52315_FY16_DRYDOCKING_Rev-0.pdf

i (Rev-0)

USCG 52315 (MLB 52)

INTREPID

SPECIFICATION FOR DRYDOCK REPAIRS

FY2016

Developed by: Joseph D. Barratt

(Rev-0, 10 December, 2015) ii (Rev-0)

TABLE OF CONTENTS

Consolidated List of References ............................................................................................................... iv

Consolidated List of Government-furnished Property ............................................................................ vii

Consolidated List of Critical Inspection Items ......................................................................................... ix Principal Characteristics

GENERAL REQUIREMENTS

WORK ITEM 1: General Welding, Provide WORK ITEM 2: Hull Plating (U/W Body), Inspect

WORK ITEM 3: Ultrasonic Testing (UT) Shots, Perform WORK ITEM 4: Tanks (MP Fuel Service), Clean and Inspect WORK ITEM 5: Non Potable Water Tank, Inspect WORK ITEM 6: Propeller Shaft, Remove, Inspect, and Reinstall WORK ITEM 7: Dripless Shaft Seal, Renew

WORK ITEM 8: Propulsion Stern Tube and Strut Bearings, Renew WORK ITEM 9: Propellers, Remove, Inspect, and Reinstall

WORK ITEM 10: Standard Hoses, Renew

WORK ITEM 11: MDE Raw Water Strainer Renewal WORK ITEM 12: Sea Water Valves, Renew WORK ITEM 13: Fuel Root Valves, Renew

WORK ITEM 14: Hydraulic Steering Oil System, Clean and Inspect WORK ITEM 15: Steering System Piping, Replace & Repair WORK ITEM 16: Rudder Assembly, Remove, Inspect and Reinstall

WORK ITEM 17: Rudder Stock Bearing, Renew WORK ITEM 18: Cathodic Protection / Zincs, Renew

WORK ITEM 19: Enclosed Bridge, Window Frame Inspection WORK ITEM 20: Main Diesel Engine & Generator Set, Remove and Install

WORK ITEM 21: U/W Body, Preserve “100%” WORK ITEM 22: Hull Plating Freeboard, Preserve “100%”

WORK ITEM 23: Superstructure, “Preserve 100%” WORK ITEM 24: Decks - Exterior, Preserve (“Non-Skid Broadcast Grit” System) WORK ITEM 25: Non Machinery Bilge, Internal Surfaces, Preserve

WORK ITEM 26: Diesel Tank, Refuel WORK ITEM 27: Marine Chemist Services, Provide

WORK ITEM 28: Temporary Services, Provide WORK ITEM 29: Routine Drydocking, Provide WORK ITEM 30: Full Power Trial Performance, Provide iii (Rev-0)

Revisions Record

This page is used to record specification revisions, which may have occurred subsequent to a Revision 0 (Rev-

0) package. Information listed is intended to provide contractors and field unit personnel a means to ensure all the current specification revision pages are present when reviewing or utilizing this specification package.

DATE REV# WORK

ITEM#

CHANGES MADE

NOTE : All work item and paragraph numbers listed above for a given revision correspond to same numbers in the previous revision. This revised specification is self-contained with all of the above listed changes incorporate iv (Rev-0)

Consolidated List of References

The below-listed documents form a part of this specification to the extent specified herein. Approval/publication dates or revision dates/numbers are also identified, to ensure that same document versions are used at time of specification writing and during contract execution.

All Coast Guard drawings, technical publications, and standard specifications will be provided to contractors by the Coast

Guard at an appropriate time, or upon request, free of charge. Other Government documents may be accessed – free of charge – as follows:

MIL/DOD/CID Specifications: http://www.assistdocs.com/search/search_basic.cfm

Commandant Instruction Manuals: http://www.uscg.mil/directives/default.asp

USCG SFLC Standard Specs: http://www.uscg.mil/SFLC/mlclant/vdiv/standard_specifications.asp

Public Laws, Code of Federal Regulations, U.S Codes, and other Federal Government laws::

www.gpoaccess.gov

The Government is aware of the following internet web links where contractors may procure commercial specifications:

American Welding Society (AWS): http://www.awspubs.com/index.php

ANSI, ASTM, IEEEE, NFPA, ASME, SAE Standards: http://www.techstreet.com/

NFPA: http://www.nfpa.org

SSPC Standards and pictorial guides: http://www.sspc.org/market-place/standards/

COAST GUARD DRAWINGS

Coast Guard Drawing 52 MLBS 103-5, Rev B, Profiles & General Arrg (52314-15)

Coast Guard Drawing 52 MLBS 0400-001, Rev A, Arrangement and Details of Keel Blocks (52312-52315)

Coast Guard Drawing 52 MLBS 500-2, Rev A , Lines & Offsets (52312-52315)

Coast Guard Drawing 52 MLBS 600-1, Rev A, Launching Cradle (52312-52315)

Coast Guard Drawing 52 MLBS 0700-001, Rev B, Docking Plan (52312-52315)

Coast Guard Drawing 52 MLBS 1103-1, Rev G, Shell Plat, Long Fram & Webs (52312-52315)

Coast Guard Drawing 52-MLBS 1103-2, Rev G; Keel & Skeg (52312-52315)

Coast Guard Drawing 52-MLBS 1103-4, Rev G; Skeg Cutout (52312-52315)

Coast Guard Drawing 52 MLBS 1103-5, Rev -, O.T. BHD 16R & Stiffener Renewal

Coast Guard Drawing 52 MLBS 1105-1, Rev D, Transv & Long W.T. & O.T. BHDS (52312-52315)

Coast Guard Drawing 52 MLBS 1105-2, Rev D, Joiner Bulkheads (52312-52315)

Coast Guard Drawing 52 MLBS 1106-1, Rev F, Mn Dk Berth Flat Fram & Plat (52312-52315)

Coast Guard Drawing 52 MLBS 1106-4, Rev A, Engine Room Floor Plating (52314-52315)

Coast Guard Drawing 52 MLBS 1107-4, Rev F, Superstructure & Pilothouse (52312-52313)

Coast Guard Drawing 52 MLBS 1112-1, Rev E, MN Engine Foundation (52312-52315)

Coast Guard Drawing 52 MLBS 1202-1, Rev E, Towing Rails & Life Rails (52312-52315)

Coast Guard Drawing 52 MLBS 1602-1, Rev B, Door Manhole Scuttle and Hatch List (52312-52313)

Coast Guard Drawing 52 MLBS 1602-2, Rev A, Joiner Doors and Details (52312-52313)

Coast Guard Drawing 52 MLBS 1702-1, Rev B, Mast Assy & Naviagaion

Coast Guard Drawing 52 MLBS 2000-9 Rev -, Hydraulic Steering System

Coast Guard Drawing 52 MLBS 2200-1, Rev K, Rudder and Steering Gear Arrangement (52312-52313)

Coast Guard Drawing 52 MLBS 2200-007, Rev -, Twin Rudder Instl A&D

Coast Guard Drawing 52 MLBS 2200-008, Rev -, Steering Gear Assy (52312-52315)

Coast Guard Drawing 52 MLBS 2908-1, Rev A, Cmpt Tst & Per Air Tst Ftng Sched (52312-52313)

Coast Guard Drawing 52 MLBS 3301-1, Rev B, Mess Berth & Passenger Space (52312-52315) http://www.assistdocs.com/search/search_basic.cfm http://www.uscg.mil/directives/default.asp http://www.uscg.mil/SFLC/mlclant/vdiv/standard_specifications.asp http://www.gpoaccess.gov/ http://www.awspubs.com/index.php http://www.techstreet.com/ http://www.nfpa.org/ http://www.sspc.org/market-place/standards/ v (Rev-0)

Coast Guard Drawing 52 MLBS 3801-1, Rev-, Ventilation Diagram (52312-52315)

Coast Guard Drawing 52 MLBS 3801-2, Rev D, Ventilation (52312-52315)

Coast Guard Drawing 52 MLBS 3901-1, Rev C, Insulation (52312-52313)

Coast Guard Drawing 52 MLBS 4000-2, Rev I, Machinery Arrangement (52314-52315)

Coast Guard Drawing 52 MLBS 4103-4, Rev A, Engine Cooling S.W. System (52312-52315)

Coast Guard Drawing 52-MLBS 4301-1, Rev E, Shafting, Bearings & Stern Tube (52312-52315)

Coast Guard Drawing 52 MLBS 4801-1, Rev C, SW Bilge Fuel Oil & Heating System Piping Diagram

Coast Guard Drawing 52 MLBS 4801-2, Rev A, Tank Vents Fills & Sounds (52312-52315)

Coast Guard Drawing 52 MLBS 4803-1, Rev D, Fire Main & Salvage System (52312-52315)

Coast Guard Drawing 52-MLBS 4808-1, Rev C, Bilge Drainage System (52312-52315)

Coast Guard Drawing 52 MLBS 4823-1, Rev B, Seachest & Details (52312-52315)

Coast Guard Drawing 52 MLBS 4823-2, Rev E, Fathometer Seachest & DETS (52312-52315)

Coast Guard Drawing 52 MLBS 5501-1, Rev C, Fuel Oil System (52312-52315)

Coast Guard Drawing 52 MLBS 8201-001, Rev -, Forward and Aft Lifting Sling

Coast Guard Drawing 52 MLBS 8201-002, Rev A, Arrangement of Lifting Sling

Coast Guard Drawing 52 MLBS 8201-003, Rev A, Arrangement and Details of Boat Cradle

COAST GUARD PUBLICATIONS

Coast Guard Technical Publication (TP) 52 MLB-1684 Boat Information Book

Coast Guard Technical Publication (TP) 52 MLB-1685 Manufacturer's Instruction Book - SWBS Group(S) 233 –

Coast Guard Technical publication (TP) 4934 August 2009, Small Boat Diagrams for Hotwork SWBS Group 74, Section A

Commandant Instruction Manual COMDTINST M9000.6 (series), Naval Engineering Manual, March 2011

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2012, General Requirements

Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2012, Welding and Allied

Processes

Surface Forces Logistics Center Standard Specification 6310, (SFLC Std Spec 6310) 2012 Requirements for

Preservation of Ship Structures

Surface Forces Logistics Center Standard Specification 8635 (SFLC Std Spec 8635), 2012, Temporary Services

Surface Forces Logistics Center Standard Specification 8634 (SFLC Std Spec 8634), 2012, Drydocking

Surface Forces Logistics Center Standard Specification 5000 (SFLC Std Spec 5000), 2012, Auxiliary Machine

Systems

OTHER REFERENCES

ASTM International (ASTM) 6966, 2008, Standard Practice for Collection of Settled Dust Samples Using Wipe

Sampling Methods for Subsequent Determination of Metals

ASTM International (ASTM) D1330, 2004, Standard Specification for Rubber Sheet Gaskets

ASTM International (ASTM) D4138, 2007, Standard Practices for Measurement of Dry Film Thickness of

Protective Coating Systems by Destructive, Cross-Sectioning Means

ASTM International (ASTM) D5363, 2008; Standard Specification for Anaerobic Single-Component Adhesives

(An)

ASTM International (ASTM) E797, 2005, Standard Practice for Measuring Thickness by Manual Ultrasonic

Pulse-Echo Contact Method

Code of Federal Regulations (CFR) Title 29, Part 1910, Jul 2008, Occupational Safety and Health Standards vi (Rev-0)

Code of Federal Regulations (CFR) Title 33 CFR, Jul 2010, Navigation and Navigable Waters

Code of Federal Regulations (CFR) Title 40, Chapter I 2008, Environmental Protection Agency

Code of Federal Regulations (CFR) Title 49, Chapter I, 2008, Pipeline and Hazardous Materials Safety

Administration, Department Of Transportation

Commercial Item Description (CID) A-A-59313, Nov 2003, Thread Compound; Antiseize, Zinc Dust-Petrolatum

International Standard For Organization (ISO) 484/2, 1981, Shipbuilding - Ship Screw Propeller - Manufacturing tolerances - Part 2: Propellers of Diameter Between 0.80 and 2.50m, Inclusive

MIL-A-18001, May 2005, Anodes, Sacrificial Zinc Alloy (Commercially Accepted - ASTM B418)

MIL-DTL-1222, Dec 2000, Studs, Bolts, Screws and Nuts for Applications Where a High Degree of Reliability Is

Required

MIL-PRF-16173, Sep 2006, Corrosion Prevention Compound, Solvent Cut-Back, Cold-Application

MIL-S-45180, 1998; Sealing Compound, Gasket, Hydrocarbon Fluid and Water Resistant

NAVSEA Technical Manual (NSTM), (September 1998) Chapter 078V2-Gaskets and Packing

NAVSEA Technical Manual (NSTM), (Jan 2008) Chapter 505-Piping Systems

NAVSEA Technical Publication T9074-AD-GIB-010/1688, (TP 1688), May 1997, Requirements for Fabrication, Welding, and Inspection of Submarine Structure

Society of Automotive Engineers (SAE) Aerospace Material Specification (AMS) C6183, 2007, Cork and Rubber

Composition Sheet; For Aromatic Fuel and Oil Resistant Gaskets

Society of Automotive Engineers (SAE) Aerospace Material Specification (AMS) G-6032, 1999, Grease, Plug

Valve, Gasoline and Oil Resistant, NATO Code Number G-363, Metric

Society of Automotive Engineers (SAE) Standard J1475, 2009, Hydraulic Hose Fittings for Marine Applications

The Society for Protective Coatings (SSPC) Surface Preparation Specification No.11 (SSPC-SP 11), 2004, Power

Tool Cleaning to Bare Metal

The Society for Protective Coatings (SSPC), June 1996, Paint Application Specification No. 2 (PA-2), Measurement of Dry Coating Thickness with Magnetic Gages

The Society for Protective Coatings SSPC-SP 1, -; Solvent Cleaning

The Society for Protective Coatings SSPC-SP 2, -; Hand Tool Cleaning vii (Rev-0)

Consolidated List of Government-furnished Property

The following is a list of property, which the Government will furnish. This list supersedes any other material obligations indicated or implied by referenced drawings.

WORK

ITEM

MTI ITEM DESCRIPTION NSN/PN QTY ESTIMATED

COST

($/UNIT)

7 N

PSS Shaft Seal, water injection model; Suitable for

2-1/8” shaft dia

P/N 02-218-334 2 ea $200.00

10 N 2.5” Groco VD-2500 duplex strainers

P/N VD-2500

NIIN 01-033-1285

2 ea.

N Filter Element Kit 14-

2-6

1037 2 ea.

N Filter Element Kit

142A-6

2218 2 ea.

20 Y Port Main Diesel

Engine NIIN: 00-892-5088 1 ea

20 Y Stbd main Diesel

Engine NIIN: 00-892-5084 1 ea.

N Interlux Brightside

“Blue-Glo” White paint

4259 5 gal.

N Interlux Brightside

“Blue-Glo” White paint

4259 5 gal.

23 N Interlux Black paint 4258 5 gal.

23 N Interlux Sundown

Buff paint 4237 5 gal.

viii (Rev-0)

24 N Interlux Gray 232 5 gal.

24 N Interlux Black paint 4258 5 gal.

*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 ix (Rev-0)

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_STD, paragraph 3.2.6.1.4 (Inspection report particulars)):

Work

Item Title

2 Hull Plating (U/W Body), Inspect

6 Propulsion Shaft, Remove Inspect and Install

16 Rudder Assembly, Remove Inspect and Install

19 Enclosed Bridge Window Frame Inspect

10 (Rev-0)

PC_MLB_52_0214

Principal Characteristics

52' MLB Motor Life Boat

Physical Characteristics

Length Overall 52' 0"

Beam, Over Rub Rails 14' 6"

Fixed Height 14’ 8”

Unfixed Height 20’11”

Operating Displacement 70,900 lbs

Cargo Maximum 6,300 lbs

Full Load Displacement 77,200 lbs

Draft at Operating

Displacement 6' 1"

Draft at Full Load

Displacement 6' 3"

Hoisting Weight 77,500 lbs

Installed hoisting gear none

Hull Characteristics

Hull Material Steel

Superstructure Material 5086 Aluminum

Frame spacing 2' 0"

Machinery Characteristics

Engine Details

(2) GM 6-71, 170 SHP each @

1800 RPM 3:1 Reduction

Electrical System 24 Volt DC

Propeller Details 36" dia. x 30" pitch

Shaft Alignment Tolerances 0.004" face to face 12, 3, 6 & 9 o'clock positions

Performance

Maximum Speed at Sea

State 0 11 knots

Cruise Speed at Sea State 2 11 knots

Fuel Capacity (Diesel) 1,052 gals

Range at Cruise, Sea State 0 495 nm

11 (Rev-0)

00000_0114_FLT

REC_0000_FLT_ Boats- 52 MLBS @ Commercial Facility (1212)

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.

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

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2012, General

Requirements

Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2012, Welding and

Allied Processes

Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2012, Requirements for Preservation of Ship Structures

OTHER REFERENCES

Code of Federal Regulations (CFR) Title 33 CFR, Jul 2010, Navigation and Navigable Waters

Code of Federal Regulations (CFR) Title 40, Chapter I 2008, Environmental Protection Agency

Code of Federal Regulations (CFR) Title 49, Chapter I, 2008, Pipeline and Hazardous Materials Safety

Administration, Department Of Transportation

ASTM International (ASTM) 6966, 2008, Standard Practice for Collection of Settled Dust Samples

Using Wipe Sampling Methods for Subsequent Determination of Metals

Code of Federal Regulations (CFR) Title 29, Part 1910, Jul 2008, Occupational Safety and Health

Standards

The Society for Protective Coatings (SSPC) Surface Preparation Specification No.11 (SSPC-SP 11), 2004, Power Tool Cleaning to Bare Metal

12 (Rev-0)

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 fire watch personnel and fire extinguishers for the duration of the availability period.

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 SFLC Std Spec 6310.

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 11 of COMDTINST MI0360.3) are strictly prohibited.

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

3.5 HW disposal. The Contractor shall be considered as the generator of all contract-generated hazardous wastes and shall use its facility’s EPA generator ID number for management, transportation, and disposal of said hazardous wastes. Ensure the following:

3.5.1 Contractor’s hazardous waste handlers shall comply with applicable requirements of 40 CFR 262

3.5.2 All contract generated hazardous wastes shall be packaged in 49 CFR-compliant containers.

3.5.3 The designated wastes shall be disposed of at a state or Federally-approved and permitted HW TSDF.

3.5.4 Name of destination TSDF shall be submitted to the KO at the Arrival Conference.

3.6 SFLC standard specification approved changes. The Contractor shall be aware that the following are approved changes to published SFLC 2012 Edition Standard Specifications and supersede published content:

3.6.1 SFLC Std Spec 8634, Drydocking, Appendix A, page A5, paragraph A2.7.1.3 Side Blocks: Remove formula value shown as g – Acceleration of gravity – 32.3 Ft/sec , and replace with formula value g -

Acceleration of gravity - 32.174 ft/sec

13 (Rev-0)

3.6.2 SFLC Std Spec 0740, Welding and Allied Processes. SFLC Std Spec 0740 added Appendix E, Stray

Current Protection: New Appendix is posted with SFLC Standard Specifications as a separate document on internet and intranet webpage.

3.6.2.1 SFLC Std Spec 0740, page 1, paragraph 1.2 Appendices: Add ‘Stray Current Protection’ to ‘Process

Standard column of appendices table. Add ‘E’ to ‘Appendix’ column of appendices table.

3.6.2.2 SFLC Std Spec 0740, page 4, paragraph 3.1.3 Stray current protection: Add “The Contractor shall meet all requirements for stray current protection as specified in Appendix E - Stray Current Protection.” directly after paragraph 3.1.3 title.

3.6.2.3 SFLC Std Spec 0740, page 4, paragraph 3.1.3 Stray current protection: Delete paragraphs 3.1.3.1 and

3.1.3.2.

3.6.3 SFLC Std Spec 0450, Electrical Power for Contractor’s Tools and Equipment, page 1, paragraph 1.1

Intent: Add sentence, “Note that stray current protection for welding equipment is covered in SFLC Standard

Specification 0740, Welding and Allied Processes, Appendix E.” to end of paragraph.

3.6.3.1 SFLC Std Spec 0450, page 5, paragraph 3.4 Equipment Grounding: Add sentence, “Stray current protection for welding equipment is covered in SFLC Standard Specification 0740, Welding and Allied

Processes, Appendix E.” to end of paragraph.

3.6.3.2 SFLC Std Spec 0450, page 6, paragraph 3.4 Equipment Grounding: Delete paragraphs 3.4.1.4 and

3.4.1.5.

3.6.3.3 SFLC Std Spec 0450, page 6, paragraph 3.4 Equipment Grounding: Delete Figure 5.

3.6.4 SFLC Std Spec 0000, General Requirements, Appendix A Requirements for Environmental Protection:

Add new paragraph A2.2.5.3.3 Additional requirement during lead-containing paint abatement, as follows:

A2.2.5.3.3 Additional requirements during lead-containing paint abatement. Abide by the following additional requirements, during work that involves disturbance or abatement of lead-containing paint:

A2.2.5.3.3.1 Protective measures.

A2.2.5.3.3.1.1 Abide by the following additional safety precautions during the lead dust clean-up operation

(see A2.2.5.3.3.3 Post-surface preparation cleaning, inspection, and sampling):

Separate contaminated areas from other areas.

Do not permit non-essential personnel in the work area.

Work in one compartment at a time.

Prevent dust from migrating to other areas, as follows:

o Seal doors, hatches, and all other openings between the work area and other areas with an airtight barrier, such as fire-rated polyethylene; seal both sides (inside the construction area, and inside the adjacent area) to provide a secondary dust barrier and prevent the doors and windows from being used (post alternative emergency exits, if applicable).

o Ensure that the work area remain under negative pressure in relation to adjacent areas.

14 (Rev-0)

NOTE

Negative pressure means that more air is exhausted from the area than is supplied so that lead dust and asbestos particles are contained within the work area, and do not contaminate adjacent non-affected compartments. Exhaust air must be filtered with a suitable HEPA filter.

Take, at a minimum, the following measures, to protect de-contamination workers:

o Use a HEPA (high-efficiency particulate air) vacuum - never use a conventional vacuum. A

HEPA vacuum removes 99.97% of particles that are less than 0.3 microns in size.

o Never use compressed air; never dry sweep.

o Workers must wear a respirator which is approved by NIOSH and has N100, P100 or R100 filters (the cartridges are usually purple); respirators must be fit-tested to insure proper seal, and employees must be medically screened and trained prior to wearing a respirator (see the

OSHA Respirator Standard, 29 CFR 1910.134).

o Workers must wear full-body protective clothing, head covering and shoes (or shoe covers).

o Workers must not leave the work area without having gone through a proper decontamination process, to prevent spread of lead dust to un-affected areas.

o Eating, drinking and smoking are prohibited in work areas.

o Workers must wash hands and face before eating, drinking or smoking.

o Workers must remove work clothes and shoes before leaving the work area, and seal work clothes in plastic.

o Workers must shower and wash hair as soon as possible after leaving the work area.

o Non-disposable work clothes must be washed separately from other clothes.

A2.2.5.3.3.1.2 Remove and dispose of all protective covers, upon completion of work.

A2.2.5.3.3.2 Spot lead coating abatement. When lead-containing coating, has been identified either in a particular work item or via a CFR as interference to work (including but not limited to hotwork, equipment and component installations, structural repairs, or ultrasonic thickness measurements), do the following:

A2.2.5.3.3.2.1 Coating removal/surface preparation. Remove existing lead-containing coating in affected areas, using one or a combination of the cleaning methods specified in Table A1 below, as applicable. Ensure that all power tool equipment have suitable vacuum attachments, to capture all generated coating lead dust.

TABLE A1

MECHANICAL CLEANING

CHEMICAL

STRIPPING

Steel surfaces: Power tool clean to a

SSPC-SP 11 (1.0 mil anchor profile).

Use a suitable chemical stripper to safely remove

15 (Rev-0)

Aluminum surfaces: Power tool clean, using suitable power sanders and abrasive sandpaper with no metallic contents, to remove all existing coatings and rust spots, down to bare metal.

all existing coatings – and expose the bare substrate, in accordance with manufacturer’s instructions.

Known paint strippers meeting the requirements specified in Table A1 include, but are not limited to the following:

1. Franmar LeadOut

2. STRIP-TOX Paint Stripper

3. Aquastrip ACB

4. Smart Strip™ Advanced Paint Remover

WARNING

Paint stripper must be formulated without methylene chloride, chlorinated solvents, phenols, chromates, ammonia or amines.

A2.2.5.3.3.2.2 Waste Disposal. Sample and dispose of generated waste, in accordance with all applicable

Federal, state, and local regulations.

A2.2.5.3.3.3 Post-surface preparation cleaning, inspection, and sampling. Upon completion of any surface involving removal of lead-containing coating (whether during spot abatement or full abatement), do the following, as applicable:

A2.2.5.3.3.3.1 Lead dust clean-up. Clean all lead dust from the worksite by suitable clean-up cleaning methods, or as follows:

Step 1 - debris removal: Remove all gross debris, paint chips, etc. using either a vacuum with a

HEPA filter or by spraying the materials with water in a spray bottle and picking up chips or large pieces of contaminated debris by hand.

Step 2 – vacuum cleaning: Using a suitable HEPA vacuum, clean all affected surfaces, in accordance with the following guidelines:

Begin cleaning with high areas first – with overhead surfaces and bulkheads working downward.

Vacuum all surfaces in the compartment.

Work in the direction furthest from the entry door toward it.

Step 3 – wet cleaning: Following thorough HEPA vacuuming, wash all surfaces with any suitable cleaning detergent following the same cleaning pattern (high to low/ furthest from and toward entrance). Change the cleaning solution as it becomes dirty. Rinse all areas with a fresh cloth/mop.

Do not reuse contaminated mops and cloths. Use a three-bucket system for cleaning. (Detergent solution in first bucket/ rinse water for mop in second/ surface rinse on deck and/or bilge surfaces in third).

Step 4 – vacuum cleaning: Perform a HEPA vacuum again as specified in “Step 2”.

Step 5 – waste disposal: Properly dispose of contaminated materials, in accordance with all applicable Federal, state, and local regulations.

16 (Rev-0)

WARNING

1. Work Wet, Work Smart, and Work Clean. DO NOT GENERATE DUSTS. It is easier to effectively clean an area when dusts are not being generated to resettle on previously cleaned areas. Worker exposures may be high during wet sweeping.

2 A wet/dry HEPA unit is ideal for working with hazardous dust clean up.

3. Lead-contaminated objects that are porous or materials that may suffer damage from water may not be able to be sufficiently decontaminated by these methods and should be discarded.

A2.2.5.3.3.3.2 Visual inspection. Conduct a visual inspection, in the presence of the Coast Guard Inspector, to ensure that none of the following is present:

Visible coatings on any part of the substrate, including pitted areas.

Dust (as applicable).

Cleaning material haze.

A2.2.5.3.3.3.3 Post-lead abatement clearance. Upon acceptance of the visual inspection results by the COR, do the following:

A2.2.5.3.3.3.3.1 Wipe sampling.

A2.2.5.3.3.3.3.1.1 Conduct wipe sampling clearance testing, in accordance with ASTM 6966, as designated by the Coast Guard Inspector, in three locations in the affected space, to ensure that there exist no lead dust residues in excess of the below-listed concentrations, as specified below. Submit a CFR with sample results

40 micrograms/square foot (mcg/ft 2) - for berthing and/or food preparation areas.

200 micrograms/square foot (mcg/ft 2) - for all other areas.

A2.2.5.3.3.3.3.1.2 If a Change Request (CR) has been authorized and released, conduct wipe sampling clearance testing in additional locations, as designated on the CR.

A2.2.5.3.3.3.3.2 Laboratory analysis. Ensure that dust lead samples are analyzed by a laboratory certified by the National Lead Laboratory Accreditation Program (NLLAP) or the American Industrial Hygiene

Association.

A2.2.5.3.3.3.4 Additional cleaning. If laboratory analysis shows lead concentrations in excess of the thresholds specified above, then perform lead dust cleaning, and take subsequent wipe samples until the concentration of lead falls below the above standards.

A2.2.5.3.3.3.5 Additional wipe clearance testing. Be aware that the Coast Guard reserves the right to coordinate additional wipe clearance testing, at no cost to the contractor, to verify the sample results.

WARNING

All additional wipe clearance testing conducted by the Coast Guard must be witnessed by the Contractor, to verify where and how samples were collected – and thus, prevent contract disputes.

17 (Rev-0)

A2.2.5.3.4 Post-surface preparation and abatement requirements. Prior to applying primer coat, do the following, in accordance with SFLC Std Spec 6310, paragraphs 3.1.8.7 (Flash rusting/surface oxidation limitations) and 3.1.8.6 (Hydrocarbon substance removal), respectively.

Remove all flash rusting, as applicable.

Remove all grease and oil surface contaminants.

NOTE

The following paragraphs are not applicable, when lead-containing coating is removed by non-dust generating methods that include (but are not limited to) chemical stripping, water-jetting, mechanical-cleaning with vacuum attachment (with zero dust discharge):

A2.2.5.3.3.3.1 Lead dust clean-up

A2.2.5.3.3.3.3 Clearance sampling

A2.2.5.3.3.3.3.1 Wipe sampling – lead dust.

A2.2.5.3.3.3.3.2 Laboratory analysis

3.6.4.1 SFLC Std Spec 0000, page 22, paragraph 3.3.3.1 NOTE. Add "Flame-retardant polyethylene deck plate with a non-slip diamond pattern from 10 to 40mil thickness" to body of Note.

3.6.4.2 SFLC Std Spec 0000, page 3, bullet “ISC.” Delete “lead-contaminated materials.”

3.6.4.3 SFLC Std Spec 0000, page 27, after Note box under paragraph 3.3.13.1.2 add the following paragraphs:

“3.3.13.1.3 Dock and Sea trials. The Contractor shall conduct dock trials to test the work performed during the contract when required by individual work items (see 3.3.13 Tests and Inspections). This shall include operational tests or inspections, as appropriate, of all machinery, piping, wiring, insulation, preservation work, deck coverings, and any other article removed, moved, disturbed, or damaged by the Contractor in accomplishing the work outlined in the specification. Schedule for these specific dockside tests or inspections shall be included within the planning document (see 3.2.5 Planning document).

3.3.13.1.3.1 The Contractor shall provide a pier facility or allow the vessel to move to a Coast Guard pier to support dock trials. The Contractor shall not conduct trials that require the vessel to be waterborne while the vessel is floating inside a dock (e.g., graving dock, floating drydock).

3.3.13.1.3.2 Sea trials to conduct equipment operational tests are not required unless a Sea Trial Performance work item is specifically included within the specification.”

3.6.5 SFLC Std Spec 6310, Requirements For Preservation Of Ship Structures, page 10, add “3.1.6.5

Preconstruction Primers. Also known as shop primers, preconstruction primers are used as a temporary coating to protect steel from corrosion during welding, storage, and fabrication. Preconstruction primers shall be removed prior to applying the permanent coating system on all critical coated surfaces. Preconstruction primers may be left in place in other interior areas (such as machinery spaces, habitability spaces, etc.) if they are intact, uncontaminated, and compatible with the overcoating system.”

3.6.5.1 Std Spec 6310, Appendix B, page B12 , the formatting for of Notes 17-19 change and add as per the following:

SFLC Std Spec 6310, Cutter And Boat Interior Painting Systems, Appendix B12, Note 17, delete sentence, “Persistent corrosion in a particular area of an aluminum bilge may dictate the need for a protective High Build Epoxy coating to be applied to that local area.”

SFLC Std Spec 6310, Cutter And Boat Interior Painting Systems, Appendix B12, Note 18, replace entire note with “Persistent corrosion in a particular area of an aluminum bilge may dictate the need

18 (Rev-0) for a protective High Build Epoxy coating to be applied to that local area. “

SFLC Std Spec 6310, Cutter And Boat Interior Painting Systems, Appendix B12, Note 19, replace entire note with “Painting plastic surfaces is highly discouraged, but after it is done once, it must be maintained.”

SFLC Std Spec 6310, Cutter And Boat Interior Painting Systems, Appendix B12, Add Note “20.

For aluminum surfaces, remove all oil, grease, dirt, metal oxides (corrosion products) and other foreign material by cleaning per SSPC-S

3.6.6 SFLC Std Spec 8635, Temporary Services, page 2, delete paragraph 3.3.2.2.

4. NOTES

4.1 QA inspection forms. QA inspection forms (QA-1 thru QA-5), required in SFLC Std Spec 0000 to be completed and submitted during preservation of “critical-coated surfaces”, are provided at the end of this document.

19 (Rev-0)

QA-1 - QUALITY ASSURANCE INSPECTION FORM

(PRESERVATION CHECKLIST)

Vessel Name Hull # Work Item # Work Item Title

Location of Work (incl. frame #’s) Area (sqft)

CHECKPOINT 1 – COATING SYSTEM COMPLIANCE

Ensure all coatings are in compliance with SFLC Std Spec 6310, Appendix C.

CHECKPOINT 2 - PAINT STORAGE

Ensure all coatings are kept at a temperature of 65 to 85°F at all times, unless otherwise specified by the coating mfgr.

CHECKPOINT 3 - AMBIENT CONDITIONS

Ensure surface and surrounding temperatures are each between 50 and 90°F for water-containing coatings, and 35 and 95°F for other coatings, unless otherwise specified by the coating manufacturer(s).

Ensure maximum relative humidity (RH) is as follows, from surface preparations through final curing of topcoat: 50% for tanks, voids, and vent plenum; and 85% for all other areas, unless otherwise specified by manufacturer(s).

Ensure surface temperature is at least 5°F above the dew point, unless otherwise specified by the coating mfgr.

CHECKPOINT 4 - PRE-SURFACE PREPARATION

Remove surface contaminants (soluble salts, loose rust, mud, and marine growth) with low pressure fresh water wash down

(maximum 5,000 psi). If oil and grease are present, perform solvent cleaning, as per SSPC SP-1.

Verify equipment setup, blast media, and surface preparation methods match designated test coupon.

CHECKPOINT 5 - SURFACE PREPARATION

Verify environmental conditions (see CHECKPOINT 3).

Ensure cleanliness of prepared surface is as per specification (i.e.: SSPC SP-12, SP-11, SP-10…).

Verify surface anchor profile using ASTM D4417-Methods B or C against SFLC Std Spec 6310. Conduct profile readings at a minimum of 5 locations for the first 1000-sqft area, and 2 locations for each succeeding 1000-sqft area.

Measure soluble salt conductivity in accordance with SSPC-Guide 15. Conduct 5 measurements per each 1000-sqft area (max.

threshold: 70 microsiemens/cm for non-submerged surfaces, 30 microsiemens/cm for submerged surfaces).

CHECKPOINT 6 - PRIMER COAT APPLICATION

Verify environmental conditions (see CHECKPOINT 3).

Verify proper mixing and stand-in (induction) times.

Ensure no paint is applied when the temperature is expected to drop to freezing before the paint has dried.

Ensure surfaces are completely dry, unless otherwise allowed by the coating manufacturer(s).

Verify wet film thickness (WFT) at random, to prevent under or over application. Verify final DFT.

Brush out all runs, sags, drips, and puddles.

Perform visual inspection for holidays and other defects.

CHECKPOINT 7 – STRIPE COAT APPLICATION

Verify environmental conditions (see CHECKPOINT 3).

Ensure overcoating window is as per manufacturer’s instructions.

After primer coat (mist coat after inorganic zinc), brush-apply un-thinned coat of same primer paint over edges, weld seams, cut-outs, and areas of complex geometries @ 3-4 mils wet film thickness (WFT).

CHECKPOINT 8 – TOP COAT APPLICATION

Verify environmental conditions (see CHECKPOINT 3).

Ensure overcoating window is as per manufacturer’s instructions.

Verify proper mixing and stand-in (induction) times, as applicable.

Verify wet film thickness at random, to prevent under or over application.

Brush out all runs, sags, drips, and puddles.

CHECKPOINT 9 – FINAL INSPECTION

Verify final system dry film thickness. Conduct 5 sets of 3 readings for each of the first 3 100-sqft areas, followed by 5 sets of 3 readings for each succeeding 1000-sqft area.

Ensure that system cure is in accordance with manufacturer's recommendation for intended service.

Ensure potable water tank exhaust ventilation is maintained continuously from and during coating application through final system cure, to exhaust all solvent to the atmosphere and to prevent solvent entrapment.

For immersion coatings (including tank U/W body), record date and time of the following events:

Final coat application: _____/_____; Return to service or removal from environment controls: _____/_____

CHECKPOINT 10 – RECORD KEEPING

Complete, sign, and submit all provided QA Inspection Forms.

Name of QP-1/NACE Inspector Signature Cert. # Date / Time

20 (Rev-0)

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.

DATE &

TIME

ACTIVITY

(Surface preparation, primer coat, barrier coat, top coat, etc…)

LOCATION

(Frame & Deck, relation to equipment, etc.)

TEMPERATURE

% REL.

HUMID-

ITY DEW

PT.

SURFACE AMBIENT

ΔT

| DP -

Surface |

21 (Rev-0)

QA-3a - QUALITY ASSURANCE INSPECTION FORM

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

Location of Work (Frame References) Area (sqft)

SURFACE PREPARATION METHOD

PROFILE ACHIEVED (mils)

Min Max Mean

SSPC-SP-10/NACE No. 2

SSPC-SP-12/NACE No. 5

SSPC-SP-3

SSPC-SP-11

SSPC-SP-11 (inaccessible area)

Brush-blasting (non-metallic substrate)

Abrasive Manufacturer and 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

Reading:__________ mils

Place Surface Profile

Replica Tape Here

Reading:__________ mils

Place Surface Profile

Replica Tape Here

Reading:__________ mils

Place Surface Profile

Replica Tape Here

Reading:__________ mils

Place Surface Profile

Replica Tape Here

Reading:__________ mils

Place Surface Profile

Replica Tape Here

Reading:__________ mils

Place Surface Profile

Replica Tape Here

Reading:__________ mils

Place Surface Profile

Replica Tape Here

Reading:__________ mils

Place Surface Profile

Replica Tape Here

Reading:__________ mils

Place Surface Profile

Replica Tape Here

Reading:__________ mils

Place Surface Profile

Replica Tape Here

Reading:__________ mils

Place Surface Profile

Replica Tape Here

Reading:__________ mils

Place Surface Profile

Replica Tape Here

Reading:__________ mils

Place Surface Profile

Replica Tape Here

Reading:__________ mils

Place Surface Profile

Replica Tape Here

Reading:__________ mils

Mean Mil Reading (IAW ASTM D4417-Method C) for above 15 readings: ______________

22 (Rev-0)

QA-3b - QUALITY ASSURANCE INSPECTION FORM

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

SURFACE PREPARATION METHOD

PROFILE ACHIEVED (mils)

Min Max Mean

SSPC-SP-10/NACE No. 2

SSPC-SP-12/NACE No. 5

SSPC-SP-3

SSPC-SP-11

SSPC-SP-11 (inaccessible area)

Brush-blasting (non-metallic substrate)

Abrasive Manufacturer and 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 _____ mils _____ mils _____ mils _____ mils

Reading: _____ mils _____ mils _____ mils _____ mils _____ mils

Reading: _____ mils _____ mils _____ mils _____ mils _____ mils

Reading: _____ mils _____ mils _____ mils _____ mils _____ mils

Reading: _____ mils _____ mils _____ mils _____ mils _____ mils

Reading: _____ mils _____ mils _____ mils _____ mils _____ mils

Reading: _____ mils _____ mils _____ mils _____ mils _____ mils

Reading: _____ mils _____ mils _____ mils _____ mils _____ mils

Reading: _____ mils _____ mils _____ mils _____ mils _____ mils

Reading: _____ mils _____ mils _____ mils _____ mils _____ mils

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

_____ mils _____ mils _____ mils _____ mils _____ mils

23 (Rev-0)

QA-4 - QUALITY ASSURANCE INSPECTION FORM

(SURFACE SOLUBLE SALT CONDUCTIVITY LOG)

SOLUBLE SALT CONDUCTIVITY MEASUREMENTS IAW SSPC-GUIDE 15

DATE TEST LOCATIONS

CONDUCTIVITY

(microsiemens/cm)

24 (Rev-0)

QA-5 - QUALITY ASSURANCE DATA FORM

(COATING THICKNESS)

(Use one sheet for each sequence)

Coating Mfg Product Name Batch # Induction

Time

Coating System Sequence

(Primer/Touchup/3rd Coat, etc.)

DRY FILM THICKNESS (DFT) MEASUREMENTS IAW SSPC-PA 2

SPOT 1 2 3 4 5

AVERAGE

VALUE

*BASE METAL

READING (BMR)

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

Location (Frame Reference): ___________________

SPOT 1 2 3 4 5

Overall Avg. DFT

ADJUSTMENTS

1 Avg. BMR Deviation

3 Before

Adjustments

After Adjustments

Avg.

Location (Frame Reference): ___________________

SPOT 1 2 3 4 5

Overall Avg. DFT

ADJUSTMENTS

1 Avg. BMR Deviation

3 Before

Adjustments

After Adjustments

Avg.

Location (Frame Reference): ___________________

SPOT 1 2 3 4 5

Overall Avg. DFT

ADJUSTMENTS

1 Avg. BMR Deviation

3 Before

Adjustments

After Adjustments

Avg.

Application Method (Airless, Conventional Spray, Rolled) Average DFT

25 (Rev-0)

07400_AKP_1013_BOAT_FLT

WORK ITEM 1: General Welding, Provide

1.1 Intent. This work item describes the requirements for the Contractor to provide general welding.

Location Welding/ Fabrication QTY/ Area

Line Locker – Port Aft

Blkhd

Crop out, fabricate, and renew corroded frames and stifners

Aprox 5’

Main Deck - 16 Bow Life

Line Stanchions

Remove steel Stanchions at doubler plate. Fabricate new

S/S Stanchions with GFE piping, gussets, and pig tails.

Install new S/S stations.

16 ea.

Main Deck – 9 Stern Life

Line Stanchions and Hand

Rail

Remove steel Stanchions at doubler plate. Remove steel handrails at taff rail weld joints. Fabricate new S/S

Stanchions with GFE piping, gussets, and pig tails. Install new S/S stations and S/S handrails.

9 ea.

Aft Deck – Aft Steering

Scuttle Hatch Hinges

Crop off existing hinge tabs and renew with stainless hinge tabs

4 on the coaming

Main Deck

Scuttle Hatch

Renew hatches in kind 02; one on bow & one on stern

Passenger Compartment –

Deck – Stbd Aft Corner

Crop out and renew a 6 sq ft section of corroded aluminum deck. Drill new mounting holes in existing configuration.

FR 9 transverse to inboard hull; along longitudinal fwd to FR 7

26 (Rev-0)

Location Welding/ Fabrication QTY/ Area

Taft/Tow Rail Upper Horn

Ends

Renew in kind with SS Aft Deck

Tow Line Snap-back

Protection Screen

Renew in kind Main Deck

Line Locker Weld Repair Center Hatch Tabs Hatch and Coaming Tabs

1.2 Government-furnished property.

None.

2. REFERENCES

COAST GUARD DRAWINGS

Coast Guard Drawing 52 MLBS 1702-1, Rev B, Mast Assy & Navigation Lights

Coast Guard Drawing 52 MLBS 1202-1, Rev E, Towing Rail & Life Rails (52312 - 52315)

COAST GUARD PUBLICATIONS

Coast Guard Technical publication (TP) 4934 August 2009, Small Boat Diagrams for Hotwork SWBS Group 74, Section A

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2012, General Requirements

Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2012, Welding and Allied

Processes

Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2012, Requirements for

Preservation of Ship Structures

None

27 (Rev-0)

3.1 General.

3.1.1 CIR.

3.1.2 Tech Rep.

Not applicable.

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 in the vicinity of 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) with the exception of the tow lines in the line locker. Coast Guard Unit personnel will be responsible for the removal and installation of tow lines.

3.2 Requirement. The Contractor shall provide general welding, including but not limited to, fabrication, brazing, inspection, plate renewal, crack repair, overlay, and associated processes on Coast Guard vessels and equipment in accordance with TP 4934 and SFLC Std Spec 0740.

3.3 Touch-up preservation, general. The Contractor shall prepare and coat all new and disturbed exterior and interior surfaces, as applicable, to match existing adjacent surfaces in accordance with SFLC Std Spec 6310, paragraph 3.1.13

(Touch-ups and minor coating repairs.)

4. NOTES

This section is not applicable to this work item.

28 (Rev-0)

WORK ITEM 2: Hull Plating (U/W Body), Inspect

1.1 Intent. This work item describes the requirements for the Contractor to inspect/survey the vessel’s Under Water

(U/W) hull plating, including U/W appendages and coating system.

2. REFERENCES

COAST GUARD DRAWINGS

Coast Guard Drawing 52 MLBS 0103-5, Rev B, Profiles and General Arrangements

Coast Guard Drawing 52 MLBS 0700-1, Rev B, Docking Plan (52312-52315)

Coast Guard Drawing 52 MLBS 4823-1, Rev B, Seachest & Details (52312-52315)

Coast Guard Drawing 52 MLBS 4823-2, Rev E, Fathometer Sea chest & Details (52312-52315)

COAST GUARD PUBLICATIONS

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2012, General Requirements

OTHER REFERENCES

ASTM International (ASTM) D4138, 2007, Standard Practices for Measurement of Dry Film Thickness of

Protective Coating Systems by Destructive, Cross-Sectioning Means

The Society for Protective Coatings (SSPC), June 1996, Paint Application Specification No. 2 (PA-2), Measurement of Dry Coating Thickness with Magnetic Gages

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

3.2.3 Void Inspection

Not applicable.

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 in the vicinity of 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

29 (Rev-0)

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

3.3.5 (Interferences).

3.2 Inspection. The Contractor shall accompany the Underwater Hull Inspection Board (UWHIB) in the performance of the below inspection tasks, as applicable, using the drawings listed in Section 2 (References) as guidance. The Contractor shall provide the following, to facilitate the UWHIB in assessing the condition of the designated U/W hull components and systems:

A hull repair supervisor and a marker.

Temporary staging and other necessary equipment, as applicable, for ensuring safe access to all areas of the

U/W hull.

NOTES

1. The COR will convene the UWHIB as soon as possible after the vessel has been dry-docked and before any work (except U/W hull cleaning/wash down) is performed on the U/W hull and appendages.

2. Some of the components and/or systems addressed in this work item may not be applicable to all vessel classes.

3.2.1 Hull plating.

3.2.1.1 The Contractor shall inspect the condition of the hull plating (including thruster tunnel plating, as applicable), for the presence of marine growth, deformation, and any evidence of major corrosion or electrolytic action.

3.2.1.2 The Contractor shall inspect the hull and keel areas, report on the condition of butt-welded seams, doubler plates, lap seams, and for any signs of damaged plating or unusual waviness in the plating.

3.2.2 Sea chests and all other cooling system intake components. The Contractor shall inspect all sea chests, tunnels, hull openings, and grates for general appearance, loose, damaged, or missing grates, loose or missing fasteners, condition of sea strainers and lockwire on bolts, marine growth on grating slots, and any obstructions in the openings that might prevent proper suction and discharge of water. Inspect all flange welds inside seachest for erosion and electrolysis, submit a CFR. Install strainer plates prior to floating and after specified work, such as cleaning, blasting, preparation, and painting, is completed, in accordance with CG Dwg 52-MLBS 4823-1.

3.2.3 Void Inspection. In the presence of the Coast Guard Inspector, remove the void plugs in the bilge keels, skeg, fathometer seachest fairing plate, anchor locker void, struts, and guards and check for the presence of water. Submit a

Critical Inspection Report (CIR).

3.2.4 Reassembly and reinstallation. Upon completion of all inspections and authorized repairs, the Contractor shall accomplish the following tasks:

3.2.4.1 Preservation of void internal surfaces. Preserve internal surfaces, as follows:

Fill all appendage interior surfaces with a rust preventive compound conforming to MIL-PRF-16173, Class II, Grade 3, to coat all surfaces.

Drain, collect, and dispose of remaining compound in accordance with all applicable Federal, state, and local regulations.

Ensure that the coated surfaces are left exposed to the atmosphere for 24 hours to allow for adequate drying.

3.2.4.2 Chase the hull insert threads of all plugs.

Renew stainless steel, Type 316 and Monel drain plugs (as applicable) in place of those removed.

Coat new plugs prior to installation with a sealing and…