T-Boat DUTY Drydock SPECS FY2025 Shorthaul.doc

U.S. COAST GUARD ACADEMY

USCG Training Boat

DUTY

SPECIFICATION FOR DRYDOCK REPAIRS

U.S. COAST GUARD ACADEMY

15 MOHEGAN AVE

NEW LONDON, CT 06320

January 2025

TABLE OF CONTENTS

iv

Revisions Record v

Consolidated List of References xiii

Consolidated List of Government-furnished Property xvi

Consolidated List of Critical Inspection Items xvii

Principal Characteristics

General Requirements

WORK ITEM 1: Ultrasonic Testing (UT) (150) Shots, Perform WORK ITEM 2: U/W Body, Preserve, Partial WORK ITEM 3: Fathometer Transducer, Renew .24 WORK ITEM 4: Cathodic Protection / Zincs, Renew WORK ITEM 5: Drydock

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.

COAST GUARD DRAWINGS

COAST GUARD PUBLICATIONS

Coast Guard Commandant Instruction (COMDTINST) M10360.3, Jun 2006, Coatings and Colors Manual Fire Prevention and Response Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), Latest Version, General Requirements Surface Forces Logistics Center Standard Specification 0450 (SFLC Std Spec 0450), 2022, Electrical Power for Contractor's Tools & Equipment Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), Latest Version, Welding and Allied Processes Surface Forces Logistics Center Standard Specification 5550 (SFLC Std Spec 5550), Latest Version, Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), Latest Version, Requirements for Preservation of Ship Structures Surface Forces Logistics Center Standard Specification 8634 (SFLC Std Spec 8634), 2022, Drydocking

OTHER REFERENCES

American Society for Nondestructive Testing (ANST), SNT-TC-1A ANSI B4.2-1978 (2009) Preferred Metric Limits and Fits ASTM International (ASTM) D1330, 2015, Standard Specification for Rubber Sheet Gaskets ASTM International (ASTM) D4138, 2013, Standard Practices for Measurement of Dry Film Thickness of Protective Coating Systems by Destructive, Cross-Sectioning Means Coast Guard Commandant Instruction (COMDTINST) M10360.3, Jun 2006, Coatings and Colors Manual Code of Federal Regulations (CFR) Title 29, Part 1915, Jul 2019, Occupational Safety and Health Standards for Shipyard Employment Code of Federal Regulations (CFR) Title 29, Part 1915, Occupational Safety and Health Standards for Shipyard Employment Commercial Item Description (CID) A-A-59313, Nov 2003, Thread Compound; Antiseize, Zinc Dust-Petrolatum MIL-A-18001, May 2005, Anodes, Sacrificial Zinc Alloy (Commercially Accepted - ASTM B418) The Society for Protective Coatings (SSPC) Surface Preparation Specification No.1 (SSPC-SP 1), 2016, Solvent Cleaning The Society for Protective Coatings (SSPC) Surface Preparation Specification No.3 (SSPC-SP 3), 2004, Power Tool Cleaning The Society for Protective Coatings (SSPC) Surface Preparation Standard No. 11 (SSPC-SP 11), 2013, Power-Tool Cleaning to Bare Metal 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) 2007, Joint Surface Preparation Standard SSPC-SP 10/NACE No. 2, Near-White Metal Blast Cleaning The Society for Protective Coatings (SSPC)/NACE International (NACE) Joint Surface Preparation Standard SSPC-SP 7/NACE No.4, 2007, Brush-Off Blast Cleaning The Society for Protective Coatings (SSPC)/NACE International (NACE) Joint Surface Preparation Standard SSPC-SP 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 WJ-4/NACE WJ-4, 2012, Waterjet Cleaning of Metals – Light Cleaning The Society for Protective Coatings (SSPC)/NACE-International (NACE) Joint Surface Preparation Standard SSPC-SP 12/NACE No. SSPC-SP 12/NACE No.5, Surface Preparation and Cleaning of Steel & Other Hard Materials by High and Ultrahigh Pressure Water Jetting Prior to Recoating 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 the vessel

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 64’ Training Boat (t-boat)

Physical

hull

Machinery

Diameter of propeller

Pitch

RPM

tanks

General Requirements

1. SCOPE

1.1 Intent. This standard specification invokes general requirements for conducting boat repairs performed at a commercial contractor’s facility for Coast Guard vessels.

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), Latest Version, General Requirements Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), Latest Version, Welding and Allied Processes Surface Forces Logistics Center Standard Specification 5550 (SFLC Std Spec 5550), Latest Version, Fire Prevention and Response Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), Latest Version, 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 NAVSEA Technical Publication T9074-AD-GIB-010/1688, (TP 1688), July 2012, Requirements for Fabrication, Welding, and Inspection of Submarine Structure

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.

3.3 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).

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.

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

3.5.1 Contractor operated (non USCG) facilities. The Contractor must 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 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.

3.5.3 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.

3.5.5 HW disposal. Contractor must comply with SFLC Std Spec 0000 Appendix A, Requirements For Environmental Protection At Contractor Operated (Non USCG) Facilities for HW disposal.

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.

WORK ITEM 1: Ultrasonic Testing (UT) (150) Shots, Perform

1. Scope

1.1 Intent. This work item describes the requirements for the Contractor to take 150 UT shots at locations designated by the Coast Guard Inspector.

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), 2022, General Requirements Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2022, Welding and Allied Processes

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):

· 3.3 Reporting.

3.1.2 Tech Rep.

None.

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

3.2 Ultrasonic thickness measurement. The Contractor shall perform a total of 150 thickness measurements. 100 measurements in locations equally spaced along the entire UW hull surface in accordance with SFLC Std Spec 0000 and SFLC Std Spec 0740 and 50 measurements in locations designated by the Coast Guard inspector.

3.3 Reporting. The Contractor shall submit a CIR on contractor provided report labeling location of all readings and UW hull appendages. The 50 measurements in locations designated by the Coast Guard inspector may be on a separate report. The report shall list the designed hull plating thickness and highlight any readings 75% and less of the designed thickness.

WORK ITEM 2: U/W Body, Preserve, Partial

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to partially preserve the U/W body surfaces. Properly clean and prepare the existing anti-foulant coating and apply one coat of anti-foulant IAW manufactures specifications and below references. Any UW body coating(s) disturbed while accomplishing other work items in this drydock package will be required to be recoated to original DFT’s.

1.2 Government-furnished property.

None.

2. REFERENCES

Coast Guard Drawings N/A Coast Guard Publications Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), General Requirements Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), Requirements for Preservation of Ship Structures Other References ASTM International (ASTM) D3359, 2009, Standard Test Methods for Measuring Adhesion by Tape Test MIL-PRF-24647, Jun 2006, Paint System, Anticorrosive and Antifouling, Ship Hull The Society for Protective Coatings (SSPC) Surface Preparation Specification No.1 (SSPC-SP 1), 2015, Solvent Cleaning The Society for Protective Coatings (SSPC)/NACE International (NACE) Joint Surface Preparation Standard SSPC-SP 7/NACE No.4, 2007, Brush-Off Blast Cleaning The Society for Protective Coatings (SSPC)/NACE International (NACE) Joint Surface Preparation Standard SSPC-SP WJ-4/NACE WJ-4, 2012, Waterjet Cleaning of Metals – Light Cleaning

3. REQUIREMENTS

3.1 General.

3.1.1 CIR.

None.

3.1.2 Tech Rep.

None.

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) and to the following specific components, spaces and equipment:

· All scuppers and overboard discharges.

· Waterline area where U/W body coating system interfaces with freeboard coating system (unless freeboard surfaces are also being preserved).

· Fathometer transducer surfaces.

· Sea valve openings.

· Propeller shaft bearings and seals.

· Rudder bearings.

· Propellers.

· Cathodic protection anodes (unless anodes are being renewed).

3.1.4 Interferences. The Contractor must 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:

· Sea chest grating.

3.3 Water used in preparation and washing procedures. The Contractor must ensure that water used in all surface preparation tasks, including pre-surface preparation wash and water jetting is of sufficient purity and quality that it does not prevent the surface being cleaned from achieving the required degree of surface cleanliness or non-visible contamination criteria.

3.3.1 Ensure that surface preparation water does not contain sediments or other impurities that are destructive to the proper functioning of the cleaning equipment.

3.3.2 Ensure that all water used in any surface preparation or cleaning procedures is captured, contained, and all spent water disposed of in accordance with all Federal, state and local regulations.

3.3.3 Surface preparation optional methods. The Contractor has the option of mechanical preparation or using either high pressure water Jetting or abrasive blasting to achieve the required surface preparation, prior to application of the coating system specified in 3.2 (Preservation requirements). The Contractor may add abrasives to the water jet stream, for one or both of the following reasons:

· Achieving greater productivity.

· Achieving the required surface profile.

3.4 Preservation requirements. The Contractor must accomplish the following tasks:

3.4.1 Pre-surface preparation wash. Accomplish low-pressure (less than 5,000 psi) fresh water wash of all affected surfaces, as soon as the vessel is dry docked to remove the leached layer, soluble chlorides and other surface contaminants. Refer to SSPC-SP 1, for guidance.

3.4.3 Post-surface preparation inspection and cleaning.

3.4.3.1 Inspection of remaining coatings. Perform a visual inspection, to ensure there is no loose AF coating in any location.

3.4.3.2 Solvent cleaning. Perform solvent cleaning of all prepared surfaces, in accordance with SSPC-SP 1, prior to coating application. Capture, contain, and dispose of all wastes from solvent cleaning, in accordance with all Federal, state and local regulations.

3.4.4 Coating application. Apply one coat of International Interspeed 6400NA Anti foul paint or equivalent IAW manufacturers recommendations.

3.4.4.1 Epoxy Coating. In the event the epoxy primer coat must be repaired, International Intertuf 262 epoxy primer or equivalent must be used.

3.5 Draft mark painting. The Contractor must paint all draft marks with two coats of a “Polysiloxane” or “Silicone Alkyd Enamel” coating, at 2.0-3.0 mils DFT, white (17925).

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

4. NOTES

4.1 Definitions.

4.1.1 U/W body. The underwater body is defined as the areas from the bottom of the keel to the waterline, including rudders, transducer hull rings, bilge keels, struts, skegs, gratings, and rope guards.

WORK ITEM 3: Fathometer Transducer, Renew

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to renew the transducer(s).

1.2 Government-furnished property.

($/UNIT)

***Government-furnished property, which is to be supplied by either the vessel or the C4IT Service Center

2. REFERENCES

Coast Guard Drawings None Coast Guard Publications Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2022, General Requirements Other References Federal Specification (Fed Spec) HH-P-151, Mar 1991, Packing; Rubber-Sheet, Cloth-Insert 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 must furnish and install all protective measures in accordance with SFLC Std Spec 0000, paragraph 3.3.3 (Vessel component, space, and equipment protection).

3.1.3.1 Transducer and lines. Protect all exposed ends of transmission lines, control lines, connectors, and cables from weather, moisture, and physical damage while they are disconnected from the transducer. Take all necessary measures to protect transducer from damage during the performance of work.

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

3.2 Transducer renewal particulars. The Contractor must accomplish the following tasks;

3.2.1 Transducer removal. Disconnect and remove the existing fathometer transducer. Retain the mounting hardware for reinstallation.

3.2.2 New transducer installation. Install new Government-furnished transducer(s), in place of the removed. Reinstall hull adapter ring (if applicable) and transducer using new gaskets and adhesive sealants. Apply mold release aerosol coating to both adaptor orifice and transducer to facilitate future removal of the transducer from the adaptor ring.

3.2.2.3 Reconnect each transducer cable and renew all stuffing tube packing and seals. Cut the transducer cable to length leaving 2-foot service loop in the cable. Ensure cables are installed in a manner to prevent any chaffing which may require new cable way clamps and stuffing tubes.

3.2.2.5 Thoroughly clean the transducer radiating surfaces with a strong solution of household detergent to remove any oil, dirt, and all other surface contaminants.

3.3 Transducer seal. The Contractor must inspect the transducer to ensure that its outer circumference is installed flush to the hull ring and the transducer cover plate forms a tight seal with the hull ring.

3.4 Post installation tests. After completion of work, the Contractor must accomplish the following tasks, in the presence of the Coast Guard Inspector:

3.4.1 Inspect the newly installed transducer for water leaks.

3. 5 Leak repairs. The Contractor must observe the transducer for leaks during the vessel re-floating process. Repair all leaks detected. Submit a CFR.

3.6 Operational test – post repairs. After completion of work, the Contractor must thoroughly test and prove the transducer(s) to be in satisfactory operating condition.

4. NOTES

4.1 Operation of equipment. Coast Guard personnel will operate all shipboard machinery and equipment.

WORK ITEM 4: Cathodic Protection / Zincs, Renew

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to renew the cathodic protection system components.

· Hull Anodes

· Propeller Shaft Anodes

· Rudder/Shaft Anodes

1.2 Government-furnished property.

· None

2. REFERENCES

COAST GUARD DRAWINGS

None

COAST GUARD PUBLICATIONS

N/A

OTHER REFERENCES

Commercial Item Description (CID) A-A-59313, Nov 2003, Thread Compound; Antiseize, Zinc Dust-Petrolatum MIL-A-18001, May 2005, Anodes, Sacrificial Zinc Alloy (Commercially Accepted - ASTM B418)

3. REQUIREMENTS

3.1 General.

3.1.1 CIR.

None.

3.1.2 Tech Rep.

None.

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).

3.2.1 Remove. Remove and dispose of all designated zinc anodes. Where applicable, grind flush all residual roughness with the hull.

3.2.2 New installations. Furnish and install new zinc anodes.

· Apply anti-seize compound, conforming to (CID) A-A-59313 to studs before the zinc anode is installed.

Note All studs, nuts and external tooth type lock washers are manufactured from 316 stainless steel for ZHC 23 zincs.

3.2.2.2 Chip, grind, or wire-brush smooth all straps, welds, and mounting studs, as applicable. In addition, ensure that all installed anode surfaces are free of paint.

3.3 Electrical resistance testing. The Contractor must measure the electrical resistance between each zinc anode zinc surface and an adjacent metal ship structure, utilizing a calibrated OHM meter and a scale, to ensure that it is less than 0.1 ohm.

note Do not paint new Cathodic Protection Zincs or Fasteners.

3.4 Touch-up preservation. The Contractor must prepare and coat the hull surfaces in way of removed anodes to match existing adjacent surfaces.

WORK ITEM 5: 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.

· None.

2. REFERENCES

Coast Guard Drawings Coast Guard Publications Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2022, General Requirements Surface Forces Logistics Center Standard Specification 8634 (SFLC Std Spec 8634), 2022, Drydocking 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 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). Known interferences include, but are not limited to the following:

· Anchor assembly

· Load conditions

· U/W body appendages

3.2 Docking and undocking. The Contractor must perform drydock and undock in accordance with SFLC Std Spec 8634.

3.3 Blocking. The Contractor must facilitate docking the vessel in designated block position by arranging keel and side blocks.

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

4. NOTES

None