NORTHLAND (WMEC 270A) DS FQ2 CNJ 26R0.doc

USCGC NORTHLAND (WMEC 904)

SPECIFICATION FOR DOCKSIDE REPAIRS

FY2026

Developed By: Celestin Jules (Rev-0, 6 February 2026)

TABLE OF CONTENTS

iiiRevisions Record ivConsolidated List of References vConsolidated List of Government-furnished Property viConsolidated List of Critical Inspection Items viiPrincipal Characteristics

8General Requirements

18WORK ITEM 1: Helo Talon Grids, Inspect and Test

22WORK ITEM 2: Decks, Helicopter Operating Areas, Preserve

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 901 WMEC 186-003, Rev-, Helo Lndg Grid Fdns & Struct Mod 01 Lvl Coast Guard Drawing 901 WMEC 634-002, Rev-, C&A, Pnt, Dk Covrg & Insul Mod Helo Securing Grid Instl Coast Guard Drawing 901 WMEC 801-004, Rev L, General Arrangement 01 Level

COAST GUARD PUBLICATIONS

Coast Guard Commandant Instruction (COMDTINST) M10360.3, Jun 2006, Coatings and Colors Manual Coast Guard Technical Publication (TP) 3368, Jun 2020, Talon Helicopter Landing Grid - Type 18-22-01 Multiple Class Cutters Fire Prevention and Response Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2022, General Requirements Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2022, Welding and Allied Processes Surface Forces Logistics Center Standard Specification 5000 (SFLC Std Spec 5000), 2022, Auxiliary Machine Systems Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2022, Requirements for Preservation of Ship Structures

OTHER REFERENCES

ASTM International (ASTM) D5363, 2016, Standard Specification for Anaerobic Single-Component Adhesives (AN) Code of Federal Regulations (CFR) Title 29, Part 1915, Occupational Safety and Health Standards for Shipyard Employment MIL-PRF-16173, 2017, Corrosion Preventive Compound, Solvent Cutback, Cold-Application MIL-PRF-24667C, March 2018, Coating System, Non-Skid, for Roll, Spray, or Self-Adhering Application Naval Air Warfare Center (NAVAIR) Drawing 621055, Rev G, Visual Landing Aids Installation WMEC-270 Class Ships 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 3.2.6.1.4 (Inspection report particulars)):

Principal Characteristics 270' WMEC (A-Class)

Physical

Depth molded, main deck amidships 01 level amidships 23' 6" 31' 4"

Highest projection above baseline *height approximated ≈ 110' 0"

Machinery

8 shots of chain each

Tank CAPACITIES

00000_0725_FLT

REC_00000_FLT_Commercial Project @ CG Facility (0121) General Requirements

1. SCOPE

1.1 Intent. This standard specification invokes general requirements for conducting vessel repairs performed by commercial contractors at a Coast Guard 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), 2022, General Requirements Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2022, Welding and Allied Processes Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2022, Requirements for Preservation of Ship Structures Other References Code of Federal Regulations (CFR) Title 29, Part 1915, Occupational Safety and Health Standards for Shipyard Employment

3. REQUIREMENTS

3.1 General. The Contractor must conform to all requirements specified in SFLC Std Spec 0000 and in this item, as applicable, during the performance of this availability. The requirements in this WI applies to all work under the scope of this contract, whether explicitly stated in all following 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 must 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 must 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. The Contractor must obtain a written KO authorization to deviate from any coatings required in SFLC Std Spec 6310 Appendix C before work.

3.3.3 In-process quality control measures. The Contractor must abide by all the safety, preservation, and quality control requirements specified in SFLC Std Spec 0000, paragraph 3.2.4.2 (In-process QC measures for “critical-coated surfaces”).

3.3.3.1 Quality control requirements. The Contractor must abide by the following when performing preservation related inspections. The following measurements must be randomly spaced throughout for the purposes of providing a representation of the entire prepared or coated surface.

3.3.3.1.1 Surface profile measurements. One surface profile measurement must be taken for every 200 square feet for the first 1000 square feet; for each additional 500 square feet or less, one profile measurement must be taken. Profile measurements must be taken in accordance with SFLC Std Spec 6310, paragraph 3.1.8.3 (Surface profile measurements). A “measurement” for surface profile is defined as follows:

· ASTM D4417, Method B: One profile measurement is the average (mean) of 10 individual readings.

· ASTM D4417, Method C: One profile measurement is the average (mean) of 2 individual readings.

3.3.3.1.2 Soluble salt conductivity measurements. 5 conductivity measurements must be taken every 1000 square feet. For submerged (immersed) applications conductivity measurements must not exceed 30 microsiemens/cm. For non-submerged (non-immersed) applications conductivity measurements must not exceed 70 microsiemens/cm. If a conductivity check fails, clean the surface in accordance with SFLC Std Spec 6310, paragraph 3.1.8.5 (Soluble salt removal).

3.3.3.1.3 Coating thickness measurements. Three area measurements must be taken for the first 1000 square feet; for each additional 1000 square feet, perform an additional area measurement. A “measurement” for coating thickness is defined as follows:

· SSPC-PA 2 defines an area measurement as 5 separate spot measurements randomly spaced throughout a 100 square foot area.

· SSPC-PA 2 defines a spot measurement as 3 gage readings and each new gage reading the probe must be moved to a new location within a 1.5-inch diameter circle defining the spot.

3.4 Welding and brazing requirements. The Contractor must perform all welding and allied processes, and NDE in accordance with SFLC Std Spec 0740.

3.5 Environmental protection requirements. The Contractor must adhere to the following environmental protection requirements in accordance with the SFLC Stand Spec 0000:

3.5.1 USCG facilities. The Contractor must provide and maintain environmental protection as defined in SFLC Std Spec 0000 Appendix B, Requirements for Environmental Protection at USCG Facilities, during the performance of this availability. Contractor must 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 must 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 must not be construed to mean that relief is provided from any other sections of the law, code, ordinance, or regulation.

3.5.1.1 USCG Generator status. The activity Generator Status for the Coast Guard Facility is Large Quantity Generator (LGQ).

3.5.1.2 Plans and permits. The CG Facility has unit specific permits including the following:

· Spill Prevention Control and Countermeasures (SPCC) Plan: Unit has a SPCC Plan which requires certain unit-specific procedures be followed for the storage, inspection, and transfer of petroleum products in containers 55 gallons or greater.

· National Pollutant Discharge Elimination System (NPDES) Storm Water (SW) Permit: Unit has an NPDES SW permit which requires unit-specific procedures be followed for the storage and inspection of equipment and materials which may contribute contaminants to storm water discharges.

· Air Emission Permit: Unit has an Air Emission Permit which requires unit-specific procedures be followed for the emissions of VOCs and hazardous air pollutants.

3.5.2 Test and procedures. The Contractor is required to promptly conduct tests and procedures for the purpose of assessing whether operations are in compliance with applicable Environmental Laws. Analytical work must be done by qualified laboratories; and where required by law, the laboratories must be certified.

3.5.3 Regulatory notifications. The Contractor is 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 must 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 must 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 must appoint in writing an Environmental Manager for the project, who is responsible for coordinating Contractor compliance with Federal, State, local, and station environmental requirements. The Environmental Manager must 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 must comply with SFLC Std Spec 0000 Appendix B, Requirements For Environmental Protection At USCG Facilities for HW disposal, and ensure that waste removals are conducted during normal business hours (0800-1600) on Monday through Friday (excluding holidays).

3.5.6 Additional Requirements. The Contractor must be aware of the following:

3.5.6.1 No Contractor or Subcontractor must have the authority to sign a Hazardous Waste Manifest using the Coast Guard facility’s EPA Generator ID Number or remove contract generated hazardous waste from the Coast Guard facility without COR or KO-approval.

3.5.6.2 Local environmental regulations at the Government facilities may be more stringent. As with all environmental regulations, the Contractor must prepare for and comply with local and state regulations.

3.5.6.3 Coast Guard facilities do not maintain Facilities Response Plans (FRPs) per 33 CFR 154. Contractor must furnish the FRP when required for over-the-water liquids transfers to and from vessels, and is required for oil/fuel transfers to/from vessels for 250 barrels (10,500 gallons) or more.

3.6 Local Policy. The Contractor must refer to site (e.g., Base) Regulations and Instructions for details regarding local policies (e.g., crane services, parking, or facility usage).

3.7 SFLC Standard Specification approved changes. Approved updates to the 2022 SFLC Standard Specifications will appear here.

3.7.1 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 Mils Reading (IAW ASTM D4417-Method B for above 10 readings (by column):

Mean Reading (mils)

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.

58840_ESD_1225_FLT

REC_58840_FLT_270’ WMEC 'A' Class (ALL) (0420) WORK ITEM 1: Helo Talon Grids, Inspect and Test

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to inspect and test the helo talon grid system, located on the flight deck.

1.2 Government-furnished property.

($/UNIT)

**New or refurbished equipment that the Government may provide for installation in place of existing equipment.

2. REFERENCES

Coast Guard Drawings Coast Guard Drawing 901 WMEC 186-003, Rev-, Helo Lndg Grid Fdns & Struct Mod 01 Lvl Coast Guard Drawing 901 WMEC 634-002, Rev-, -, C&A, Pnt, Dk Covrg & Insul Mod Helo Securing Grid Instl

Coast Guard Publications Coast Guard Technical Publication (TP) 3368, Jun 2020, Talon Helicopter Landing Grid - Type 18-22-01 Multiple Class Cutters Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2022, General Requirements Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2022, Welding and Allied Processes Surface Forces Logistics Center Standard Specification 5000 (SFLC Std Spec 5000), 2022, Auxiliary Machine Systems Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2022, Requirements for Preservation of Ship Structures Other References ASTM International (ASTM) D5363, 2016, Standard Specification for Anaerobic Single-Component Adhesives (AN) MIL-PRF-16173, 2017, Corrosion Preventive Compound, Solvent Cutback, Cold-Application

3. REQUIREMENTS

3.1 General.

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

· 3.6 Inspections.

3.1.2 Tech Rep.

Not applicable.

3.1.3 Protective measures. The Contractor must furnish and install all protective measures in accordance with SFLC Std Spec 0000, paragraph 3.3.3 (Vessel component, space, and equipment protection).

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

3.2 Pre-removal grid clearance measurement. The Contractor must extend a straight edge across the grid from edge to edge; measure and record the grid clearance to the straight edge at the center of the grid to establish a baseline for subsequent post-installation clearance measurements. Submit a CFR.

3.3 Grid removal plan. The Contractor must develop a plan to remove the grid assembly from the grid recess, using Coast Guard Drawings 901 WMEC 186-003 and 901 WMEC 634-002 and TP 3368 as guidance. Submit the plan to COR for acceptance within 72 hours before commencing grid work. When removing grid assembly from the grid recess, ensure that no force more than 15,000 pounds is applied to the grid assembly and recess support ring.

3.4 Grid removal. The Contractor must accomplish the following:

3.4.1 Remove and dispose of the existing filler material between the talon grid and flight deck.

3.4.2 Remove and dispose of the 24 existing 5/8” fixation bolts securing grid assembly to the grid recess supporting ring, in the grid recess.

3.4.3 Remove the existing grid assembly, including stanchions and M12 grid assembly bolts, in accordance with the accepted grid removal plan.

3.5 Grid support and recess preservation. The Contractor must prepare and preserve 100% of the grid recess and support structure surfaces, excluding the bearing flange to the honeycomb top-plate, using the coating system specified for “Bilges, Cofferdams, and Forepeaks, Option III”, in SFLC Std Spec 6310, Appendix B (Cutter and Boat Interior Painting Systems). Select Grey (16099) as the finish/final top coat color.

Note Grey (16099) is not the same Light Grey that is listed in SFLC Std Spec 6310, Appendix C for Bilge Epoxy Coating System.

3.6 Inspections. The Contractor must accomplish the following inspections, using Coast Guard Drawing TP 3368 as guidance. Submit a CIR.

3.6.1 Visual. Perform a visual inspection of the following components in accordance with Std Spec 5000 Appendix A:

· Grid top plate

· Grid lower support structure

· Recess supporting ring

· Grid recess and foundation

· Stanchions and nuts

· Threaded bolt holes

· Talon grid bolt threads

3.6.2 NDE. In the presence of a Coast Guard Inspector, perform NDE of all well welds, stanchions, and lower support structure for cracks, in accordance with SFLC Std Spec 0740, Appendix C.

3.7 Grid maintenance. The Contractor must perform the preventative maintenance requirements in accordance with TP 3368, Chapter 5, Paragraph 2, and all its related sub-paragraphs.

3.8 Grid reassembly and reinstallation. Upon completion of all authorized repairs, if any, the Contractor must reassemble and reinstall the grid assembly, in accordance with TP 3368. Ensure that the grid is level with the flight deck. Due to 01 level camber, portions of the talon grid will not be flush with the top of the 01-level plating. Level the top of the grid flush with the 01 level on ship’s centerline and fair in remaining surfaces in accordance with 901 WMEC 186-003.

3.8.1 Renew the filler material in accordance with the manufacturer’s recommended instructions.

3.8.2 Apply a suitable corrosion inhibitive compound conforming to MIL-PRF-16173, Class II, Grade 3, to both faces of the honeycomb plate in lieu of the “ARDROX 3140” material, which is specified in paragraph 2.2.3.h of TP 3368.

3.8.3 Renew all M12 grid assembly bolts and 5/8” fixation bolts with Government-furnished bolts. Apply a sealing, locking and retaining compound conforming to ASTM D5363 to each bolt; and secure each bolt with the following torque:

· M12 grid assembly bolt: 22 ft-lb.

· 5/8” fixation bolt: 44 ft-lb.

3.8.4 Renew all nylon-insert stanchion locknuts (pc #20) with Government-furnished locknuts in accordance with Coast Guard Drawing FL-588-003.

3.8.4.1 If change request is authorized and released, renew stanchion bolts designated by the Coast Guard Inspector using Government-furnished stanchion/nut assemblies.

3.8.4.2 Tighten stanchion end nuts to a torque of 44 ft-lbs in accordance with paragraph 2.2.3.g of TP 3368. Apply a sealing, locking and retaining compound conforming to ASTM D5363 to all nuts and locking-nuts.

CAUTION

Do not use assembly lube/anti seize on the same fastener threads as retaining/sealing compound. They will not perform their function if used together.

3.9 Pull test. After installation, the Contractor must pull test the grid to ensure structural integrity of the total installation. This must be accomplished by the following test procedure:

3.9.1 Extend a straight edge across the grid from edge to edge; measure and record the grid clearance to the straight edge at the grid center.

3.9.2 Make a direct upward pull from the approximate center isthmus of the grid of 13,700lbs for 2 minutes. After releasing the test load, the grid and resin foundation must be visually examined for evidence of structural failure. Visible deformation or cracking must be cause failure. The grid must be inspected for surface cracks by the dye penetrant method at a radius of 12 inches from the attachment point of the pull test. Six hold down bolts must be randomly removed and inspected by dye penetrant inspection for failure and replaced or renewed as necessary. The resin foundation must be visibly inspected. Submit a CFR.

3.10 Post-installation and test grid clearance measurement. After grid reinstallation and pull test, the Contractor must repeat the clearance measurement specified in paragraph 3.2 (Pre-removal grid clearance measurement). The grid clearance should not have changed from the measurement taken in paragraph 3.9.1. Record and compare new measurement to the previous readings in paragraphs 3.2 and 3.9.1, and submit a CFR. Some minor variation from the pre-removal measurement is to be expected. There should be no change from the measurement taken prior to pull test.

3.11 Touch-up preservation. The Contractor must prepare and coat all new and disturbed surfaces to match existing adjacent surfaces in accordance with SFLC Std Spec 6310, paragraph 3.1.13 (Touch-ups and minor coating repairs.)

4. NOTES

4.1 Grid assembly particulars. The grid assembly consists of a top honeycomb plate and a lower supporting structure (support skirt) secured by 12 (M12) bolts and stanchions.

4.2 Stanchion coating. “Molykote” (specified for stanchion coating) is a brand name generically used for marine grade assembly lubricant. Multiple marine grade lubricants are acceptable for coating the stanchions; including Molykote P-37, Molykote G-N metal assembly compound, or Loctite 34395 Marine Grade anti-seize.

63120_DksHeloOps_1024_210_270 REC_63120_DksHeloOps_210_270_270' WMEC 'A' Class (ALL) (0323) WORK ITEM 2: Decks, Helicopter Operating Areas, Preserve

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to preserve the Helicopter Operating (HELO Ops)/Flight Deck and adjacent areas (see 4.1 (Definition of HELO Ops Areas)).

1.2 Government-furnished property.

None.

2. REFERENCES

Coast Guard Drawings Coast Guard Drawing 901 WMEC 801-004, Rev L, General Arrangement 01 Level Coast Guard Publications Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2022, General Requirements Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2022, Requirements for Preservation of Ship Structures Other References MIL-PRF-24667C, March 2018, Coating System, Non-Skid, for Roll, Spray, or Self-Adhering Application Naval Air Warfare Center (NAVAIR) Drawing 621055, Rev G, Visual Landing Aids Installation WMEC-270 Class Ships NAVSEA Standard Item 009-32, FY-22 CH-1, Feb 2021, Cleaning and Painting Requirements; Accomplish QPL-24667, April 2021, Qualified Product List (Military) of Products Qualified Under Detail Specification MIL-PRF-24667, Coating System, Non-Skid, for Roll, Spray, or Self-Adhering Application The Society for Protective Coatings (SSPC)/NACE International (NACE), Joint Surface Preparation Standard SSPC-SP 10/NACE No. 2, 2007, Near-White Blast Cleaning The Society for Protective Coatings (SSPC) Surface Preparation Specification No. 11 (SSPC-SP 11), 2020, Power Tool Cleaning to Bare Metal

3. REQUIREMENTS

3.1 General.

3.1.1 CIR.

None.

3.1.2 Tech Rep.

Not applicable.

3.1.3 Protective measures. The Contractor must furnish and install all protective measures in accordance with SFLC Std Spec 0000, (Vessel component, space, and equipment protection).

3.1.4 Interferences. The Contractor must handle all interferences in accordance with SFLC Std Spec 0000, (Interferences). Known interferences include, but are not limited to the following:

· Flight deck safety net assemblies.

· Talon grid cover.

· Flight deck landing lights.

· Deck drain gratings.

NOTE

Hangar Bay must be in the retracted position prior to taking and recording any measurements for the Visual Landing Aids and safety markings on flight deck.

3.2 Visual Landing Aid (VLA) and safety marking sketch. Prior to commencing surface preparation tasks, the Contractor must develop and submit, to the COR, a sketch of all existing Flight Deck VLA and safety markings and their measured locations on the Flight Deck, using NAVAIR Drawing 621055 as guidance. Obtain Coast Guard Inspector approval of the sketch, prior to applying new marking paint (see 3.6.4 (VLA and safety markings)).

3.3 Containment and ambient condition control. The Contractor must erect and maintain an environmental containment enclosure structure capable of withstanding wind, rain, and moisture intrusion. Heat/Air conditioning and ventilation to maintain environmental conditions in accordance with NAVSEA Standard Item 009-32 for Critical Coated Non-Skid must be maintained during entire preservation evolution, 24 hours a day, 7 days a week until final acceptance. The containment must be able to cover the entire deck, as designated in paragraph 1.1 (Intent), with exterior support posts only.

3.4 Polyurethane coatings. The Contractor must be aware that two-part polyurethane primers, membranes, color toppings, and non-skid are not authorized for application on Coast Guard vessels, even if listed on QPL-24667.

NOTE

Coast Guard personnel will operate all shipboard machinery and equipment.

3.5 Operational test, initial. Prior to commencement of work, the Contractor must witness Coast Guard personnel perform an initial operational test of all items or shipboard devices to be disturbed, used, repaired, or altered, to demonstrate existing operational condition. Submit a CFR.

3.6 Preservation requirements. The Contractor must prepare and coat the deck surfaces designated in paragraph 1.1 (Intent), using the system specified in Table 1. Non-skid systems (primer, non-skid topcoat, and color topping) must be installed in accordance with NAVSEA Standard Item 009-32 for Flight Deck Certification. Ensure that the system is qualified as “UV/LSA”, as designated on QPL-24667.

TAble 1 - flight deck coating system

2) Stripe Coat MIL-PRF-24667 Type I, Comp. G

3) One Full Coat Primer MIL-PRF-24667 Type I, Comp. G

4) One Coat Non-Skid MIL-PRF-24667 Type I, Comp. G

1. Color coating flight decks for other than required markings is not authorized. Non-skid material is rolled on over primer within 48 hours for best adhesion.

2. Power tool cleaning to bare metal (SSPC-SP 11) may be used in areas that cannot be accessed by abrasive blasting.

3. Waterjetting may be used only as a means of coating removal. Final surface preparation must be via abrasive blasting to the standard specified in Table 1.

4. The following blast media may not be used: Steel Shot, Steel Grit, Recyclable Encapsulated Abrasive.

5. Flight decks are constructed of High Yield (HY) steel and must not be heated to remove the existing coating.

3.6.1 The Flight Deck coating system must be procured as a qualified system conforming to MIL-PRF-24667 containing the following:

· Anti-corrosive/primer coating.

· Dark grey color (36076) non-skid top coating.

· Dark grey color (36076) finish coating, for non-skid exempted areas.

· White finish color (37875) coating, for VLA and safety markings.

3.6.2 Substrate inspection. After completion surface preparation and before application of primer coat, the Contractor must perform a visual inspection of the prepared substrate; submit a CFR.

3.6.3 Non-skid exempted areas. Apply top/finish coating, in lieu of non-skid top-coating over the following non-skid-exempted areas:

· Deck fittings, including, but not limited to: pad eyes, label plates, net supports/foundation, helicopter tie-down fittings, and lifting handles for aircraft fuel filling station.

· Areas within two inches of deck fittings and protrusions.

· Areas within six inches of adjacent bulkheads, deck coaming, and deck edges.

· Waterways.

3.6.4 VLA and safety markings. The Contractor must accomplish the following tasks:

3.6.4.1 Remove Flight Deck landing lights in way of work. Visually inspect light assemblies and submit CFR. Prepare and preserve light assemblies to match existing in accordance with SFLC Std Spec 6310. Reinstall light assemblies to original configuration.

3.6.4.2 Stripe the Flight Deck with the same pattern sketched prior to surface preparation.

3.6.4.3 Paint new VLA and safety markings with a White color (37875) finish coating.

3.7 Low temperature cure system. If a Change Request has been authorized and released, the Contractor may apply a legacy low temperature cure system, conforming to MIL-PRF-24667 Type VIII, Composition G.

NOTE

The low temperature system is only authorized for application at temperatures between 35-45 degrees F.

3.8 In-process quality control measures. The Contractor must abide by all the safety, preservation, and quality control requirements specified in SFLC Std Spec 0000, paragraph 3.2.4.2 (In-process QC measures for “critical-coated surfaces”).

NOTE

Surfaces being preserved are considered “critical-coated surfaces”.

3.9 Non-skid surface appearance and texture. The Contractor must ensure the non-skid surface shows a pattern of peaks and ridges. The ridge profile must be continuous and reasonably uniform. Peaks and ridges must be generally in the same direction (fore and aft), approximately 1/2 to 1 inch apart, and approximately 1/16 to 3/32 inches high. Aggregate must present a rough uniformly coarse appearance over the entire surface with no loosely bound clumps of particles. All weld seams must be cross-rolled from a minimum of 3 inches on either side of the weld.

3.10 Operational test, post repairs. After completion of work, the Contractor must thoroughly test, in the presence of the Coast Guard Inspector and demonstrate all items or shipboard devices that have been disturbed, used, repaired, altered, or installed to be in satisfactory operating condition. Submit a CFR.

4. NOTES

4.1 Definition of “HELO Ops Areas”/Flight Deck. “HELO Ops Areas” are defined as 01 Level deck surfaces, from Frame 103 aft, port and starboard,, as shown on Coast Guard Drawing 901 WMEC 801-004, including 01 Deck inside hangar bay, boat decks, helicopter tie-down fittings, 01 Deck perimeter coaming, talon grid cover, raised “mushroom” type tie-down fittings, line-up light fixtures, flight deck net supports/foundations, and up to six inches on all adjacent vertical surfaces, where applicable.

4.2 Certification hot line action desk. The Naval Air Warfare Center Aircraft Division Lakehurst has the responsibility for inspection and certification of all air capable aviation ships which support and operate with helicopters. A Shipboard Aviation Facility hot line action desk has been established at the Naval Air Warfare Center Aircraft Division Lakehurst, to provide a central point of contact for obtaining all information pertinent inspection and certification issues, including VLA and safety markings. The hot line action desk is in operation 24 hours a day and can be reached by contacting:

NAVAIRWARCENACDIVLKE

Lakehurst, N.J 08733-5000 Hot Line Action Desk (4.8.2.5) Phone: (732) 323-2592

4.3 Unit’s responsibilities. The ship's force will be responsible for the following:

· Removing and reinstalling all deck drain gratings.

· Plugging deck drains.

· Ensuring there is no engine operation and no stack emissions at any time during flight deck resurfacing.

· Restricting access to the Flight Deck work area to only authorized personnel.

· Contacting NAVAIR for inspection and certification of flight deck markings following work.