Attachment 2_ Work Specification.doc

USCGC MAPLE (WLB 207)

SPECIFICATION FOR UNPLANNED DRYDOCK REPAIRS

FY2021

Developed By: Richard C Brady (Rev-0, 6 January 2021)

TABLE OF CONTENTS

iii

Revisions Record iv

Consolidated List of References v

Consolidated List of Government-furnished Property vi

Consolidated List of Critical Inspection Items vii

Principal Characteristics

General Requirements

WORK ITEM 1: Propeller Blade, Removal and Installation

WORK ITEM 2: Drydock

WORK ITEM 3: Temporary Services, Provide - Cutter

WORK ITEM 4: Towing Services, Provide

WORK ITEM 5: Sea Trial Performance, Support, Provide

WORK ITEM 6: Controllable Pitch Propeller Hub, Renewal

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.

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 the 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 – from links located on the SFLC website. Commercial sites provide access to their respective documents.

COAST GUARD DRAWINGS

Coast Guard Drawing 225B WLB 801-001, Rev A, Lines and Offsets Coast Guard Drawing 225B WLB 801-003, Rev -, Curves of Forms and Cross Curves of Stability Coast Guard Drawing 225B WLB 801-006, Rev G, Docking Drawing

COAST GUARD PUBLICATIONS

Coast Guard Commandant Instruction (COMDTINST) M10360.3, Jun 2006, Coatings and Colors Manual Coast Guard Commandant Instruction (COMDTINST) M16672.2D, Mar 1999, Navigation Rules, International-Inland Coast Guard Technical Publication (TP) 3524, 07-JAN-97, Manufacturer's Instruction Book-SWBS Group(s) 243-262 Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2020, General Requirements Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2020, Welding and Allied Processes Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2020, Requirements for Preservation of Ship Structures Surface Forces Logistics Center Standard Specification 8634 (SFLC Std Spec 8634), 2020, Drydocking Surface Forces Logistics Center Standard Specification 8635 (SFLC Std Spec 8635), 2020, Temporary Services

OTHER REFERENCES

Commercial Item Descriptions (CID) A-A-59323, Rev A; Cloths, Cleaning, Low-Lint 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.

($/Unit)

*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)):

Principal Characteristics

225' WLB (B-CLASS)

Physical

Hull

Frame spacing

Machinery

Tank CAPACITIES

00000_0220_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), 2018, General Requirements Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2018, Welding and Allied Processes Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2018, 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 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 NDE 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 2018 Edition Standard Specifications and supersede published content:

None.

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)

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 mfg.

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 mfg.

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.

QA-2 - QUALITY ASSURANCE INSPECTION FORM

(ENVIRONMENTAL READINGS)

Use one sheet for each activity. Record conditions every four hours from before surface preparation to application of final coating system coat.

| DP - Surface |

QA-3a - QUALITY ASSURANCE INSPECTION FORM

(SURFACE PROFILE LOG FOR PROFILE MEASUREMENTS IAW ASTM D4417-METHOD-C)

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:

QA-3b - QUALITY ASSURANCE INSPECTION FORM

(SURFACE PROFILE LOG FOR PROFILE MEASUREMENTS IAW ASTM D4417-METHOD-B)

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).

QA-4 - QUALITY ASSURANCE INSPECTION FORM

(SURFACE SOLUBLE SALT CONDUCTIVITY LOG)

SOLUBLE SALT CONDUCTIVITY Measurements IAW SSPC-GUIDE 15.

QA-5 - QUALITY ASSURANCE DATA FORM

(COATING THICKNESS)

(Use one sheet for each sequence)

Dry Film Thickness (DFT) Measurements IAW SSPC-PA 2.

*BASE METAL READING (BMR) Required, If Magnetic Pull-Off (Type I/Banana) Gauge Is Used.

Location (Frame Reference):

Avg.

Location (Frame Reference):

Avg.

Location (Frame Reference):

Avg.

24560_ JPH_1020_225

WORK ITEM 1: Propeller Blade, Removal and Installation

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to remove and install the four propeller blades on the Controllable Pitch Propeller. All four (4) blade seals shall be renewed.

1.2 Government-furnished property.

($/UNIT)

(0-3-2-11)

(2-472 KA174-75)

*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.

2. REFERENCES

Coast Guard Drawings None Coast Guard Publications Coast Guard Technical Publication (TP) 3524, Jan 1997, Manufacturer's Instruction Book-SWBS Group(s) 243-262 Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2020, General Requirements Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2020, Welding and Allied Processes Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2020, Requirements for Preservation of Ship Structures Other References Commercial Item Descriptions (CID) A-A-59323, Rev A; Cloths, Cleaning, Low-Lint

3. REQUIREMENTS

3.1 General.

3.1.1 CIR.

None.

3.1.2 Tech Rep. The Contractor shall provide the services of an OEM authorized/ licensed Tech Rep for the Rolls Royce CPP System to accomplish the following on site:

· Provide manufacturer's proprietary system/ equipment information, software, and tools.

· Assist with and ensure compliance with manufacturer's procedures and standards during disassembly, inspection, repair, modification, calibration, and reassembly of the equipment/system.

3.1.2.1 Ensure the Tech Rep is an OEM Certified Representative for the system/equipment stated above and demonstrated on their résumé.

3.1.2.2 Submit the name and résumé of the Tech Rep to the COR at the Arrival Conference.

3.1.3 Protective measures, general. 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.

3.1.3.1 Protective measures, hydraulic system(s). Maintain existing hydraulic system cleanliness and take all necessary precautions to prevent the introduction of contaminants into the hydraulic system. Immediately after disconnecting or removing components from the hydraulic system, seal all openings to the rest of the system using caps for externally threaded connection points, bolt-on blanks, or taped-on discs/covers made of durable plastic or sheet-metal that is no less than 1/16-inch thick.

Note Be aware that plastic bags may be used only when arrangement or configuration prevents the use of the other sealing methods specified above.

3.1.3.1.1 Cleanliness is of prime importance. If cleanliness is not maintained at all times, work may be suspended by the Contracting Officer on the advice of the Technical Representative.

3.1.3.1.2 Only workers with clean clothes and tools shall be assigned to work around the propeller’s open hub mechanism.

3.1.3.1.3 All lifting equipment, chain blocks, rope, nylon slings, and other equipment/tools shall be washed clean prior to use on the CPP system to prevent dirt from falling into the system.

3.1.3.1.4 Any o-ring (or custom o-ring made out of stock) that is cut and then requires rejoining shall not be glued back together, but rather joined together by a vulcanizing process. This vulcanizing requirement has come about due to a rash of failed glued joints that required emergency dry-docking of numerous Cutters. On a case by case basis, and only on non-underwater sealing joints, and if supported by OEM, the Contractor may appeal this vulcanizing requirement. Coast Guard reserves the sole right to approve or disapprove such appeals.

3.1.4 Interferences. The Contractor shall handle all interferences in accordance with SFLC Std Spec 0000, paragraph 3.3.5 (Interferences).

NOTE

Coast Guard personnel will operate all shipboard machinery and equipment.

3.2 Operational test – initial inspection. Prior to commencement of work, the Contractor shall witness Coast Guard personnel perform an initial operational test of CPP system. The system has a known underwater leak assumed to originate from a blade seal.

3.2.1 Contractor shall provide oil collection provisions during this necessary operational test. A small quantity of oil (containable) is expected to escape from the propeller hub.

3.2.2 Identify and confirm source of leakage. The Contractor shall visually inspect the surface of hub for any sign of damage, e.g. cracks. During disassembly pay particular attention to those areas after discovery. Submit a CIR.

3.3 CPP system draining. The Contractor shall perform the following tasks:

3.3.1 Oil sampling. Within the first four hours of drydocking, the Contractor shall remove the plug item 19 of Figure 7-2, TP-3524, and Section 245 and draw two samples of the oil from each hub. Replace item 19 after sample is drawn. The Contractor shall provide a sample from the hub to the Coast Guard Inspector. The other sample from each hub shall be sent out for spectrographic analysis and a report submitted to the Coast Guard Inspector of the findings within 72 hours of drawing the sample.

3.3.2 The Contractor shall drain the CPP System per procedure 6-5.1 “Draining the Hydraulic Oil” of TP-3524, Section 245. Figure 6-1 “Draining, Charging, Testing” of same Tech Pub illustrates draining setup. Approximately 60 gallons of oil is contained within the hub.

3.3.3 The Contractor shall drain all CPP hydraulic system fluid from head tank (15 gallons) and sump tank (200 gallons).

3.3.3.1 After the CPP head tank and sump tank have been drained, open and clean to dry bare metal removing all condensation residue using new low-lint cleaning cloths, conforming to CID A-A-59323, Type II. The tanks shall be inspected and verified by the Coast Guard Inspector prior to closing. All gasket material shall be renewed.

3.3.4 Used oil from the CPP system (approximately 275 gallons) shall be disposed of in accordance with all applicable local, state, and federal laws and regulations.

3.4 Blade Removal, Installation, and Seal Renewal. The Contractor shall perform the following tasks.

3.4.1 Renew all the blade seals on the propeller hubs. Ensure that hubs and blades are adequately marked to identify original blade locations, which will ensure each blade is returned to the same hub port in which it was removed. Mark hub and blades if existing marks are not adequate. The Coast Guard Inspector will verify the cleanliness of the area including staging and rigging prior to the commencement of disassembly. Renewal shall be as follows:

3.4.2 Rotate the propeller so that the propeller blade to be removed is in the position specified by the Technical Representative.

3.4.3 Clean all bolt heads and the spaces between the bolt shoulder and the blade palm to insure complete cleanliness. This will prevent dirt from falling into the crank ring threads while removing the bolts. Blow out with air.

NOTE

Above paragraph is a very important step and may prevent the galling of blade bolts during removal.

3.4.4 Remove each propeller blade per procedure 6-6.1 “Propeller Blade Removal” of CG Tech Pub 3524, Section 245.

3.4.4 The Contractor shall remove each propeller blade per procedure 6-6.1 “Propeller Blade Removal” of TP-3524, Section 245.

Note Coast Guard has obtained (and will supply as GFP) the Blade Lifting Arrangement.

3.4.5 The Contractor shall use exclusively the blade lifting rig as shown in Figure 7-15 of TP-3524, Section 245. “Blade Lifting Arrangement” to remove and reinstall blades. At the completion of drydock, the lifting rig will be returned to the Coast Guard.

3.4.5.1 Remove, by wrench, one bolt at a time. Use the wrench with extreme care when encountering hard spots to prevent/mitigate seizing or thread damage. Mark each blade bolt hole where the bolt was not smoothly removed for further investigation and for cleaning with a tap. When a bolt is removed cover the opening with a clean rag. Verify each bolt is marked to ensure it will be reinstalled in same hole.

3.4.5.2 Lift each blade from the hub with caution to ensure the blades are lifted straight up. Ensure the blade does not hit anything during rigging. The most critical area for damage is the o-ring seal area of the palm of blade. Immediately cover the crank ring with clean lint free rags to contain residual oil leakage and prevent damage or contamination.

3.4.5.3 Once a blade is removed, each opening shall be protected whenever unattended by wrapping with plastic sheets and taping seams.

3.4.6 Safeguard the blades until reassembly on the hub.

3.4.7 Clean all mating surfaces on the blade and the hub. Clean the blade palm on the inner-side (between hub and blade), as well as the o-ring surface. Make sure all salt residue is removed but with care ensuring the o-ring contact area is not scratched. Clean the blade bolt landings and inspect for damage.

3.4.7.1 Ensure the blade’s sealing surface is undamaged and of proper finish. Propeller blade’s sealing surfaces shall be 16 micro inches or better. It has been reported that hand stoning is required to obtain the 16RMS surface finish.

3.4.8 Clean blade bolts and test for cracks using dye penetrate. Inspect mating surfaces of the bolts and the blade. Perform all NDT in the presence of CG inspector. Fluorescent penetrate examination is acceptable.

3.4.9 With the Coast Guard Inspector present, a properly sized Contractor furnished tap shall be used to chase those blade bolt’s threaded holes (located in the crank ring) which had difficult to remove bolts, show signs of thread damage, or which the technical representative otherwise desires to be cleaned. Extreme care must be exercised in performing this evolution, so as not to damage (i.e. cross thread) threaded hole. The purpose is to clean any debris from between threads, not to remove metal.

3.4.10 Remove the lint free rags from crank ring, remove old seal ring and clean the surface making sure nothing drops into the thread holes. Inspect the threads for damage and contamination.

3.4.10.1 In the presence of the Coast Guard Inspector, make a visual inspection of the condition of the entire hub and record any findings/observations in the form of a condition found report. Contractor shall also assist the technical representative, as necessary, in inspecting and assessing propeller condition. This assistance may involve supplying calibrated measuring tools, strongbacks, chainfalls, and manpower. Inspection shall measure “G,” “J”, and any other hub clearance listed in Figure 6-2 “Hub Clearance” of CG Tech Pub 3524, Section 245. The purpose of inspection is to assess the wear condition of hub internals and to identify any impending wear problems/trends.

NOTE

An example of inspection data collected on other CPP systems that may also be applicable here might be a thrust measurement of each blade while the blade port is at Top Dead Center (TDC). A couple of blade bolts would be threaded in then the crank is pulled up (via the blade bolts) with lifting gear (“thrust out” position) and the difference in measurement between normal resting “thrust in” would be then determined.

3.4.11 The Contractor and Coast Guard Inspector shall jointly inspect new Government furnished blade sealing o-rings (item #43 of Figure 7-1) of TP-3524, Section 245 to ensure they are undamaged and cure date has not expired. Install the o-ring (item #43).

3.4.12 While the blades are removed and prior to propeller reassembly, polish all four (4) propeller blades to 63 RMS finish. Dress down edges of blade tips smooth. Ensure they are free of burrs and scratches. Report any discovered blade damage in a CFR.

NOTE

Polishing shall be performed as soon as practical after blade removal to allow maximum time to rectify any discovered indications. Polishing shall be performed only by qualified individuals. Only minimal metal shall be removed during polishing and the leading edge contour and blade profile shall not be altered.

3.4.13 Dye penetrant test the entire removed blades (after polishing and prior to reinstallation) from the palm to the tip on both pressure and suction sides. Dye penetrant testing shall be performed by a qualified inspector in accordance with NAVSEA T9074-AS-GIB-010/271. Perform all NDT in the presence of CG inspector.

3.4.14 Reinstall the propeller blades per procedure 8-6.5.2 “Blade Installation” of CG Tech Pub 3524, Section 245.

3.4.14.1 The below Table is a list of known Contractor furnished parts to be renewed (regardless of damage) with contractor furnished the following by Contractor. The below Table represents the minimal and is not warranted to be complete. Table is not guaranteed to be all inclusive for all parts, materials, consumables required to perform the work item.

TABLE 1 – List of PArts to be Renewed

3.4.14.2 Set the propeller blade on the crank ring, ensure no dirt is allowed to fall into hub during this evolution from anywhere.

3.4.14.3 Try each bolt (uncoated) in its original holes, using markings from paragraph 3.5.5.1, to ensure it threads in and out easily. Then remove the bolt and coat it and the bolt landing with DEPAC antiseize or equivalent. For each bolt install the two, Contractor furnished blade bolt o-rings (item #42 of Figure 7-1 of CG Tech Pub 3524, Section 245). Thread each blade bolt into its hole by wrench only until it bottom out. If there is any resistance, the bolt shall be removed and the threads inspected for damage or dirt.

3.4.14.4 Tighten blade bolts in the presence of CG Inspector and Technical representative. Incrementally tighten blade bolts to 5,444 ft-lbs in the accordance with paragraph 8-6.5.2.i of CG Tech Pub 3524, Section 245.

3.4.14.5 If pressure testing of blades is not scheduled to occur within 24 hours, RTV shall be re-applied to the gap between blade palm and hub to protect new blade seals from contamination.

3.5 System Restoration. The Contractor shall perform the following tasks.

3.5.1 With the CPP system fully reassembled (including all other related CPP work in other Work Items) fill the system with new Mobil DTE 10 Excel 46 hydraulic oil (approximately 330 gallons) per procedure 6-5.2 “Charging the system with Oil” of CG Tech Pub 3524, Section 245. Figure 6-1 “Draining, Charging, Testing” of same Tech Pub illustrates draining setup.

3.5.2 Fluid shall be filtered through a non-bypass filter assembly, as specified above in paragraph 3.1.5, prior to entering the system.

3.5.2.1 Renew the 3000 psi (H.P. filter item #16, of Figure 7-7) duplex filter elements per procedure 4-3.5.1 of CG Tech Pub 3524, Section 245. Renew any gaskets, seals, or o-rings disturbed.

3.5.2.2 Renew the 200 psi (L.P. filter item #15, of Figure 7-7) duplex filter elements and 4-3.5.2 of CG Tech Pub 3524, Section 245. Renew any gaskets, seals, or o-rings disturbed.

3.5.2.3 Renew the reservoir return line filter. This is item #30, of Figure 7-12. The return filter shall be 40 micron size, not the 10 micron previously used. The 10 micron size was found to cause an undesirable increase in hub back pressure. One Parker Hannifan, Part Number 932562, 40 micron filter will be required. Renew any gaskets, seals, or o-rings disturbed.

3.6 Pressure Testing And Operational Testing . The Contractor shall perform the following tasks.

3.6.1 Remove any RTV that may have been installed over the gap between blade palm and hub before testing and undocking.

3.6.2 With system restored pressure test the propeller per procedure 6-5.3.1 “Pressure Test the Propeller Hub and Shafting System.” The system shall be inspected for oil leaks while full pressure is maintained. Provide staging for access to hub bolts. The Coast Guard Inspector will witness the operational test.

3.6.3 After successful pressure test, test the CPP system per procedure 6-5.3.2 “Operational Test of CPP System” of CG Tech Pub 3524, Section 245.

3.7 Flushing. After successful pressure test and with all test equipment removed, flush CPP system per procedure 6-2.1 “Flushing the CPP System” of CG Tech Pub 3524, Section 245.

3.8 Operational test – post repairs. After successful pressure test, the Contractor shall test the CPP system per procedure 6-5.3.2 “Operational Test of CPP System” of CG Tech Pub 3524, Section 245.

NOTE

Coast Guard personnel will operate all shipboard machinery and equipment.

3.8.1 After operational testing, the Contractor shall ensure head tank is at full level, then inspect the sump tank oil level and add new/clean oil if required to bring level to full mark.

3.9 CPP Final Adjustments. The Contractor shall remove any protection (e.g. tape) that may have been installed over the gap between blade palm and hub before any system operation and before undocking.

3.9.1 The Contractor shall perform procedure 4-3.6 “Verify Proper Operation of Vented and Main Relief Valve” of CG Tech Pub 3524, Section 245.

3.9.2 The Contractor shall adjust the pitch scale for design pitch position per procedure 6-3.1 “Dry-dock Adjustment Procedure” of CG Tech Pub 3524, Section 245.

3.9.3 The Contractor shall, after undocking while afloat, adjust the pitch scale for full ahead pitch position per procedure 6-3.2 “Afloat Adjustment Procedure” of CG Tech Pub 3524, Section 245.

3.10 Sea Trials. The Contractor shall perform sea trial in accordance with Definite Item “Sea Trial Performance, Support, Provide”. During trials, the Cutter will be run at various speeds and conditions, both ahead and astern. The Contractor and OEM Technical Representative shall be responsible for correcting any leakage, vibration, noise, abnormal pressures, and/or excessive temperatures that arise in the CP propeller system as a consequence of the work under this specification. During trials, the Coast Guard will operate the Cutter and all equipment at low, mid, and high shaft speeds, and at full load. During sea trials (while underway), perform procedure 4-3.7 “Verify Proper Operation of the Unloading Valve” of CG Tech Pub 3524, Section 245.

3.10.1 After sea trials, the Contractor shall ensure head tank is at full level, then inspect the sump tank oil level and add new/clean oil if required to bring level to full mark. This will be important for future reference should loss of system oil be suspected.

4. NOTES

4.1 Coast Guard personnel will operate all shipboard machinery and equipment during all tests.

86340_0520_FLT

REC 86340_FLT_225B WLB ‘B’ Class (ALL) (0920) WORK ITEM 2: Drydock

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to drydock the vessel, undock the vessel, and perform various drydocking-related tasks.

1.2 Government-furnished property.

($/UNIT)

*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 Service Center.

2. REFERENCES

Coast Guard Drawings Coast Guard Drawing 225B WLB 801-001, Rev A, Lines and Offsets Coast Guard Drawing 225B WLB 801-003, Rev -, Curves of Forms and Cross Curves of Stability Coast Guard Drawing 225B WLB 801-006, Rev G, Docking Drawing Coast Guard Publications Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2020, General Requirements Surface Forces Logistics Center Standard Specification 8634 (SFLC Std Spec 8634), 2020, Drydocking Other References None.

3. REQUIREMENTS

3.1 General.

3.1.1 CIR. The Contractor shall submit a CIR for the inspections listed in the following paragraph(s):

· 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). Known interferences include, but are not limited to the following:

· Anchor assembly

· Load conditions

· U/W body appendages

3.2 Key personnel. The Contractor shall determine key personnel and require their presence during all drydocking phases as required by SFLC Standard Spec 8634. Submit list of key personnel to the COR.

3.3 Docking and undocking. The Contractor shall perform drydock and undock in accordance with SFLC Std Spec 8634, using Coast Guard Drawing 225B WLB 801-001, 225B WLB 801-003, and 225B WLB 801-006 for guidance.

3.4 Cutter conditions. The Contractor shall use the Full Load Condition values listed below all in inches, for purposes of performing Pre-Award calculations as described in Appendix A (Requirements for Calculations) of SFLC Std Spec 8634.

· Displacement (LT SW): 1934.96

· VCG (FT ABL): 17.89

· LCG (FT aft FP): 106.04

· LCF (FT aft FP): 107.91

· Trim (FT by stern): 0.69

· MT1” (LT-FT/Inch): 212.7 APM: Identify and insert the vessel blocking position number (POS #) in the blocking table below if not provided.

3.4.1 Blocking. The Contractor shall facilitate docking the vessel in designated block position by arranging keel and side blocks and ensuring minimum block heights as shown on the vessel's docking plan.

Table 1 – Blocking

AWARENESS

*Note: Last Pos. was Pos. 1 during MMA.

Forward Scan Sonar Dome (FSSD) location shall not interfere with keel block.

Speed log transducer:

Particular attention shall be paid when setting keel blocks to ensure clearance around the speed log transducer and cover plate at Frames 16-20.

NOTE

The Forward Scan Sonar Dome (FSSD) is usually found between Frames 62 and 63 or between Frames 63 and 64

3.5 Pre-award calculations. The Contractor shall provide to the KO a set of pre‑award calculations, as described in SFLC Std Spec 8634 Appendix A.

3.5.1 Provide vertical side/bilge block offsets for any side blocks placed in a location where vertical offsets are not already defined by the docking plan.

3.5.2 Submit an alternate blocking arrangement, as part of the pre-award calculation submission, to compensate for any changes from the docking plan.

3.5.2.1 If the alternate blocking arrangement interferes with U/W hull plate inspection or 100% preservation of U/W body surfaces required under separate work items in this specification package, the Contractor shall include a plan of how inspection/preservation will be accomplished. Plan shall include any modifications necessary to the prescribed docking plan including removing, shifting, repositioning blocks, or fleeting the vessel at no additional cost to the Government.

NOTE

1. The USCG has established several approved alternate docking plans for each vessel-class, to facilitate complete access to the entire U/W body structure, for periodic comprehensive inspection and/or 100% preservation. This inspection and preservation pattern and periodicity is a configuration management concern that is a vital requirement of the contract. Intention to deviate from these plans (fewer blocks, block spacing, additional blocks, etc) is to be identified on pre-award calculations (Paragraph 3.5.2); an alternate docking plan and mitigation strategy will be provided to maintain preservation and inspection configuration.

2. Pre-award calculations may be deemed unsatisfactory - and may adversely affect contract award if they are submitted with the following detrimental factors:

a. No methods have been proposed that meet the requirements for the specified docking plan.

b. Proposed block shifting or fleeting risk-mitigating plan may result in delays in period of performance.

c. Proposed alternate docking plan violates USCG configuration management policies.

3.6 Unplanned availability: Underwater body cleaning-removal of marine growth. The Contractor shall accomplish the work in this paragraph in lieu of the work described in SFLC Std Spec 8634 paragraphs 3.5.4.1 and 3.5.4.2. Within four hours after the vessel has been docked, the Contractor shall start cleaning the entire underwater hull from the upper edge of the boot top down, including sea chest gratings, sea chest interiors, fairwaters, rope guards, rudder, shaft strut, z-drive, thruster tunnel, and zinc anodes, as applicable. The Contractor shall remove all marine growth, fouling, salt, and dirt from the underwater hull by High Pressure Fresh Water Wash, using a minimum pressure at the nozzle of 3,500 psi and maximum pressure of 7,000 psi. Complete the hull cleaning before marine growth hardens. Removal of gratings is not required.

WARNING

Do not use chemical additives in the freshwater wash. Take extreme care to avoid damaging or removing existing intact underwater body coating.

3.7 Fuel offloading. The Contractor shall be aware that fuel offloading is not mandatory to drydock the vessel.

3.8 Fleeting. Not required.

4. NOTES

4.1 Arrival conditions. The COR will advise the Contractor of the actual tank and draft readings when the vessel arrives, and will discuss with the Contractor any liquid loading changes necessary.

86350_0520_FLT

REC_86350_FLT_225B WLB ‘B’ Class (ALL) (0813) WORK ITEM 3: Temporary Services, Provide - Cutter

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to provide temporary services to the Cutter, during the performance of this availability.

1.2 Government-furnished property.

None.

2. REFERENCES

Coast Guard Drawings None Coast Guard Publications Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2020, General Requirements Surface Forces Logistics Center Standard Specification 8635 (SFLC Std Spec 8635), 2020, Temporary Services Other References None

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).

APM/ A-Team Note:

1. Select the desired Temporary Logistics from the list provided. Select “Y” or “N”, as applicable in Table. Provide quantities, wherever required in Tables 1, 2, and 3.

2. If vessel is going to the CG Yard, DO NOT INCLUDE Parking. Cutter should request parking spaces in their Arrival LOGREQ.

3. Determine if Duty Section berthing is needed, for how many personnel, and whether it is for the duration of the availability. This is a separate requirement and should not be confused with “Provide Temporary Berthing”, which may be a separate item in the spec package, or under a separate contract outside of this package.

4. Verify specific storage needs (e.g. Life rafts stored in Dry Stores, etc.).

5. Verify Electrical Capacities as defined in SFLC Std Spec 8635 Table III. For cutters with electrical service capability for 2x400A, 3x400A and/or 4x400A…