REVISED_SPEC_FOR_CGC_MUSKINGUM.16MAY2017.doc
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USCGC MUSKINGUM (WLR 75402)
USCG 130 BARGE (13068)
SPECIFICATION FOR DRYDOCK REPAIRS
FY2017
Developed By: Alessandra Twomey (Rev-1, 16 May 2017)
TABLE OF CONTENTS
ivRevisions Record vConsolidated List of References ixConsolidated List of Government-furnished Property xiConsolidated List of Critical Inspection Items xiiPrincipal Characteristics - Tender xiiiPrincipal Characteristics - Barge
1General Requirements
11WORK ITEM 1: Hull Plating (U/W Body), Inspect- Tender
15WORK ITEM 2: Hull Plating (U/W Body), Inspect - Barge
19WORK ITEM 3: Hull Plating (U/W Body), Ultrasonic Testing - Tender
22WORK ITEM 4: Hull Plating (U/W Body), Ultrasonic Testing - Barge
25WORK ITEM 5: Voids (Non-Accessible), Leak Test - Tender
28WORK ITEM 6: Voids (Non-Accessible), Leak Test - Barge
31WORK ITEM 7: Voids (Non-Accessible), Internal Surfaces, Preserve - Tender
33WORK ITEM 8: Voids (Non-Accessible), Internal Surfaces, Preserve - Barge
35WORK ITEM 9: Propulsion Shafting; Remove, Inspect, and Reinstall
40WORK ITEM 10: Propulsion Shaft Bearings (External), Check Clearances
43WORK ITEM 11: Propulsion Shaft Bearings (External), Renew
46WORK ITEM 12: Propeller, Perform Minor Repairs and Reconditioning
50WORK ITEM 13: Propellers, Remove, Inspect, and Reinstall
54WORK ITEM 14: Keel Coolers, Clean, Inspect and Hydro - Tender
58WORK ITEM 15: Keel Coolers, Clean, Inspect and Hydro - Barge
62WORK ITEM 16: Fathometer Transducer, Renew – Tender
66WORK ITEM 17: Fathometer Transducer, Renew – Barge
70WORK ITEM 18: Rudder Assembly; Remove, Inspect And Reinstall
75WORK ITEM 19: Rudder(s), Preserve (“100%”)
78WORK ITEM 20: Hull Fittings (Weight Handling Rigging Hardware), Inspect and Test - Barge
81WORK ITEM 21: Hull Fittings (Mooring and Towing), Inspect and Test - Barge
84WORK ITEM 22: Spuds, Overhaul - Tender
88WORK ITEM 23: Spuds, Overhaul - Barge
92WORK ITEM 24: Spud Wells, Preserve - Tender
94WORK ITEM 25: Spud Wells, Preserve - Barge
96WORK ITEM 26: U/W Body, Preserve (100%) - Tender
100WORK ITEM 27: U/W Body, Preserve (100%) - Barge
104WORK ITEM 28: Cathodic Protection / Magnesium Anodes, Renew - Tender
107WORK ITEM 29: Cathodic Protection / Magnesium Anodes, Renew - Barge
110WORK ITEM 30: Drydock - Tender
114WORK ITEM 31: Drydock - Barge
118WORK ITEM 32: Temporary Services, Provide - Tender
121WORK ITEM 33: Sea Trial Performance, Support, Provide
125WORK ITEM 34: Boat Davit Winch, Shrink Wrap
127WORK ITEM 35: Buoy and Cargo Handling Crane, Shrink Wrap
129WORK ITEM 36: Sea Valves, Renew - Tender
133WORK ITEM 37: Sea Strainers, Renew - Tender
136WORK ITEM 38: Decks - Exterior, Preserve (“Non-Skid Broadcast Grit” System) - Tender
139WORK ITEM 39: Decks – Exterior (Buoy or Construction Deck), Preserve 100%
142WORK ITEM 40: Tanks (MP Fuel Service), Clean and Inspect - Tender
146WORK ITEM 41: Propulsion Shaft Seals, Mechanical & Inflatable, Overhaul and Renew
150WORK ITEM 42: Chill Water Piping Insulation, Renew
153WORK ITEM 43: Anti-Ventilation Underwater Hull Strakes, Installation
Revisions Record This page is used to record specification revisions, which may have occurred subsequent to a Revision 0 (Rev-0) package. Information listed is intended to provide contractors and field unit personnel a means to ensure all the current specification revision pages are present when reviewing or utilizing this specification package.
| DATE |
| REV# |
| WORK ITEM# |
| CHANGES MADE |
NOTE : All work item and paragraph numbers listed above for a given revision correspond to same numbers in the previous revision. This revised specification is self-contained with all of the above listed changes incorporated.
Consolidated List of References
The below-listed documents form a part of this specification to the extent specified herein. Approval/publication dates or revision dates/numbers are also identified, to ensure that same document versions are used at time of specification writing and during contract execution.
All Coast Guard drawings, technical publications, and standard specifications will be provided to contractors by the Coast Guard at an appropriate time, or upon request, free of charge. Other Government documents may be accessed – free of charge – as follows:
· MIL/DOD/CID Specifications: http://www.assistdocs.com/search/search_basic.cfm
· Commandant Instruction Manuals: http://www.uscg.mil/directives/default.asp
· Public Laws, Code of Federal Regulations, U.S Codes, and other Federal Government laws:: www.gpoaccess.gov The Government is aware of the following internet web links where contractors may procure commercial specifications:
· American Welding Society (AWS): http://www.awspubs.com/index.php
· ANSI, ASTM, IEEEE, NFPA, ASME, SAE Standards: http://www.techstreet.com/
· NFPA: http://www.nfpa.org
· SSPC Standards and pictorial guides: http://shopping.netsuite.com/sspcmarketplace
COAST GUARD DRAWINGS
Coast Guard Drawing 75E WLR 114-001, Rev -, Anti-Ventilation Strake Installation and Details
Coast Guard Drawing 75 WAGL 2200-010, -Rev D, Main Rudder Stock And Fittings For Jastram S2-16-2-35 Steering System
Coast Guard Drawing 75 WAGL 2200-011, Rev D, Flanking Rudder Stock And Fittings For Jastram S2-16-2-35 Steering System
Coast Guard Drawing 130 CGB 111-002, Rev 9, Details, Side Shell Plating and Framing
Coast Guard Drawing 130 CGB 530-002, Rev 3, Cooling Water Piping Schematic
Coast Guard Drawing 130 CGB 633-001, Rev -, Cathodic Protection
Coast Guard Drawing 130 CGB 71-77 085-001, Rev B, General Arrangements and Profile
Coast Guard Drawing 130 CGB68 111-001, Rev 3, Hull Details – Bottom & Main Deck Plating and Framing Details
Coast Guard Drawing 130 CGB68 123-001, Rev 2, Spud Well Bhds & Spud Details
Coast Guard Drawing 130 CGB71-77 085-004, Rev 1, Docking Plan
Coast Guard Drawing 130 CGB71-77 085-005, Rev -, Body Plan
Coast Guard Drawing 130 CGB71-77 085-006, Rev -, Curves of Form
Coast Guard Drawing 130-CGB67 123-2, Rev 2, Transducer Well Details
Coast Guard Drawing 75 WAGL 0700-004, Rev -, Docking Plan
Coast Guard Drawing 75 WAGL 633-001, Rev -, Cathodic Protection
Coast Guard Drawing 75C WAGL 0103-23, Rev 4, Gen Design Plans & Outboard Profile (75401-05)
Coast Guard Drawing 75C WAGL 0500-001, Rev 1, Lines and Offsets
Coast Guard Drawing 75C WAGL 0700-025, Rev -, Docking Block Arrangement (‘C’ Class)
Coast Guard Drawing 75C WAGL 1101-001, Rev 1, Dk Plate Plan & Shell Expansion
Coast Guard Drawing 75C WAGL 1101-003, Rev C, New Grid Cooler Pocket P/S to Suit IF1312 MDE
Coast Guard Drawing 75C WAGL 1103-024, Rev 2, Transverse Frames #15-22
Coast Guard Drawing 75C WAGL 1103-025, Rev -, Framing Plan
Coast Guard Drawing 75C WAGL 1103-026, Rev -, Transverse Frames #23-28
Coast Guard Drawing 75C WAGL 1105-002, Rev 4, Longitudinal Girder XA17 R/L XD17 R/L – Longitudinal Bulkhead XB17 R/L and Longitudinal Deck Ls XG17
Coast Guard Drawing 75C WAGL 2200-023, Rev 1, Backing Rudder Trunk Dets (75401-75405)
Coast Guard Drawing 75C WAGL 2200-024, Rev -, Rudder Details (75402-75405)
Coast Guard Drawing 75C WAGL 2200-024, Rev -, Rudder Dets (75401-75405)
Coast Guard Drawing 75C WAGL 2602-21, Rev 2, Spud Derrick & Spud (75402-75405)
Coast Guard Drawing 75C WAGL 2602-24, Rev 1, Towing Knees and Spudwell (75402-04)
Coast Guard Drawing 75C WAGL 2901-001, Rev 2, Curves of Form
Coast Guard Drawing 75C WAGL 2901-021, Rev -, Tank CAPACITY - 95% Tables
Coast Guard Drawing 75C WAGL 3802-25, Rev -, Chiller Condenser Cooling Water Arrangement (75402-05)
Coast Guard Drawing 75C WAGL 4103-006, Rev G, Jacket Water Piping Mods to Suit IF1312 MDE
Coast Guard Drawing 75C WAGL 4803-21, Rev-, Fire Piping Diagram (75402-05)
Coast Guard Drawing 75C WAGL 4803-22, Rev 2, Fire Piping Arrangement (75402-05)
Coast Guard Drawing 75C WAGL 700-025, Rev-, Docking Block Arrangement (‘C’ Class)
Coast Guard Drawing 75C-WAGL 3800-1, Rev 3, Heating & A/C Chill Wtr Sys
Coast Guard Drawing 75C-WAGL 3802-22, Rev -, Heat & A/C Piping
Coast Guard Drawing 75C-WAGL 4301-6, Rev E, Shafting Installation to Suit If 1312 MDE
Coast Guard Drawing 75C-WAGL 2200-022, Rev-, Steerng Rudder Trunk Dets (75401-75405)
Coast Guard Drawing 75C-WAGL 2200-11, Rev -, Steering System Arrgement for Jastrum S2-16-2-35
Coast Guard Drawing 75C-WAGL 2200-12, Rev -, Flanking Steering System Arrangement for Jastrum S2-16-2-35
Coast Guard Drawing 75C-WAGL 2200-13, Rev A, Rudder Post Installation for Jastrum S2-16-2-35 Steering System
Coast Guard Drawing 75C-WAGL 4301-6, Rev F, Shafting Installation to Suit If 1312 MDE
Coast Guard Drawing 75-WAGL 4400-3, Rev E, Propeller to Suit IF1312 MDE
Coast Guard Drawing 75-WAGL 4400-3, Rev J, Propeller to Suit IF1312 MDE
Coast Guard Drawing 75-WAGL 4301-5, Rev N, Shafting Machining Details to Suit If 1312 MDE
Coast Guard Drawing 75-WAGL 4400-3, Rev L, Propeller to Suit IF1312 MDE
Coast Guard Drawing FL 1204-3, Rev A, Welded Padeyes & Links
Coast Guard Drawing FL 6713-203, Rev -, CRP-V850 Transducer (SS505) Adapter Assembly
Coast Guard Drawing75C WAGL 103-23, Rev 4, Gen Design Plns & Outbd Profile (75401-05)
Coast Guard Fleet Drawing FL 2602-10, Rev J, Spud Arrangements and Details
COAST GUARD PUBLICATIONS
Coast Guard Commandant Instruction (COMDTINST) M10360.3, Jun 2006, Coatings and Colors Manual
Coast Guard Technical Publication (TP) 3494, 09-DEC-03, Shaft Seal - Type Fse
Coast Guard Technical Publication (TP) 4506, Wartsila TM-EL-68839, Issue A, Mar 2005, Rudderstock Seal Type EL
Coast Guard Technical Publication (TP) 5491, SWBS 256, Apr 2013, Keel Grid Cooler (Duramax)
Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General Requirements
Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2014, Welding and Allied Processes
Surface Forces Logistics Center Standard Specification 5000 (SFLC Std Spec 5000), 2014, Auxiliary Machine Systems
Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2014, Requirements for Preservation of Ship Structures
Surface Forces Logistics Center Standard Specification 8634 (SFLC Std Spec 8634), 2014, Drydocking
Surface Forces Logistics Center Standard Specification 8635 (SFLC Std Spec 8635), 2014, Temporary Services
OTHER REFERENCES
American Bureau of Shipping (ABS) 2, Rule Requirements for Survey After Construction, 2007, Part 7, Appendix Section 10, Guide for Bronze and Stainless Steel Propeller Castings
American Society of Mechanical Engineers (ASME) B16.34, 2004, Valves-Flanged, Threaded, and Welding End
ASTM International (ASTM) B 843, 2007, Standard Specification for Magnesium Alloy Anodes for Cathodic Protection
ASTM International (ASTM) D1330, 2010, Standard Specification for Rubber Sheet Gaskets
ASTM International (ASTM) D1709, 2008, Standard Test Methods for Impact Resistance of Plastic Film by the Free-Falling Dart Method
ASTM International (ASTM) D1922, 2008, Standard Test Method for Propagation Tear Resistance of Plastic Film and Thin Sheeting by the Pendulum Method
ASTM International (ASTM) D3951, Reapproved 2004, Standard Practice for Commercial Packaging
ASTM International (ASTM) D4138, 2013, Standard Practices for Measurement of Dry Film Thickness of Protective Coating Systems by Destructive, Cross-Sectioning Means
ASTM International (ASTM) D5363, 2008; Standard Specification for Anaerobic Single-Component Adhesives (An)
ASTM International (ASTM) D882, 2009, Standard Test Method for Tensile Properties of Thin Plastic Sheeting
ASTM International (ASTM) F683, 2003, Standard Practice for Selection and Application of Thermal Insulation for Piping and Machinery
ASTM International (ASTM) F992, 2006, Standard Specification for Valve Label Plates
Commercial Item Description (CID) A-A-52624, Nov 2008, Antifreeze, Multi Engine Type, Ethylene Glycol (For Caterpillar equipment applications, use CAT Extended Life Pre-Mix coolant.)
Commercial Item Description (CID) A-A-59313, Nov 2003, Thread Compound; Anti-seize, Zinc Dust-Petrolatum
Federal Specification (Fed Spec) HH-P-151, Mar 1991, Packing; Rubber-Sheet, Cloth-Insert
Fernstrum Gridcooler Installation and Maintenance Manual, 2013, Form 175
International Standard For Organization (ISO) 484/2, 1981, Shipbuilding - Ship Screw Propeller - Manufacturing Tolerances - Part 2: Propellers of Diameter Between 0.80 and 2.50 m, Inclusive
International Standard For Organization (ISO) 484/2, 1981, Shipbuilding - Ship Screw Propeller - Manufacturing tolerances - Part 2: Propellers of Diameter Between 0.80 and 2.50m, Inclusive
Manufacturers Standardization Society of the Valve and Fittings Industry (MSS) SP-61, 2003 Edition, Pressure Testing Of Steel Valves
Manufacturers Standardization Society of the Valve and Fittings Industry (MSS) SP-67, 2002 Edition, Butterfly Valves
Manufacturers Standardization Society of the Valve and Fittings Industry (MSS) SP-72, 1999 Edition, Ball Valves with Flanged or Butt-Welding Ends for General Service
Manufacturers' Standardization Society of the Valve and Fittings Industry (MSS) SP-80, 2008 Edition, Bronze Gate, Globe, Angle and Check Valves
MIL PRF-16173, Sep 2006, Corrosion Prevention Compound, Solvent Cut Back, Cold Application
MIL-A-22262, Mar 1996; Abrasive Blasting Media Ship Hull Blast Cleaning
MIL-DTL-1222, Dec 2000, Studs, Bolts, Screws and Nuts for Applications Where a High Degree of Reliability Is Required
MIL-PRF-16173, 2006, Corrosive Preventive Compound, Solvent Cutback, Cold Application
MIL-PRF-16173, Sep 2006, Corrosion Prevention Compound, Solvent Cut-Back, Cold-Application
MIL-S-45180, 1998; Sealing Compound, Gasket, Hydrocarbon Fluid and Water Resistant
MIL-STD-167-1, Nov 2005, Mechanical Vibrations of Shipboard Equipment (Type I - Environmental and Type II - Internally Excited)
Naval Sea Systems Command (NAVSEA) Underwater Ship Husbandry Manuals (UWSH) S0600-AA-PRO-160, Jan 2006, Chapter 16, Cofferdams
NAVSEA Drawing 804-5959214, Rev-, Piping Insulation - Installation Details
Society of Automotive Engineers (SAE) Aerospace Material Specification (AMS) C6183, 2013, Cork and Rubber Composition Sheet; For Aromatic Fuel and Oil Resistant Gaskets
Society of Automotive Engineers (SAE) Aerospace Material Specification (AMS) G-6032, 2014, Grease, Plug Valve, Gasoline and Oil Resistant, NATO Code Number G-363, Metric
The Society for Protective Coatings (SSPC) Surface Preparation Specification No. 1 (SSPC-SP 1), 2004, Solvent Cleaning
The Society for Protective Coatings (SSPC) Surface Preparation Specification No.1 (SSPC-SP 1), 2015, Solvent Cleaning
The Society for Protective Coatings (SSPC), January 2015, Paint Application Specification No. 2 (PA-2), Procedure for Determining Conformance to Dry Coating Thickness Requirements
The Society for Protective Coatings (SSPC)/NACE International (NACE) Joint Surface Preparation Standard SSPC-SP WJ-2/NACE WJ-2, 2012, Waterjet Cleaning of Metals – Very Thorough Cleaning
The Society for Protective Coatings (SSPC)/NACE-International (NACE) Joint Surface Preparation Standard SSPC-SP 10/NACE No. 2, 2004, Near-White Blast Cleaning
The Society for Protective Coatings (SSPC)/NACE-International (NACE) Joint Surface Preparation Standard SSPC-SP 10/NACE No. 2, 2007, Near-White Blast Cleaning
Consolidated List of Government-furnished Property
The following is a list of property, which the Government will furnish. This list supersedes any other material obligations indicated or implied by referenced drawings.
| WORK ITEM |
| MTI |
| ITEM DESCRIPTION |
| NSN/PN |
| QTY |
| ESTIMATED COST |
($/Unit)
| 9 |
| Y |
| **Propulsion Shaft |
| NSN: 2010-01-557-1512 |
| 2 ea. |
| 28,653.00 |
| 9 |
| N |
| **Pedestal Block Bearing |
| NSN: 3130-01-F11-2242 / 02-BCP-408-EX-AT |
| 2 ea |
| 2,950.00 |
| 13 |
| Y |
| **Propeller, RH |
| NSN: 2010-01-534-9089 |
| 1 ea. |
| 13,000.00 |
| 13 |
| Y |
| **Propeller, LH |
| NSN: 2010-01-534-9095 |
| 1 ea. |
| 13,000.00 |
| 16 |
| N |
| ***Fathometer Transducer, Shallow Water, 50-200 kHz (Airmar Technology SS505) |
| NSN: 5845-01-470-2500 |
| 1 ea. |
| 343.63 |
| 17 |
| N |
| ***Fathometer Transducer, Shallow Water, 50-200 kHz (Airmar Technology SS505) |
| NSN: 5845-01-470-2500 |
| 2 ea. |
| 343.63 |
| 18 |
| Y |
| **Rudder - Steering |
| NSN: 2040-01-530-9095 |
| 2 ea. |
| 28,675.25 |
| 18 |
| Y |
| **Rudder - Flanking |
| NSN: 2040-01-531-4393 |
| 2 ea. |
| 37,850.50 |
| 18 |
| Y |
| **Upper Rudder bearing (SKF PN 23222CC/W33) |
| NSN: 3110-01-F11-2241 |
| 4 ea. |
| 547.88 |
| 18 |
| N |
| Rudder EL Seal, Major Overhaul Kit (WLP-001427001) |
| NSN: 5330-01-646-5935 |
| 4 ea. |
| 4,000.00 |
| 30 |
| Y |
| *Transducer Cover Plate |
| N/A |
| 1 ea. |
| 50.00 |
| 31 |
| Y |
| *Transducer Cover Plate |
| N/A |
| 4 ea. |
| 50.00 |
| 36 |
| N |
| Gate Valve, Flanged |
| 4820-01-435-5898 / 1306 2 1/2IN |
| 1 |
| $1,400.00 |
| 36 |
| N |
| Gate Valve, Flanged |
| 487 1/2 |
| 1 |
| $350.00 |
| 37 |
| N |
| Strainer, Sediment, Duplex |
| 4730-01-627-3047 / ST053025BF11TS |
| 1 |
| $7,100.00 |
| 37 |
| N |
| Strainer, Sediment, Duplex |
| ST053015BT11TS |
| 1 |
| $5,200.00 |
| 41 |
| N |
| Wartsila FSE H74537-02 Major Overhaul Kit (WLP001365-001) |
| NSN: 01-560-3274 |
| 2 ea. |
| 7,680.00 |
*Government-loaned property, which shall be returned to the vessel upon completion of the availability.
**New or refurbished equipment that the Government may provide for installation in place of existing equipment.
***Government-furnished property, which is to be supplied by either the vessel or the C4IT ServiceCenter
Consolidated List of Critical Inspection Items The following is a list of work items, which contain Critical Inspection reports, which the Contractor must complete within the first 25% of the availability contract period (see SFLC Std Spec 0000, paragraph 3.2.6.5 (Inspection report particulars)):
| Work Item |
| Title |
| 3 |
| Hull Plating (U/W Body), Ultrasonic Testing - Tender |
| 4 |
| Hull Plating (U/W Body), Ultrasonic Testing - Barge |
| 5 |
| Voids (Non-Accessible), Leak Test - Tender |
| 6 |
| Voids (Non-Accessible), Leak Test - Barge |
| 9 |
| Propulsion Shafting; Remove, Inspect, and Reinstall |
| 10 |
| Propulsion Shaft Bearings (External), Check Clearances |
| 18 |
| Rudder Assembly; Remove, Inspect And Reinstall |
| 26 |
| U/W Body, Preserve (100%) - Tender |
| 27 |
| U/W Body, Preserve (100%) - Barge |
| 40 |
| Tanks (MP Fuel Service), Clean and Inspect - Tender |
| 41 |
| Propulsion Shaft Seals, Mechanical & Inflatable, Overhaul and Renew |
Principal Characteristics - Tender
75’ WLR (C-Class: CGC MUSKINGUM), INLAND RIVER BUOY TENDER
Physical
| Length overall |
| 75' 5-1/2" |
| Depth |
| 7' 8-1/2" |
| Maximum beam |
| 22' 5" |
| Height of highest projection |
| N/A |
| Full load draft |
| 4' 1 1/8" LCF Draft |
| Full load displacement |
| 135.77 Long Tons SW |
| Shore tie voltage requirements |
| 480V/200amp |
| Frame spacing |
| 1' 6" |
Machinery
| Number of propellers |
| 2 |
| Number of blades |
| 4 |
| Diameter of propeller |
| 48" |
| Pitch |
| 47" fixed |
| RPM |
| 410 |
Principal Characteristics - Barge
130' CGB, Barge
Physical
| Length overall |
| 130' 0" |
| Depth |
| 7' 6" |
| Maximum beam |
| 30' 0" |
| Frame spacing |
| 15" - 30" |
| Full load draft |
| 4’ 3" (LCF Draft) |
| Full load displacement |
| 240.76 Long Tons SW |
00000_0316_FLT
REC_00000_FLT_Commercial Project @ Contractor’ Facility (1212)
General Requirements
1. SCOPE
1.1 Intent. This standard specification invokes general requirements for conducting vessel repairs performed at a commercial contractor’s facility for Coast Guard vessels.
1.2 Term interchangeability. The terms 'Contractor', 'CG Yard', 'NAVSTA EVERETT', 'shipyard', 'Base', and 'Coast Guard Industrial' are used interchangeably in this specification. Where the primary service provider is Coast Guard personnel, references to contractor and other noted descriptors within this specification or within drawings, publications, SFLC Standard Specifications or other commercial and military references are deemed the same as prime service provider.
2. REFERENCES
Coast Guard Drawings
None
Coast Guard Publications
Coast Guard Commandant Instruction (COMDTINST) M10360.3 (series), Coatings and Color Manual
Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General Requirements
Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2014, Welding and Allied Processes
Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2014, Requirements for Preservation of Ship Structures
Other References
None
3. REQUIREMENTS
3.1 General. The Contractor shall conform to all requirements specified in SFLC Std Spec 0000 and in this item, as applicable, during the performance of this availability.
NOTE
The requirements of paragraph 3.1 (General) applies to all work under the scope of this contract, whether explicitly stated in work items or not, and to all other work subsequently authorized by changes, modifications, or extensions to the contract.
3.2 Contractor-provided fire watch personnel. The Contractor shall provide fire watch personnel and equipment.
3.2 Fire watch requirements. The Contractor shall refer to 3.3.1.3 (Fire watch requirements) of SFLC Std Spec 0000, in accomplishing the following task:
· Provide portable fire extinguishers for Coast Guard fire watch personnel. Coast Guard fire watch is in lieu of contractor personnel during the hours of 0800-1600, Monday through Friday, and limited to two Coast Guard fire watch personnel.
· Provide fire watch personnel and fire extinguishers for the duration of the availability period, during and beyond noted Coast Guard fire watch support.
3.3 Preservation requirements. The Contractor shall accomplish all preservation tasks, including touch-ups, in accordance with SFLC Std Spec 6310.
3.3.1 Brand name approval. Ensure that all contractor-furnished coatings are in accordance with SFLC Std Spec 6310, Appendix C (Authorized Coatings for Use on Cutters and Boats).
3.3.2 Coating colors and system color schemes. Ensure that all colors and color coat/paint schemes are in accordance with COMDTINST M10360.3, Chapter 6 (Cutter and Boat Colors Exterior and Interior).
NOTE
Unless a waiver has been granted (in writing) by the KO, deviations from authorized coatings (listed in Appendix C of SFLC Std Spec 6310) and colors and color schemes (provided in Chapter 6 of COMDTINST M10360.3) are strictly prohibited.
3.4 Welding and brazing requirements. The Contractor shall perform all welding and allied processes, and NDI in accordance with SFLC Std Spec 0740.
3.5 Environmental protection requirements. The Contractor shall adhere to the following environmental protection requirements in accordance with the SFLC Stand Spec 0000:
3.5.1 Contractor operated (non USCG) facilities. The Contractor shall provide and maintain environmental protection as defined in SFLC Std Spec 0000 Appendix A, Requirements for Environmental Protection at Contractor Operated (Non USCG) Facilities, as applicable, during the performance of this availability. Contractor shall plan for and provide environmental protective measures to control pollution that develops during normal practice, as well as plan for and provide environmental protective measures required to correct conditions that develop during the project. Contractor shall comply with applicable Federal, state, and local laws, codes, ordinances, and regulations in their entirety. Any reference to a specific portion of a Federal, state, or local law, code, ordinance, or regulation in this or any other item shall not be construed to mean that relief is provided from any other sections of the law, code, ordinance, or regulation.
3.5.2 Test and procedures. The Contractor shall be required to promptly conduct tests and procedures for the purpose of assessing whether operations are in compliance with applicable Environmental Laws. Analytical work shall be done by qualified laboratories; and where required by law, the laboratories shall be certified.
3.5.3 Regulatory notifications. The Contractor shall be responsible for all regulatory notification requirements in accordance with Federal, State and local regulations. In cases where the Coast Guard must also provide public notification, such as storm water permitting, the Contractor must coordinate with the Contracting Officer or COR, and if work is being performed at a USCG Facility, the local Facility Engineer or Engineering Officer. The Contractor shall submit copies of all regulatory notifications to the Contracting Officer and the local Facility Engineer or Engineering Officer prior to commencement of work activities. Regulatory notifications shall be provided for including but not limited to demolition, renovation, National Pollutant Discharge Elimination System (NPDES) defined site work, and remediation of controlled substances such as asbestos, hazardous waste, and lead paint.
3.5.4 Environmental manager. The Contractor shall appoint in writing an Environmental Manager for the project, and shall be responsible for coordinating Contractor compliance with Federal, State, local, and station environmental requirements. The Environmental Manager shall ensure compliance with Hazardous Waste Program requirements, including hazardous waste handling, storage, manifesting, and disposal; implement the Contractors’ Environmental Management Plan; ensure that all environmental permits are obtained, maintained, and closed out; ensure compliance with Storm Water Program Management requirements; ensure compliance with Hazardous Materials including storage, handling, and reporting requirements; as well as coordinate any remediation of regulated substances such as lead, asbestos, and polychlorinated biphenyl (PCB). This may be a collateral position; however the individual must be trained to accomplish the following duties; ensure waste segregation and storage compatibility requirements are met; inspect and manage Satellite Accumulation areas; ensure only authorized personnel add wastes to containers; ensure all Contractor personnel are trained in 40 CFR requirements and individual position requirements; coordinate removal of waste containers; and maintain the Environmental Records binder and required documentation, including environmental permits compliance and close-out.
3.5.5 HW disposal. Contractor shall comply with SFLC Std Spec 0000 Appendix A, Requirements For Environmental Protection At Contractor Operated (Non USCG) Facilities for HW disposal.
3.6 Local Policy. None.
3.7 SFLC standard specification approved changes. The Contractor shall be aware that the following are approved changes to published SFLC 2014 Edition Standard Specifications and supersede published content:
3.7.1 SFLC Standard Specification 6310, Requirements for Preservation of Ship Structures.
3.7.1.1 SFLC Std Spec 6310, page C-2, Section C1.5.1. Change from "lead-containing paint as 0.06%" to "lead-containing paint as 0.009%".
3.7.1.2 SFLC Std Spec 6310, page 4, Section 2 References, Group- Other References. Add “The Society for Protective Coatings (SSPC) Paint Application Guide No. 11, 2008, Protecting Edges, Crevices, and Irregular Steel Surfaces by Stripe Coating”
3.7.1.3 SFLC Std Spec 6310, page Appendix C-6, add "Hempel Hempadur Multi-Strength GF 35870" with FED-STD-595 color "Black/Red" under ANTI-ABRASION COATING, ICE BREAKING CAPABLE VESSELS, <235’.
3.7.1.4 Standard Spec 6310, page Appendix A-7, Under "UNDERWATER (U/W) BODY/BOOT-TOP", Add line Column 1: Option for U/W Body and Boot-Top, Steel Hulls, <154', in Salt Water. Column 2: Blank. Column 3: SSPC-SP 10/NACE NO. 2 using grit conforming to MIL-A-22262 / (1.5-3.5) - or - SSPC-SP WJ-2(M)/NACE WJ-2(M). Columns 4 and 5: Same as "U/W Body and Boot-Top, Aluminum Hull, High Speed (>30 knots)".
3.7.2 SFLC Standard Specification 0000 General Requirements.
3.7.2.1 SFLC Std Spec 0000, paragraph 1.3 ‘Acronyms and term definitions’, page 5, “PCL (Paint Containing Lead)” definition replaced by, “Any paint or coating containing lead in excess of 0.009 percent by weight (1.0 mg/cm2 or 90 ppm). Lead Based Paint (LBP) is an interchangeable term with PCL.”
3.7.2.2 Change Std Spec 0000 paragraph 3.2.4.2.3(QP 1 inspector or tech rep duties) bullet, “Determine when applied coats have sufficiently cured for overcoating or for system service resumption (see paragraph 3.1.19 of SFLC Std Spec 6310 (Critical drying time requirements)).” to “Determine when applied coats have sufficiently cured for overcoating or for system service resumption (see paragraph 3.1.17 of SFLC Std Spec 6310 (Critical drying time requirements)).”
4. NOTES
4.1 QA inspection forms. QA inspection forms (QA-1 thru QA-5), required in SFLC Std Spec 6310 to be completed and submitted during preservation of “critical-coated surfaces”, are provided at the end of this document.
QA-1 - QUALITY ASSURANCE INSPECTION FORM
(PRESERVATION CHECKLIST)
| Vessel Name |
| Hull # |
| Work Item # |
| Work Item Title |
| Location of Work (incl. frame #’s) |
| Area (sqft) |
CHECKPOINT 1 – COATING SYSTEM COMPLIANCE
Ensure all coatings are in compliance with SFLC Std Spec 6310, Appendix C.
CHECKPOINT 2 - PAINT STORAGE
Ensure all coatings are kept at a temperature of 65 to 85°F at all times, unless otherwise specified by the coating mfgr.
CHECKPOINT 3 - AMBIENT CONDITIONS
Ensure surface and surrounding temperatures are each between 50 and 90°F for water-containing coatings, and 35 and 95°F for other coatings, unless otherwise specified by the coating manufacturer(s).
Ensure maximum relative humidity (RH) is as follows, from surface preparations through final curing of topcoat: 50% for tanks, voids, and vent plenum; and 85% for all other areas, unless otherwise specified by manufacturer(s).
Ensure surface temperature is at least 5°F above the dew point, unless otherwise specified by the coating mfgr.
CHECKPOINT 4 - PRE-SURFACE PREPARATION
Remove surface contaminants (soluble salts, loose rust, mud, and marine growth) with low pressure fresh water wash down (maximum 5,000 psi). If oil and grease are present, perform solvent cleaning, as per SSPC SP-1.
Verify equipment setup, blast media, and surface preparation methods match designated test coupon.
CHECKPOINT 5 - SURFACE PREPARATION
Verify environmental conditions (see CHECKPOINT 3).
Ensure cleanliness of prepared surface is as per specification (i.e.: SSPC SP-11, SP-10, SP WJ-2…).
Verify surface anchor profile using ASTM D4417-Methods B or C against SFLC Std Spec 6310. Conduct profile readings at a minimum of 5 locations for the first 1000-sqft area, and 2 locations for each succeeding 1000-sqft area.
Measure soluble salt conductivity in accordance with SSPC-Guide 15. Conduct 5 measurements per each 1000-sqft area (max. threshold: 70 microsiemens/cm for non-submerged surfaces, 30 microsiemens/cm for submerged surfaces).
CHECKPOINT 6 - PRIMER COAT APPLICATION
Verify environmental conditions (see CHECKPOINT 3).
Verify proper mixing and stand-in (induction) times.
Ensure no paint is applied when the temperature is expected to drop to freezing before the paint has dried.
Ensure surfaces are completely dry, unless otherwise allowed by the coating manufacturer(s).
Verify wet film thickness (WFT) at random, to prevent under or over application. Verify final DFT.
Brush out all runs, sags, drips, and puddles.
Perform visual inspection for holidays and other defects.
CHECKPOINT 7 – STRIPE COAT APPLICATION
Verify environmental conditions (see CHECKPOINT 3).
Ensure overcoating window is as per manufacturer’s instructions.
After primer coat (mist coat after inorganic zinc), brush-apply un-thinned coat of same primer paint over edges, weld seams, cut-outs, and areas of complex geometries @ 3-4 mils wet film thickness (WFT).
CHECKPOINT 8 – TOP COAT APPLICATION
Verify environmental conditions (see CHECKPOINT 3).
Ensure overcoating window is as per manufacturer’s instructions.
Verify proper mixing and stand-in (induction) times, as applicable.
Verify wet film thickness at random, to prevent under or over application.
Brush out all runs, sags, drips, and puddles.
CHECKPOINT 9 – FINAL INSPECTION
Verify final system dry film thickness. Conduct 5 sets of 3 readings for each of the first 3 100-sqft areas, followed by 5 sets of 3 readings for each succeeding 1000-sqft area.
Ensure that system cure is in accordance with manufacturer's recommendation for intended service.
Ensure potable water tank exhaust ventilation is maintained continuously from and during coating application through final system cure, to exhaust all solvent to the atmosphere and to prevent solvent entrapment.
For immersion coatings (including tank U/W body), record date and time of the following events:
Final coat application: _____/_____; Return to service or removal from environment controls: _____/_____
CHECKPOINT 10 – RECORD KEEPING
Complete, sign, and submit all provided QA Inspection Forms.
| Name of QP-1/NACE Inspector |
| Signature |
| Cert. # |
| Date / Time |
QA-2 - QUALITY ASSURANCE INSPECTION FORM
(ENVIRONMENTAL READINGS)
| Vessel Name |
| Hull # |
| Work Item # |
| Work Item Title |
Use one sheet for each activity. Record conditions every four hours from before surface preparation to application of final coating system coat.
| DATE & TIME |
| ACTIVITY (Surface preparation, primer coat, barrier coat, top coat, etc…) |
| LOCATION (Frame & Deck, relation to equipment, etc.) |
| TEMPERATURE |
| % REL. HUMID-ITY |
| DEW PT. |
| SURFACE |
| AMBIENT |
| ΔT |
| DP - Surface |
| Name of QP-1/NACE Inspector |
| Signature |
| Cert. # |
| Date / Time |
QA-3a - QUALITY ASSURANCE INSPECTION FORM
(SURFACE PROFILE LOG FOR PROFILE MEASUREMENTS IAW ASTM D4417-METHOD-C)
| Vessel Name |
| Hull # |
| Work Item # |
| Work Item Title |
| Location of Work (incl. frame #’s) |
| Area (sqft) |
| SURFACE PREPARATION METHOD |
| PROFILE ACHIEVED (mils) |
| Min |
| Max |
| Mean |
SSPC-SP-10/NACE No. 2
SSPC-SP WJ-1/NACE WJ-1
SSPC-SP WJ-2/NACE WJ-2
SSPC-SP WJ-3/NACE WJ-3
SSPC-SP WJ-4/NACE WJ-4
SSPC-SP-3
SSPC-SP-11
SSPC-SP-11 (inaccessible area)
Brush-blasting (non-metallic substrate)
Abrasive Manufacturer:
Abrasive Sieve Size:
Place surface profile replica tapes in the spaces provided below, to serve as permanent QA record. Maintain a separate log for each location. When an area is divided into separate sections, maintain a separate log for each section.
Place Surface Profile Replica Tape Here Place Surface Profile Replica Tape Here Place Surface Profile Replica Tape Here
Reading (mils):
Reading (mils):
Reading (mils):
Place Surface Profile Replica Tape Here Place Surface Profile Replica Tape Here Place Surface Profile Replica Tape Here
Reading (mils):
Reading (mils):
Reading (mils):
Place Surface Profile
Place Surface Profile Replica Tape Here Place Surface Profile Replica Tape Here
Reading (mils):
Reading (mils):
Reading (mils):
Place Surface Profile
Place Surface Profile Replica Tape Here Place Surface Profile Replica Tape Here
Reading (mils):
Reading (mils):
Reading (mils):
Place Surface Profile
Place Surface Profile Replica Tape Here Place Surface Profile Replica Tape Here
Reading (mils):
Reading (mils):
Reading (mils):
Mean Mil Reading (IAW ASTM D4417-Method C) for above 15 readings:
| Name of QP-1/NACE Inspector |
| Signature |
| Cert. # |
| Date / Time |
QA-3b - QUALITY ASSURANCE INSPECTION FORM
(SURFACE PROFILE LOG FOR PROFILE MEASUREMENTS IAW ASTM D4417-METHOD-B)
| Vessel Name |
| Hull # |
| Work Item # |
| Work Item Title |
| Location of Work (incl. frame #’s) |
| Area (sqft) |
| SURFACE PREPARATION METHOD |
| PROFILE ACHIEVED (mils) |
| Min |
| Max |
| Mean |
SSPC-SP-10/NACE No. 2
SSPC-SP WJ-1/NACE WJ-1
SSPC-SP WJ-2/NACE WJ-2
SSPC-SP WJ-3/NACE WJ-3
SSPC-SP WJ-4/NACE WJ-4
SSPC-SP-3
SSPC-SP-11
SSPC-SP-11 (inaccessible area)
Brush-blasting (non-metallic substrate)
Abrasive Manufacturer:
Abrasive Sieve Size:
Record measurements taken in the spaces provided below, to serve as permanent QA record. Maintain separate log for each location. When an area is divided into separate sections, maintain a separate log for each section.
Reading (mils):
Reading (mils):
Reading (mils):
Reading (mils):
Reading (mils):
Reading (mils):
Reading (mils):
Reading (mils):
Reading (mils):
Reading (mils):
Mean Reading (mils)
Mean Reading (mils) IAW ASTM DD4417).
| Name of QP-1/NACE Inspector |
| Signature |
| Cert. # |
| Date / Time |
QA-4 - QUALITY ASSURANCE INSPECTION FORM
(SURFACE SOLUBLE SALT CONDUCTIVITY LOG)
| Vessel Name |
| Hull # |
| Work Item # |
| Work Item Title |
| Location of Work (incl. frame #’s) |
| Area (sqft) |
SOLUBLE SALT CONDUCTIVITY Measurements IAW SSPC-GUIDE 15.
| Date |
| Test Locations |
| Conductivity (Microsiemens/CM) |
| Name of QP-1/NACE Inspector |
| Signature |
| Cert. # |
| Date / Time |
QA-5 - QUALITY ASSURANCE DATA FORM
(COATING THICKNESS)
(Use one sheet for each sequence)
| Vessel Name |
| Hull # |
| Work Item # |
| Work Item Title |
| Coating Mfg |
| Product Name |
| Batch # |
| Induction Time |
| Coating System Sequence (Primer/Touchup/3rd Coat, etc.) |
Dry Film Thickness (DFT) Measurements IAW SSPC-PA 2.
| SPOT |
| 1 |
| 2 |
| 3 |
| 4 |
| 5 |
| AVERAGE VALUE |
*BASE METAL READING (BMR) Required, If Magnetic Pull-Off (Type I/Banana) Gauge Is Used.
Location (Frame Reference):
| SPOT |
| 1 |
| 2 |
| 3 |
| 4 |
| 5 |
| Overall Avg. DFT |
| ADJUSTMENTS |
| Avg. BMR |
| Deviation |
| Before Adjustments |
| After Adjustments |
Avg.
Location (Frame Reference):
| SPOT |
| 1 |
| 2 |
| 3 |
| 4 |
| 5 |
| Overall Avg. DFT |
| ADJUSTMENTS |
| Avg. BMR |
| Deviation |
| Before Adjustments |
| After Adjustments |
Avg.
Location (Frame Reference):
| SPOT |
| 1 |
| 2 |
| 3 |
| 4 |
| 5 |
| Overall Avg. DFT |
| ADJUSTMENTS |
| Avg. BMR |
| Deviation |
| Before Adjustments |
| After Adjustments |
Avg.
| Application Method (Airless, Conventional Spray, Rolled) |
| Average DFT |
| Name of QP-1/NACE Inspector |
| Signature |
| Cert. # |
| Date / Time |
11000_0815_FLT
REC_11000_UWHIB_FLT_75 WLR (‘C’ Class: Hulls 75401 – 75405) WORK ITEM 1: Hull Plating (U/W Body), Inspect- Tender
1. SCOPE
1.1 Intent. This work item describes the requirements for the Contractor to inspect/survey the vessel’s Under Water (U/W) hull plating, including U/W appendages and coating system.
1.2 Government-furnished property.
None.
2. REFERENCES
Coast Guard Drawings
Coast Guard Drawing 75C WAGL 0700-025, Rev -, Docking Block Arrangement (‘C’ Class) Coast Guard Drawing 75C WAGL 2200-024, Rev -, Rudder Details (75402-75405)
Coast Guard Publications
Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General Requirements
Other References
ASTM International (ASTM) D4138, 2013, Standard Practices for Measurement of Dry Film Thickness of Protective Coating Systems by Destructive, Cross-Sectioning Means
The Society for Protective Coatings (SSPC), January 2015, Paint Application Specification No. 2 (PA-2), Procedure for Determining Conformance to Dry Coating Thickness Requirements
3. REQUIREMENTS
3.1 General.
3.1.1 CIR.
None.
3.1.2 Tech Rep.
Not applicable.
3.1.3 Protective measures. The Contractor shall furnish and install all protective coverings to seal off and protect all non-affected vessel's components, equipment, and spaces near the work area against contamination during the performance of work. Upon completion of work, the Contractor shall remove all installed protective measures, inspect for the presence of contamination, and return all contaminated equipment, components, and spaces to original condition of cleanliness.
3.1.4 Interferences. The Contractor shall handle all interferences in accordance with SFLC Std Spec 0000, paragraph 3.3.5 (Interferences).
3.2 Inspection. The Contractor shall accompany the Underwater Hull Inspection Board (UWHIB) in the performance of the below inspection tasks, as applicable, using the drawings listed in Section 2 (References) as guidance. The Contractor shall provide the following, to facilitate the UWHIB in assessing the condition of the designated U/W hull components and systems:
· A hull repair supervisor and a marker.
· Temporary staging and other necessary equipment, as applicable, for ensuring safe access to all areas of the U/W hull.
NOTES
1. The COR will convene the UWHIB as soon as possible after the vessel has been dry-docked and before any work (except U/W hull cleaning/wash down) is performed on the U/W hull and appendages.
2. Some of the components and/or systems addressed in this work item may not be applicable to all vessel classes.
3.2.1 Hull plating.
3.2.1.1 The Contractor shall inspect the condition of the hull plating (including thruster tunnel plating, as applicable), for the presence of marine growth, deformation, and any evidence of major corrosion or electrolytic action.
3.2.1.2 The Contractor shall inspect the hull and keel areas, report on the condition of butt-welded seams, doubler plates, lap seams, and for any signs of damaged plating or unusual waviness in the plating.
3.2.2 Sea chests and all other cooling system intake components. The Contractor shall inspect all sea chests, tunnels, hull openings, and grates for general appearance, loose, damaged, or missing grates, loose or missing fasteners, condition of sea strainers and lockwire on bolts, marine growth on grating slots, and any obstructions in the openings that might prevent proper suction and discharge of water.
3.2.3 Rudders. The Contractor shall check general condition, condition around the drain plugs, and check for pitting, if any, on the leading and trailing edges.
3.2.4 Propeller and shaft associated components. The Contractor shall inspect the condition of propellers for signs of corrosion, pitting, erosion, fouling, cracks, dings, and nicks by side and blade; inspect fairwaters, rope guards, shafts, and mechanical seals - look for missing screws, physical damage to the blades, pitting, condition of dunce caps, and condition of securing devices.
3.2.5 Transducers. The Contractor shall check general condition for cuts, cracks, corrosion, and surface defects around the openings. Check transducer securing nuts for tightness, and inspect cables for chafing and other damage.
3.2.6 Zinc anodes.
3.2.6.1 The Contractor shall remove all marine growth and oxide coating from all hull, rudder, shaft strut, sea chest, z-drive, and thruster tunnel zinc anodes, or water jet drives anodes, as applicable, using a light-wire brush.
3.2.6.2 The Contractor shall visually inspect all zinc anodes; check the soundness of mounting strap and stud welds, missing fasteners, and percentage of remaining material.
3.2.7 Coating system inspections. The Contractor shall accomplish the below inspections, in conjunction with the underwater hull inspection conducted by the Underwater Hull Inspection Board (UWHIB). Document the condition found as “Partial - Condition A”, “Partial - Condition B”, or “100%”, as applicable (see 4.1 (Definitions)). Submit a CFR.
NOTE
The following inspections are for determining the existing condition of the coating system for the underwater body surfaces, which are deemed “Critical-coated” surfaces; they must be carried out by a SSPC-QP-1 certified contractor/sub-Contractor or a NACE Inspector – see SFLC Std Spec 0000, paragraph 3.2.4.2 (In-process QC measures for “critical-coated surfaces”).
3.2.7.1 Visual. Perform a visual inspection of the existing U/W body coating system.
3.2.7.2 Dry film thickness (DFT) measurements. Take total 10 DFT measurements of the U/W body coating system, in accordance with SSPC-PA 2.
3.2.7.3 Coating system thickness and scheme inspection. Perform a microscopic observation of precision angular cuts in the coating system film (“Tooke Paint Inspection”), in accordance with ASTM D4138, and measure the total coating thickness and thickness of each individual coat of paint, in addition to identifying/verifying the existing color scheme for each coat of paint comprising the coating system.
NOTE
The Tooke Paint Inspection Gage/Gauge (Plastic) is a precision tool for inspection and thickness measurement (ASTM D4138) of single or multiple coats on any substrate, and for microscopic observation and measurement of substrate and film defects. The gage uses an illuminated 50-power microscope with measuring reticle, and mounts tungsten carbide cutting tips for precise incision of the work surface.
Direct measurement of total coating thickness and thickness of individual coats of paint is a unique capability of the Tooke Paint Inspection Gage/Gauge. Thus, in addition to routine use, it often serves as a “referee” instrument to calibrate indirect or non-destructive thickness measuring instruments.
Other uses include assessment of substrate conditions and coating adhesion, and observation of microscopic cracking, tendency for brittleness, cratering, or other microscopic film symptoms.
3.2.7.3.1 Take a total of four readings in locations designated by the Coast Guard Inspector, and as follows: one each, port and starboard, in the boot-top area; and one each, port and starboard, below the boot-topping.
3.2.7.3.2 Ensure that the repair of all areas affected by the destructive Tooke Gauge inspection is included in the optional repair work item that is activated by the result of the inspection.
4. NOTES
4.1 Definitions.
4.1.1 "Partial – Condition A”: The condition that exists where the substrate is exposed in up to 33% of the entire U/W body.
4.1.2 "Partial - Condition B": The condition that exists where the coating system has incurred damage, but the substrate is not exposed in any location.
4.1.3 "100%”: The condition that exists where more than 33% of the U/W body hull substrate is exposed.
4.2 UWHIB convention. The COR will convene the UWHIB as soon as possible after the vessel has been dry-docked and before any work (except U/W hull cleaning/wash down) is performed on the U/W hull and appendages.
11000_0815_FLT
REC_11000_UWHIB_FLT_130’ Barge (ALL) (1211) WORK ITEM 2: Hull Plating (U/W Body), Inspect - Barge
1. SCOPE
1.1 Intent. This work item describes the requirements for the Contractor to inspect/survey the vessel’s Under Water (U/W) hull plating, including U/W appendages and coating system.
1.2 Government-furnished property.
None.
2. REFERENCES
Coast Guard Drawings
Coast Guard Drawing 130 CGB71-77-085-004, Rev 1, Docking Plan Coast Guard Drawing 130 CGB68 111-001, Rev 3, Hull Details – Bottom & Main Deck Plating and Framing Details Coast Guard Publications
Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General Requirements
Other References
ASTM International (ASTM) D4138, 2013, Standard Practices for Measurement of Dry Film Thickness of Protective Coating Systems by Destructive, Cross-Sectioning Means
The Society for Protective Coatings (SSPC), January 2015, Paint Application Specification No. 2 (PA-2), Procedure for Determining Conformance to Dry Coating Thickness Requirements
3. REQUIREMENTS
3.1 General.
3.1.1 CIR.
None.
3.1.2 Tech Rep.
Not applicable.
3.1.3 Protective measures. The Contractor shall furnish and install all protective coverings to seal off and protect all non-affected vessel's components, equipment, and spaces near the work area against contamination during the performance of work. Upon completion of work, the Contractor shall remove all installed protective measures, inspect for the presence of contamination, and return all contaminated equipment, components, and spaces to original condition of cleanliness.
3.1.4 Interferences. The Contractor shall handle all interferences in accordance with SFLC Std Spec 0000, paragraph 3.3.5 (Interferences).
3.2 Inspection. The Contractor shall accompany the Underwater Hull Inspection Board (UWHIB) in the performance of the below inspection tasks, as applicable, using the drawings listed in Section 2 (References) as guidance. The Contractor shall provide the following, to facilitate the UWHIB in assessing the condition of the designated U/W hull components and systems:
· A hull repair supervisor and a marker.
· Temporary staging and other necessary equipment, as applicable, for ensuring safe access to all areas of the U/W hull.
NOTES
1. The COR will convene the UWHIB as soon as possible after the vessel has been dry-docked and before any work (except U/W hull cleaning/wash down) is performed on the U/W hull and appendages.
2. Some of the components and/or systems addressed in this work item may not be applicable to all vessel classes.
3.2.1 Hull plating.
3.2.1.1 The Contractor shall inspect the condition of the hull plating (including thruster tunnel plating, as applicable), for the presence of marine growth, deformation, and any evidence of major corrosion or electrolytic action.
3.2.1.2 The Contractor shall inspect the hull and keel areas, report on the condition of butt-welded seams, doubler plates, lap seams, and for any signs of damaged plating or unusual waviness in the plating.
3.2.2 Sea chests and all other cooling system intake components. The Contractor shall inspect all sea chests, tunnels, hull openings, and grates for general appearance, loose, damaged, or missing grates, loose or missing fasteners, condition of sea strainers and lockwire on bolts, marine growth on grating slots, and any obstructions in the openings that might prevent proper suction and discharge of water.
3.2.3 Rudders. The Contractor shall check general condition, condition around the drain plugs, and check for pitting, if any, on the leading and trailing edges.
3.2.4 Propeller and shaft associated components. The Contractor shall inspect the condition of propellers for signs of corrosion, pitting, erosion, fouling, cracks, dings, and nicks by side and blade; inspect fairwaters, rope guards, shafts, and mechanical seals - look for missing screws, physical damage to the blades, pitting, condition of dunce caps, and condition of securing devices.
3.2.5 Transducers. The Contractor shall check general condition for cuts, cracks, corrosion, and surface defects around the openings. Check transducer securing nuts for tightness, and inspect cables for chafing and other damage.
3.2.6 Zinc anodes.
3.2.6.1 The Contractor shall remove all marine growth and oxide coating from all hull, rudder, shaft strut, sea chest, z-drive, and thruster tunnel zinc anodes, or water jet drives anodes, as applicable, using a light-wire brush.
3.2.6.2 The Contractor shall visually inspect all zinc anodes; check the soundness of mounting strap and stud welds, missing fasteners, and percentage of remaining material.
3.2.7 Coating system inspections. The Contractor shall accomplish the below inspections, in conjunction with the underwater hull inspection conducted by the Underwater Hull Inspection Board (UWHIB). Document the condition found as “Partial - Condition A”, “Partial - Condition B”, or “100%”, as applicable (see 4.1 (Definitions)). Submit a CFR.
NOTE
The following inspections are for determining the existing condition of the coating system for the underwater body surfaces, which are deemed “Critical-coated” surfaces; they must be carried out by a SSPC-QP-1 certified contractor/sub-Contractor or a NACE Inspector – see SFLC Std Spec 0000, paragraph 3.2.4.2 (In-process QC measures for “critical-coated surfaces”).
3.2.7.1 Visual. Perform a visual inspection of the existing U/W body coating system.
3.2.7.2 Dry film thickness (DFT) measurements. Take total 10 DFT measurements of the U/W body coating system, in accordance with SSPC-PA 2.
3.2.7.3 Coating system thickness and scheme inspection. Perform a microscopic observation of precision angular cuts in the coating system film (“Tooke Paint Inspection”), in accordance with ASTM D4138, and measure the total coating thickness and thickness of each individual coat of paint, in addition to identifying/verifying the existing color scheme for each coat of paint comprising the coating system.
NOTE
The Tooke Paint Inspection Gage/Gauge (Plastic) is a precision tool for inspection and thickness measurement…
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