. |
| 04.7.13 | Apply paint in accordance with and under weather conditions as recommended by the paint manufacturer and U.S. Navy painting schedule. |
| 04.7.14 | Extent paint coating drying time as required by weather conditions. |
| 04.7.15 | Apply Paint entire tanks surfaces with one coat MIL-PRF-23236, Type VII, Class 7/18, 20-30 MILS Thickness. |
| 04.7.16 | Apply One Stripe Coat MILL-PRF-23236, Type VII Class 7/18, 10-15 MILS Thickness. |
| 04.7.17 | Provide three legible copies of (DFT) Dry Film Thickness results and certificate of completion to On Site Representative. |
| 04.7.18 | Note: Interior tank cleaning and preservation shall be satisfactory inspected/approved by On Site Representative. |
| 04.8 | Dirty Oil Tank; Clean, Inspect, Repair, and Preserve |
| 04.8.1 | Open, ventilate, and clean dirty oil tank prior gas free. |
| 04.8.2 | Remove water, mud, silt and debris, and shall be disposed in accordance with local state and federal regulations. |
| 04.8.3 | All equipment necessary for liquid transfer and disposal shall be provided by the shipyard. |
| 04.8.4 | Layout and cut standard manhole opening on top plate of the tank to facilitate cleaning and inspection. |
| 04.8.5 | Fabricate watertight flush bolted manhole cover and install with new bolts and gasket. |
| 04.8.6 | Jet blast tank interior surfaces to white metal (hull, bulkhead, and overhead) approximately more or less 128 sq. ft. Ensure blasted areas shall not be allowed to stand overnight without application of paint coating. |
| 04.8.7 | Apply paint only to a clean dry surface, free of oil, corrosion, dirt or other foreign matter. |
| 04.8.8 | Apply paint in accordance with and under weather conditions as recommended by the paint manufacturer and U.S. Navy painting schedule. |
| 04.8.9 | Note: All corners, edges, and underneath surfaces shall be stripped paint by using paint brush. |
| 04.8.10 | Extent paint coating drying time as required by weather conditions. |
| 04.8.11 | Apply Paint entire tanks surfaces with one coat MIL-PRF-23236, Type VII, Class 7/18, 20-30 MILS Thickness. |
| 04.8.12 | Apply One Stripe Coat MILL-PRF-23236, Type VII Class 7/18, 10-15 MILS Thickness. |
| 04.8.13 | Provide three legible copies of (DFT) Dry Film Thickness results and certificate of completion to On Site Representative. |
| 04.8.14 | Note: Interior tank cleaning and preservation shall be satisfactory inspected/approved by On Site Representative. |
| 2019-05 | Engine Room Interior Hull Surface; Clean, Inspect, Repair and Preserve (Below Water Line) |
| 05.1 | Remove all deck plates and match mark each deck plate for identification and location for reinstallation. |
| 05.2 | Replace defective screws noted during removal and reinstall in accordance with existing designed characteristics. |
| 05.3 | Ventilate, clean, and dispose of contaminated material in accordance with local state and federal regulations. |
| 05.4 | Provide temporary protective covering on each mechanical and electrical equipment prior to start cleaning, repair and preservation. |
| 05.5 |
Isagani.Villasol: Isagani.Villasol:
| Remove water, mud, silt and debris, and shall be disposed in accordance with local state and federal regulations. | |
| 05.6 | Mechanically clean engine room interior hull surfaces (from bilge to water line) to white metal approximately more or less 1,284 square feet. Ensure cleaned surface areas shall not be allowed to stand overnight without application of paint coating IAW U. S. Navy paint schedule. |
05.7 Note: Ensure all estimated areas underneath or below the equipment, tanks, compartments, working spaces and bilges will be accomplished for engine room preservation.
1. Steering Pump Hydraulic Reservoir/Lube Oil Storage Tank Bilge 64 sq. ft.
2. CHT Tank/MPAC's Bilge 35 sq. ft.
3. Capstan Pump Hydraulic Reservoir Bilge 42 sq. ft.
4. Low Sea Chest Box Bilge/Bulkhead 82 sq. ft.
5. Fire Pump Base Plate and Bilge 112 sq. ft.
6. Shaft Compartment Bilge and Bulkhead 80 sq. ft.
7. Bilge Pump, Fire Gen. Service Pump, and Salt Water Manifold Bilge 81 sq. ft.
8. Day Tank Bilge12 sq. ft.
9. Upper Sea Chest Box 4 sq. ft.
10. No. 2 Port/Stbd. Fuel Tanks Top Plate 212 sq. ft.
11. MPDE/Red Gear Bilge 410 sq. ft.
12. No. 1 & 2 SSDG Bilge112 sq. ft.
13. Heat Exchanger Bilge16 sq. ft.
14. MPDE Fuel Filter Bilge 4 sq. ft.
15. MPDE Oil Strainer Bilge 2 sq. ft.
16. Engine Room Working Space Bilge 56 sq. ft.
| 05.8 | Upon completion of preservation reinstall all material to the proper location and clean the entire engine room in orderly manners. |
| 05.9 | Note: Accomplish this work phase below waterline of the boat. |
| 05.10 | Apply paint only to a clean dry surface, free of oil, corrosion, dirt or other foreign matter. |
| 05.11 | Apply paint in accordance with and under weather conditions as recommended by the paint manufacturer. |
| 05.12 | Extent paint coating drying time as required by weather conditions. |
| 05.13 | Note: All corners, edges, and underneath surfaces shall be stripped paint by using paint brush. |
| 05.14 | Bilge Area: |
Apply One Stripe Coat MIL-23236-Type VII Class 5, Class 17, 6-8 MILS Thickness.
Apply One Top Coat MIL-PRF23236 Type VII, Class 5, 6-8 MILS.
05.15 Deck/Bulkheads
Apply One Coat MIL-PRF-23236, Type VII, Class5, 4-8 MILS Thickness.
| 05.16 | Provide three legible copies of (DFT) Dry Film Thickness Report and Certification to On Site Representative. |
| 05.17 | Note: Interior tank cleaning and preservation shall be satisfactory inspected/approved by On Site Representative. |
| 2016-06 | Lazarette Compartment Interior Hull; Clean, Inspect Repair and Preserve |
| 06.1 | Remove all gratings to facilitate cleaning and preservation. |
| 06.2 | Open, ventilate, clean, and dispose of contaminated material in accordance with local state and federal regulations. |
| 06.3 | Remove water, mud, silt and debris, and shall be disposed in accordance with local state and federal regulations. |
| 06.4 | Provide temporary protective covering on each mechanical and electrical equipment prior to start cleaning, repair and preservation. |
| 06.5 | Mechanically clean lazarette compartment interior hull surfaces, bulkhead and overhead to white metal in entirety (, approximately more or less 1.054 square feet. Ensure cleaned surfaces areas shall not be allowed to stand overnight without application of paint coating. |
| 06.6 | Apply paint only to a clean dry surface, free of oil, corrosion, dirt or other foreign matter. |
| 06.7 | Apply paint in accordance with and under weather conditions as recommended by the paint manufacturer and U.S. Navy paint schedule. |
| 06.8 | Note: All corners, edges, and underneath surfaces shall be stripped painted by using paint brush. |
| 06.9 | Extent paint coating drying time as required by weather conditions. |
| 06.10 | Bilge Area: |
Apply One Stripe Coat MIL-23236-Type VII Class 5, Class 17, 6-8 MILS Thickness.
Apply One Top Coat MIL-PRF23236 Type VII, Class 5, 6-8 MILS.
06.11 Deck/Bulkheads/Overhead:
Apply One Coat MIL-PRF-23236, Type VII, Class5, 4-8 MILS Thickness.
| 06.12 | Provide three legible copies of (DFT) Dry Film Thickness results and certificate of completion to On Site Representative. |
| 06.13 | Note: Interior tank cleaning and preservation shall be satisfactory inspected/approved by On Site Representative. |
| 2019-07 | Fendering System Removal/Reinstallations/Repair As Required |
| 07.1 | a) Location of Work: |
1) Dry Dock Facility
b) Identification:
1) Not Applicable
c) References:
1) NAVSHIPS Drawing No. 600-4442434 Fendering Arrangement & Details
2) NAVSHIPS Drawing No. 600-4483720 Installation of Additional Hull Fendering
| 07.2 | Inspection |
| 07.2.1 | Visually inspect underwater hull for presence and condition of all bow fenders, side fenders, split pipe fenders. |
| 07.2.2 | Inspect split pipe fenders for dent, damaged, excessive corrosion and deterioration. |
| 07.2.3 | Submit condition report of inspection pertaining to condition of fendering system to On-Site Representative. |
| 07.2.4 | Issues outside this scope of work which may be found during this phase will be addressed SEPCOR (Separate Correspondence) to On-Site Representative. |
| 07.3 | Reinstallation of Bow Fender |
| 07.3.1 | Upon satisfactory completion of hull repair and preservation reinstall bow fenders in accordance IAW above reference c.1 & c.2. |
| 07.3.3 | Replace chains, eye bolts, nuts, shackles, washers and including retainer plates IAW existing designed characteristics. |
| 07.3.4 | Replace pad eye found defective prior to reinstallation and securing bow fenders. |
| 07.3.5 | Provide fire watch services until completion of hot work. |
| 07.3.6 | Reinstallation of P/S Side D-Fenders |
| 07.4.2 | Purchase and replace Port Side, approximately 18 L.F. "D"-fender in accordance with above reference c.1 & c.2. |
| 07.4.3 | Note: Existing D- Fenders found defective after cleaning shall be addressed by Separate Correspondence. |
| 07.4.4 | Replace 4 each dented retainer plate 1/2" thick x 5-1/2" wide x 21-1/4" long penetrating side hull. |
| 07.4.5 | Clean and chased all bolts and nuts prior to reuse. |
| 07.4.6 | Fabricate and install 14 each new 3" schedule 80 bended pipe mounting brackets in accordance with existing designed characteristics. |
| 07.4.7 | Provide fire watch services until completion of hot work. |
| 07.4.8 | Reinstall entire rubber fenders upon satisfactory completion structural repair and preservation with complete securing bolts and fasteners. |
| 07.4.9 | Salvage all removed and unused rubber fendering to be loaded onboard the tug for return to GTMO. |
| 07.5 | Reinstallation of P/S Side Under Water Rubber Fenders |
| 07.5.1 | Clean and preserve flat bars, studs, washers, nuts, and all associated mounting and securing accessories of rubber fender with labeled in accordance with reference c.1 & c.2. Note: Existing rubber fenders if found defective after cleaning shall be addressed by SEPCOR. |
| 07.5.2 | Replace stud bolts, nuts and washers found defective. Note: the purposes of this estimate, allow 20 each stud bolts and nuts replacement. Any additional repairs beyond this quantity will be addressed SEPCOR to Site Representative. |
| 07.5.3 | Upon satisfactory completion of hull repair and preservation reinstall bow fenders in accordance IAW above reference c.1 & c.2. |
| 07.5.4 | Replace pad eye found defective prior to reinstallation of bow fenders. Ensure pad eye design shall be IAW existing designed characteristics. |
| 07.5.5 | Note: All existing stud bolts damaged during the process of removal shall be replaced by selected shipyard. |
| 07.5.6 | Provide fire watch services until completion of hot work. |
| 07.6 | Replace Port and Starboard 01 Level Fender (6 EA.) |
| 07.6.1 | Remove existing Port and Starboard and install new cylindrical type rubber fender in accordance with existing design characteristics. |
| 07.6.2 | Note: Selected bidders shall purchased 6 ea. 01 Level Fender (Bucket Fender) including turn buckles and chains in accordance with existing design characteristics. |
| 07.6.3 | Repair and preserve bucket fenders structural supports prior to reinstallation of 6 each new fender . Preservation shall be in accordance U. S. Navy painting Schedule. |
| 07.6.4 | Note: Replace turn buckles shackles, chains and other accessories with stainless steel material. |
| 2019-08 | Hull Zinc Protector; Removal and Renewal |
| 08.1 | a) Location of Work: |
1) Dry dock Facility
b) Identification:
1) Zinc Data: MIL-A-18001, Qty- 37 ea.
C) References:
1) NAVSHIPS Drawing No. 600-4442435 Cathodic protection
| 08.2 | Removals; |
| 08.2.1 | Remove all hull zinc protectors and welded stud bolts and grinds flush as stated in NAVSHIPS Drawing No. 600-4442435 installed in various locations. |
| 08.2.2 | Replace defective stud bolt as required. |
| 08.3 | Installation; |
| 08.3.1 | Note: Zinc Anodes and fasteners shall be provided by the government (GFM) |
| 08.3.2 | Upon satisfactory completion of hull repair, cleaning, and painting, furnish and install new 37 each zinc protectors complete with approx. 74-each stud bolts and nuts in detailed locations and in accordance with the above reference NAVSHIPS Drawing No. 600-4442435. |
| 08.3.3 | Note: Zinc surfaces shall not be preserved or painted. Additional zincs may be required to be installed. These efforts will be addressed SEPCOR to the On-Site Representative. |
| 2019-09 | Sea (Hull) Valves, Sea Chest Box, Waster Piece and Strainers: Removal, Repair and Reinstallation |
| 09.1 | a) Location of Work: |
1) Sea Chest Box, Engine Room
b) Identification:
1) Not Applicable
c) References:
1) NAVSHIPS Drawing No. 120-4442381 Sea chest Details
| 09.4 | Sea chest Valves; Remove and Replace |
| 09.4.1 | Note: All valves require applicable hydrostatic testing and documentation. All sea chest valves and flanges listed on items 09.4.5 through 09.4.21 and item 09.4.24 will be (GFM) Government Furnished Material (GFM) ordered by the Contractor using the NTE CLIN. The valves listed in 09.4.22 and 09.4.23 will not be replaced. |
| 09.4.2 | Accomplish installation of all new sea chest valves with new gasket and securing fasteners in accordance with design characteristics. |
| 09.4.3 | Accomplish leak testing of new valves prior to installations with the presence of On-Site Representative. |
| 09.4.4 | Provide three legible copies leak test report to On Site Representative to installation. |
| 09.4.5 | Notes: |
1. Remove/replace six (6) each 1- 1/2 in. socket weld flange for sea chest air vent valves.
2. Remove/replace two (2) each 3 in. socket weld flange for SSDG's lower sea chest valve.
| 09.4.6 | Clean free and lubricate valve stem. |
| 09.4.7 | MPDE Low Sea Chest Main 1 EA. 6” Angle Globe Valve, Primary, Location: 2-23-0 (FR-23-25) |
| 09.4.8 | MPDE High Sea Chest Main 1 EA. 6” Gate Valve, Location: 2-25-1 (FR-25-26) |
| 09.4.9 | SSDG’s High Sea Chest Main 1 EA. 3” Angle Valve, Location: 2-25-1 (FR-25-26) |
| 09.4.10 | SSDG’s Low Sea Chest Main 1 EA. 3” Gate Valve, Location: 2-23-0 (FR-23-25) |
| 09.4.11 | FPDE Sea Chest Main 1 EA. 3” Globe Valve, Primary, Location: 2-37-2 (FR-37-39) |
| 09.4.12 | FPDE Sea Chest 1 EA. 2” Globe Valve, Secondary, Location: 2-37-2 (FR-37-39) |
| 09.4.13 | Main Fire Pump Sea Chest 1 EA. 8” Gate Valve, Location: 2-37-2 (FR-37-39) |
| 09.4.14 | Main Fire Pump Sea Chest 1 EA. 1” Globe Valve, Blowdown, Location: 2-37-2 (FR-37-39) |
| 09.4.15 | Main Fire Pump Sea Chest 1 EA. 1-1/2” Gate Valve, Vent, Location: 2-37-2 (FR-37-39) |
| 09.4.16 | Low Sea Chest 1 EA. 1" Globe Valve, Blowdown, Location: 2-23-0 (FR-23-25) |
| 09.4.17 | Low Sea Chest 1 EA. 1-1/2” Gate Valve, Vent, Location: 2-22-0 (FR-23-25) |
| 09.4.18 | High Sea Chest 1 EA. 1” Globe Valve, Blowdown, Location: 2-25-1 (FR 25-26) |
| 09.4.19 | High Sea Chest 1 EA. 1-1/2” Gate Valve, Vent, Location: 2-25-1 (FR 25-26) |
| 09.4.20 | A/C Circulating Pump Sea Chest 1 EA. 2” Globe Valve, Location: 2-37-2 (FR 37-39) |
| 09.4.21 | Fire / Gen Service Pump 1 EA. 3” Gate Valve, Location: 2-37-2 (FR 37-39) |
| 09.4.22 | Port Riser Valve, Main Deck 1 EA. 4" Gate Valve Location: 1-35-2 (FR-35) |
| 09.4.23 | Stbd. Riser Valve, Main Deck 1 EA. 4" Gate Valve Location: 1-35-1 (FR-35) |
| 09.4.24 | Astern Tube Cooling Isolation Valve 1 EA. 1-1/4" Gate Valve, Location: 2-42-0 (FR 42-43) |
| 09.4.25 | Issues which may be found during this phase will be addressed SEPCOR (Separate Correspondence) to On-Site Representative. |
| 09.4.26 | Note: Salvage all removed old sea chest valves and to be loaded onboard the tug for return to GTMO. |
| 2019-10 | Rudder; Remove; Clean, Inspect, Repair, Preserve and Reinstall |
| 10.1 | a) Location of Work: |
1) Dry dock Facility
b) Identification:
1) Not Applicable
c) References:
1) NAVSHIPS Drawing No. 519-4442422 Rudder Details
2) NAVSHIPS Drawing No. 519-4442423 Rudder Stock & Bearing Support
| 10.2 | Cleaning and Inspection |
| 10.2.1 | Make the necessary removals and unship the rudder and all associated components. |
| 10.2.2 | Sandblast to white metal, clean rudder surfaces and all related parts components free of all corrosion, grease and any foreign matter. |
| 10.2.3 | Visually inspect rudder for cracks, pitting's, and other defects, provide written condition report to On-Site Representative. |
| 10.2.4 | Examine all rudder components for wear and defects, and other discrepancies. Provide written condition report to On-Site Representative. |
| 10.2.5 | Note: For purposes of this estimate, allow for a combined 10 Sq. Ft of plate replacement to be accomplished in these repairs, 100 SQ Inches of Clad Welding (pitting repair) and 50 Linear ft. of weld repair. Any issues/additional repairs beyond this quantity will be addressed SEPCOR to On-Site Representative. |
| 10.3 | Rudder Air Test |
| 10.3.1 | Air test rudder for two (2) PSI. Pressure must hold for a minimum of ten (10) minutes for satisfactory test in the presence of On-Site Representative. An appropriate water column shall be used to conduct air test. |
| 10.3.2 | Unsatisfactory results of air test shall be repaired by the shipyard. |
| 10.3.3 | Provide three legible copies of air test results and certificate of completion to On Site Representative. |
| 10.4 | Preservation |
| 10.4.2 | In the presence of On-Site Representative and upon completion of repairs and satisfactory test, flood rudder with metal conditioning compound. (Flow Coat). |
| 10.4.3 | Appropriate anti-fouling system to be installed as applied on hull area. |
| 10.4.4 | Reinstall 2-each drain plugs with thread sealant compound. |
| 10.4.5 | Rudder surfaces prepared and applied with appropriate pretreatment/preservation prior to re-install. |
| 10.4.6 | Install 6-ea zinc anode to rudder surfaces (3 each side, evenly spaced in the center of the rudder) complete with mounting studs bolts and nuts after completion of repairs and preservations. |
| 10.5 | Re-installation |
| 10.5.1 | Re-install rudder and associated components, after completion and approval of all rudder repair work and testing has been accepted by the On-Site Representative. |
| 10.5.2 | Reinstall rudder and associated components in accordance with reference c.1 & c.2. |
| 2019-11 | Rudder Stock Removal, Inspection, Repair, and Re-installation |
| 11.1 | a) Location of Work: |
1) Dry dock Facility
b) Identification:
1) Not Applicable
c) References:
1) NAVSHIPS Drawing No. 519-4442422 Rudder Details
2) NAVSHIPS Drawing No. 519-4442423 Rudder Stock & Bearing Support
| 11.2 | Removal; Clean, and Inspect |
| 1.2.1 | When authorized by On-Site Representative, make the necessary removals and unship the rudder stock, including associated components (See references C1 and C2 as listed in this section). |
| 1.2.2 | Visually inspect the condition/check rudder stock for cracks, pitting's, and other defects, provide written condition report to the On-Site Representative. |
| 11.3 | Cleaning and Examination |
| 11.3.1 | Clean all parts of rudder stock, bearing surfaces and other related components free of all corrosion, grease and any foreign matter. |
| 11.3.3 | Examine all the rudder components for wear and defects. Take and record dimensions, condition and clearance measurements of the rudder stock, rudder bearings, fasteners and all associated accessories, identify any clearance reading which do not fall within established and approved parameters IAW NSTM S9086-HN-STM-010/CH-244R7 Table 244-5-1. Provide written condition report to the On-Site Representative. |
| 11.3.4 | Issues which may be found during this phase will be addressed SEPCOR (Separate Correspondence) to On-Site Representative. |
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