Attachment 2 - SpecificationCGC MOBILE BAY (WTGB 140) DD.pdf

USCGC MOBILE BAY (WTGB 103)

USCG 120 BARGE (12001)

SPECIFICATION FOR DRYDOCK REPAIRS

FY2023

Developed By: Bryan G Wright

(Rev-2, 09 March 2023)

USCGC MOBILE BAY (WTGB-140) DRYDOCK AVAILABILITY FY2023

ii (Rev-2)

TABLE OF CONTENTS

Revisions Record .......................................................................................................................................... iv Consolidated List of References ................................................................................................................... vi Consolidated List of Government-furnished Property .............................................................................. xiii Consolidated List of Critical Inspection Items ............................................................................................ xv Principal Characteristics - Tug, IceBreaking .............................................................................................. xvi Principal Characteristics - Barge .............................................................................................................. xvii General Requirements WORK ITEM 1: Hull Plating, U/W Body, Inspect WORK ITEM 2: U/W Body, Preserve, 100 percent - Tender WORK ITEM 3: Hull Plating Freeboard, Preserve, 100 Percent - Tender WORK ITEM 4: Bubbler Channels, Inspect WORK ITEM 5: Fenders, Bow, Inspect and Repair - Tug WORK ITEM 6: Appendages, U/W, Leak Test WORK ITEM 7: Propulsion Shaft Rope Guards, Inspect WORK ITEM 8: Appendages, U/W, Internal, Preserve WORK ITEM 9: Tanks, MP Fuel Stowage and Overflow, Clean and Inspect WORK ITEM 10: Tanks, MP Fuel Service, Clean and Inspect WORK ITEM 11: Tanks, Ballast, Clean and Inspect WORK ITEM 12: Main Diesel Engine (MDE) Lube Oil Cooler, Clean, Inspect, and Hydro WORK ITEM 13: Both Main Diesel Engine and Generator Resilient Mounts, Renewal WORK ITEM 14: Propulsion Shaft Seals, Mechanical Overhaul and Inflatable Renew WORK ITEM 15: Propulsion Shafting; Remove, Inspect, and Reinstall WORK ITEM 16: Propulsion Shaft Bearings, External, Check Clearances WORK ITEM 17: Stern Tube Bearing Staves, Renew WORK ITEM 18: Propeller, Remove, Inspect, and Reinstall WORK ITEM 19: Circuit Breakers (60 Hz), Inspect and Test WORK ITEM 20: Fathometer Transducer, Renew WORK ITEM 21: Sea Valves and Waster Pieces, Overhaul Or Renew WORK ITEM 22: Sea Strainers, Simplex, All Sizes, Clean and Inspect WORK ITEM 23: Fuel Manifold, Overhaul WORK ITEM 24: Rudder Assembly, Remove, Inspect And Reinstall WORK ITEM 25: Rudders, Preserve, 100 Percent WORK ITEM 26: Rudder Stock Bearings (Upper And Lower), Renew WORK ITEM 27: Hull Fittings (Weight Handling Rigging Hardware), Inspect and Test WORK ITEM 28: Anchor Windlass, Inspect and Service WORK ITEM 29: Anchor Chain and Ground Tackle, Preserve WORK ITEM 30: Anchors, Preserve WORK ITEM 31: Hawse Pipes, Preserve WORK ITEM 32: Grey Water Holding Tanks, Clean and Inspect WORK ITEM 33: Sewage Holding Tanks, Clean and Inspect WORK ITEM 34: Tanks (Sewage Holding), Preserve, 100 percent WORK ITEM 35: Tanks, Ballast, Preserve, 100 Percent WORK ITEM 36: Chain Locker, Preserve, 100 Percent WORK ITEM 37: Tanks, Grey Water Holding, Preserve, 100 Percent WORK ITEM 38: Tanks, Potable Water Preserve, 100 Percent WORK ITEM 39: Decks - Exterior, Preserve, Non-Skid Broadcast Grit System WORK ITEM 40: Cathodic Protection, Zinc Anodes, Renew, WORK ITEM 41: Drydock iii (Rev-2)

WORK ITEM 42: Temporary Services, Provide – Tender and Barge WORK ITEM 43: Sea Trial Performance, Support, Provide WORK ITEM 44: Tanks, Ballast, Clean and Inspect - Barge WORK ITEM 45: Heat Exchangers, Clean, Inspect And Hydro - Barge WORK ITEM 46: Fathometer Transducer, Renew - Barge WORK ITEM 47: Tanks, Ballast, Preserve, 100 Percent - Barge WORK ITEM 48: Tanks, Grey Water Holding, Preserve, 100 Percent - Barge WORK ITEM 49: U/W Body, Preserve, 100 percent - Barge WORK ITEM 50: Hull Plating Freeboard, Preserve, 100 Percent - Barge WORK ITEM 51: Sea Strainers, Duplex, All Sizes, Overhaul - Barge WORK ITEM 52: Thruster Unit, Overhaul - Barge WORK ITEM 53: Decks – Exterior (Buoy or Construction Deck), Preserve 100% WORK ITEM 54: Bilge and Ballast Valves, Overhaul or Renew WORK ITEM 55: Bilges, Preserve WORK ITEM 56: Hatches, Renew WORK ITEM 57: Hull Repair Barge WORK ITEM 58: Wireway Channel Repair Barge WORK ITEM 59: Bubbler Air Piping, Renewal WORK ITEM 60: Barge Salt Water Cooling Duplex Strainer, Renew WORK ITEM 61: Water Mist Tank Low Level Switch, Relocate WORK ITEM 62: Steering Gear (General), Inspect WORK ITEM 63: Hull Fittings (Mooring and Towing), Inspect and Test - Barge WORK ITEM 64: Grey Water Piping, Clean and Flush WORK ITEM 65: Sewage Piping, Clean and Flush WORK ITEM 66: Tank (Water Mist), Preserve (100%) WORK ITEM 67: Hull Plating, U/W Body, Inspect - Barge WORK ITEM 68: Hull Plating, U/W Body, Ultrasonic Testing - Barge WORK ITEM 69: Tanks, Potable Water Preserve, 100 Percent - Barge WORK ITEM 70: Tanks, Sewage Holding, Preserve, 100 percent - Barge WORK ITEM 71: Cathodic Protection, Zinc Anodes, Renew - Barge WORK ITEM 72: Point of Use Potable Water Filters, Install - Barge WORK ITEM 73: Anchor Chain and Ground Tackle, Preserve - Barge WORK ITEM 74: Anchors, Preserve - Barge WORK ITEM 75: Drydock - Barge WORK ITEM 76: Exhaust Weld Repair WORK ITEM 77: Barge Fuel Gauge Valve, Renew WORK ITEM 78: Vent Ducts, Engine and Motor Room, All, Commercial Cleaning WORK ITEM 79: Tanks, MP Fuel Stowage and Overflow, Clean and Inspect - Barge WORK ITEM 80: Tanks, MP Fuel Service, Clean and Inspect - Barge WORK ITEM 81: Lead Dust, Clean WORK ITEM 82: Hull Plating, Side Scan, Ultrasonic Testing WORK ITEM 83: Tanks, Fuel, Preserve, 100 Percent - Barge WORK ITEM 84: Tanks, Sewage Vacuum Collection, Preserve, 100 Percent - Barge WORK ITEM 85: Grey Water Holding Tanks, Clean and Inspect - Barge WORK ITEM 86: Sewage Holding Tanks, Clean and Inspect - Barge WORK ITEM 87: Fixed Ballast (Lead Ingots), Encapsulate WORK ITEM 88: Handrails and Stanchions, Inspect, Repair or Renew WORK ITEM 89: Tank Level Indicators, Repair WORK ITEM 90: Compartment Insulation and Sheathing, Renew WORK ITEM 91: Fenders, Inspect and Repair - Barge WORK ITEM 92: Boat Deck Stanchion Renew iv (Rev-2)

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

2/17/2023 1 86 Updated whole work item verbiage

2/17/2023 0 54 Removed work item and numbered for Rev-1

2/17/2023 0 88 Removed work item and renumbered for Rev-1

3/7/2023 1 05 Work Item repaired and drawing added

3/7/2023 1 References Consolidated list corrected

3/7/2023 1 CIR Updated CIR List

3/7/2023 1 64 & 65 Updated drawings

3/7/2023 1 70 & 86 Corrected tank number

3/7/2023 1 04 Removed fuel stowage requirement 3.1.5.1

3/7/2023 1 09 Removed fuel stowage requirement 3.4.1.2

Increased fuel removal to 16,000.00

3/7/2023 1 10 Removed fuel stowage requirement 3.4.1.2

3/7/2023 1 55 Updated Table 1

100 UT Shots

3/7/2023 1 79 Updated Table 1

Removed fuel stowage requirement 3.4.1.2

3/7/2023 1 80 Updated Table 1

Removed fuel stowage requirement 3.4.1.2

3/7/2023 1 11 Corrected tank number

3/7/2023 1 35 Corrected tank number v (Rev-2)

3/9/2023 2 92 Added Boat Deck Stanchion Renew work item

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.

vi (Rev-2)

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 140-WTGB-801-006, Rev E, Tank Sounding and Capacity Tables

Coast Guard Drawing 120 Barge 120-001, Rev B, Longitudinal and Transverse Bulkheads

Coast Guard Drawing 120 BARGE 501-001, Rev B, Piping Specifications

Coast Guard Drawing 120 Barge 400-001, Rev-E, IC &Navigation Sys Wiring Diagram

Coast Guard Drawing 120 BARGE 533-001, Rev C, Potable Water System

Coast Guard Drawing 120 BARGE 536-001, Rev D, Auxiliary Water Cooling System

Coast Guard Drawing 120 BARGE 540-001, Rev C, Fuel Oil Service and Transfer System

Coast Guard Drawing 120 Barge 581-001, Rev C , Anchor Handling Arrangements and Details

Coast Guard Drawing 120 BARGE 601-001, Rev C, General Arrangement and Profile

Coast Guard Drawing 120 BARGE 801-001, Rev -, Lines Plan

Coast Guard Drawing 120 BARGE 801-003, Rev -, Curves of Form

Coast Guard Drawing 120 Barge 801-004, Rev A, Tank Capacity Curves

Coast Guard Drawing 120 Barge 801-005, Rev A, Tank Sounding Tables

Coast Guard Drawing 120 BARGE-801-006, Rev B, 120FT Aids to Navigation (ATON) Servicing Barge

Docking Plan

Coast Guard Drawing 120 CGB 633-001, Rev B, Zinc Anodes

Coast Guard Drawing 120-BARGE 111-002, Rev B, Side, Bulwark Plating & Framing

Coast Guard Drawing 120-BARGE 111-001, Rev C, Bottom Framing and Plating

Coast Guard Drawing 120-BARGE 120-1, Rev B, Longitudinal & Transverse Bulkheads

Coast Guard Drawing 120-BARGE 130-1, Rev D, Main & Foc'sle Decks

Coast Guard Drawing 120-BARGE 320-2, Rev F, Electrical One-Line Diagram

Coast Guard Drawing 120-BARGE 321-1, Rev B, Wireway

Coast Guard Drawing 120-BARGE 540-001, Rev C, Fuel Oil Service & Transfer System

Coast Guard Drawing 120-BARGE 568-001, Rev A, Bow Thruster Arrangement

Coast Guard Drawing 120-BARGE 601-001, Rev C, General Arrangement and Profile

Coast Guard Drawing 120-BARGE 611-001, Rev C, Hull Fittings

Coast Guard Drawing 120-BARGE 631-001, Rev C, Paint and Deck Covering Schedule

Coast Guard Drawing 120-BARGE 802-2, Rev -, Outboard Profile & Main Deck Plan

Coast Guard Drawing 120-BARGE-573-01, Snubbing Winch Arrangement vii (Rev-2)

Coast Guard Drawing 120-CGB 533-1, Rev B, Potable Water System

Coast Guard Drawing 120-CGB 593-1, Rev C, Sewage & Plumbing Drains

Coast Guard Drawing 120-CGB 801-4, Rev A, Tank Capacity Curves

Coast Guard Drawing 120-CGB 801-5, Rev A, Tank Sounding Tables

Coast Guard Drawing 140 WTGB 562-1, Rev A, Rudders

Coast Guard Drawing 140 WTGB 562-2, Rev E, Rudder Stock Bearing Details

Coast Guard Drawing 140 WTGB 243-2, Rev B, Propulsion Shafting Arrangement

Coast Guard Drawing 140 WTGB 243-3, Rev -, STERN TUBE SEAL (TYPE FSE)

Coast Guard Drawing 140 WTGB 244-1, Rev -, Aft Stern Tube Bearing 13 3/4" Dia. Shaft

Coast Guard Drawing 140 WTGB 111-001, Rev -, Shell Expansion

Coast Guard Drawing 140 WTGB 114-001, Rev -, Bubbler Structure

Coast Guard Drawing 140 WTGB 114-003, Rev -, Rudder Guard

Coast Guard Drawing 140-WTGB 114-004, Rev -, Bow Fender Installation

Coast Guard Drawing 140 WTGB 116-001, Rev -, Longitudinal Framing and Side Girder

Coast Guard Drawing 140 WTGB 117-001, Rev -, Transverse Frames

Coast Guard Drawing 140 WTGB 120-001, Rev -, Structural Bulkheads

Coast Guard Drawing 140 WTGB 149-001, Rev -, Tank Tops and Flats

Coast Guard Drawing 140 WTGB 184-003, Rev -, Fathometer Transducer Install

Coast Guard Drawing 140-WTGB191-001, Rev-D, Fixed Ballast Arrangement

Coast Guard Drawing 140 WTGB 192-001, Rev -, Compartment Testing Diagram

Coast Guard Drawing 140 WTGB 201-1, Rev B, Machinery Arrangement

Coast Guard Drawing 140 WTGB 245-2, Rev A, Propeller & Offsets 140 Ft Wytm Cutter (All)

Coast Guard Drawing 140 WTGB 245-3, Rev -, One Single Blade 140 Ft Wytm Cutter Alum Patt

Coast Guard Drawing 140 WTGB 256-001, Rev A, Sea Water Circulating Cooling System Diagram

Coast Guard Drawing 140 WTGB 256-2, Rev -, Seawater Cooling System Arrangement & Details

Coast Guard Drawing 140 WTGB 521-002, Rev -, Firemain System, Arrangements and Details

Coast Guard Drawing 140 WTGB 521-003, Rev A, Firemain, System Diagram

Coast Guard Drawing 140 WTGB 529-002, Rev -, Bilge and Clean Ballast, System Diagram

Coast Guard Drawing 140 WTGB 529-004, Rev -, Bilge and Ballast, Arrangements and Details

Coast Guard Drawing 140 WTGB 551-2, Rev D, Bubbler Air System Diagram

Coast Guard Drawing 140 WTGB 551-5, Rev -, Bubbler Compressed Air A & D

Coast Guard Drawing 140 WTGB 551-6, Rev H, Bubbler Compressed Air Mods

Coast Guard Drawing 140 WTGB 561-004, Rev H, Hydraulic Steering System Arrangement Jastram

Coast Guard Drawing 140 WTGB 561-005, Rev B, Steering System Diagram

Coast Guard Drawing 140 WTGB 562-001, Rev -, Rudder

Coast Guard Drawing 140 WTGB 801-001, Rev B, Outboard Profile

Coast Guard Drawing 140 WTGB 801-004, Rev -, General Arrangement Below Main Deck

Coast Guard Drawing 140 WTGB 801-008, Rev -, Docking Plan

Coast Guard Drawing 140 WTGB 801-009, Rev -, Curves of Form

Coast Guard Drawing 140 WTGB 839-002, Rev -, Lines and Offsets

Coast Guard Drawing 140-WTGB 123-2, Rev B, Structural Mods Incidental to Water Mist Tank 4-24-1-

W viii (Rev-2)

Coast Guard Drawing 140-WTGB 259-001, Rev -, Diesel Exhaust Systems Arr & Dets

Coast Guard Drawing 140-WTGB 528-002, Rev A, Sanitary & Deck Drains Diag

Coast Guard Drawing 140-WTGB 528-003, Rev A, Sanitary & Deck Drains A&D

Coast Guard Drawing 140-WTGB 528-004, Rev A, Grey Water Mods & Tank Transition

Coast Guard Drawing 140-WTGB 555-2, Rev C, Water Mist System Installation A&D

Coast Guard Drawing 140-WTGB 555-4, Rev C, Water Mist System Diagram

Coast Guard Drawing 140-WTGB 801-003, Rev -, Booklet of General Plans

Coast Guard Drawing 140-WTGB 801-003, Rev -, Booklets of General Plans

Coast Guard Drawing 140-WTGB_635_1, Rev -, Insulation, Ceiling, Sheathing & Noise Control

Coast Guard Drawing 140-WTGB_801_4, Rev A, General Arrangement, Below Main Deck

Coast Guard Drawing 140-WTGB_801_5, Rev -, General Arrangement, Main Deck & Above

Coast Guard Drawing 140-WTGB-320-1, Rev. M, Power System One-Line Wiring Diagram.

Coast Guard Drawing 140-WTGB-555-006, Rev. E, Water Mist System Electrical Wiring Diagram

Coast Guard Drawing 140-WTGB-801-004, Rev. A, General Arrangement Below Main Deck

Coast Guard Drawing 140-WTGB-801-1, Rev. B, Outboard Profile.

Coast Guard Drawing FL 3801-67, Rev B, Sheets 1 through 10 of 50 (General Notes – Ductwork) and

Sheet 39 (Handholes for W.T. and N.W.T. Ducts)

Coast Guard Drawing FL 533-001, Rev B, Placard Potable Water Flush

Coast Guard Drawing FL 533-002, Rev A, Point of Use Water Filter Install

Coast Guard Drawing FL 6713-203, Rev -, CRP-V850 Transducer (SS505) Adapter Assembly

Coast Guard Drawing Redlined 140-WTGB-331-3, Rev. D, Lighting & Power System MODS for

Habitability Main Deck & Above.

Coast Guard Fleet Drawing FL 2804-12, Rev -, U.S.C.G. Emblem

Coast Guard Fleet Drawing FL 2804-22, Rev-, Consolidated Visual ID for Cutters

Coast Guard Drawing 140 WTGB 541-003, Rev -, FUEL OIL TRANSFER SYS, A&D

COAST GUARD PUBLICATIONS

Coast Guard Technical Publication (TP) 5458, SWBS 573, Oct 2012, Winch, Radial – Model 50.2PT

Auxiliary Machine Systems

Crane, Hydraulic Extend Boom

Coast Guard Commandant Instruction (COMDTINST) M10360.3, Jun 2006, Coatings and Colors Manual

Coast Guard Maintenance Procedure Card (MPC) WTGB-140_R-S-13370, Water Mist Water Storage

Tank INSP/CLN

Coast Guard Technical Publication (TP) 10000, May 2015, Manufacturer's Instruction Book - SWBS

Group(s) 583, Single Point Davit, – Model PLA-2000

Coast Guard Technical Publication (TP) 3381, Manufacturers Instruction Book-SWBS Group(s) 320-422

Coast Guard Technical Publication (TP) 3385, Manufacturers Instruction Book-SWBS Group(s) 568-573

Coast Guard Technical Publication (TP) 3456, 2001, Ship Information Book, Section B

Coast Guard Technical Publication (TP) 3465, SWBS 437, May 1974, Tank Level Indicating System

(TLI)

ix (Rev-2)

Coast Guard Technical Publication (TP) 3473, SWBS 233, Mar 2001, Main Diesel Engine – Model

38D8-1/8

Coast Guard Technical Publication (TP) 3478, Dec 2020, Manufacturer's Instruction Book-SWBS

Group(s) 324

Coast Guard Technical Publication (TP) 3482, Mar 2001, SWBS 561, HYDRAULIC POWER UNIT -

INSTRUCTIONS

Coast Guard Technical Publication (TP) 3483, Feb 2012, SWBS Groups 580-583, Anchor Windlass

Coast Guard Technical Publication (TP) 3483, SWBS Groups 580-583, Feb 2012, Vertical Capstan

Coast Guard Technical Publication (TP) 4593C, 25-JAN-08, Seal, Shaft - Type F.S.E

Fire Prevention and Response

NAVSEA Dwg 2803-980209, Plates, Label

Surface Forces Logistics Center Standard Specification (SFLC Std Spec) 0740, 2020, Welding and Allied

Processes

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2020, General

Requirements

Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2020, Welding and

Allied Processes

Surface Forces Logistics Center Standard Specification 3020 (SFLC Std Spec 3020), 2020, Overhaul AC

Electrical Motors

Surface Forces Logistics Center Standard Specification 3041 (SFLC Std Spec 3041), 2020, Shipboard

Electrical Cable Test

Surface Forces Logistics Center Standard Specification 3042 (SFLC Std Spec 3042), 2020, Shipboard

Electrical Cable Removal, Relocation, Splice, Repair, and Installation

Surface Forces Logistics Center Standard Specification 5000 (SFLC Std Spec 5000), 2020, Auxiliary

Machine Systems

Surface Forces Logistics Center Standard Specification 5100 (SFLC Std Spec 5100), 2020, Clean

Shipboard Ventilation Systems

Surface Forces Logistics Center Standard Specification 5550 (SFLC Std Spec 5550), 2020, Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2020, Requirements for Preservation of Ship Structures

Surface Forces Logistics Center Standard Specification 8634 (SFLC Std Spec 8634), 2020, Drydocking

Surface Forces Logistics Center Standard Specification 8635 (SFLC Std Spec 8635), 2020, Temporary

Services

Surface Forces Logistics Center Standard Specification 8636 (SFLC Std Spec 8636), 2020, Temporary

Hull Accesses

Surface Forces Logistics Center Technical Standard 3385-573-A, Appleton EB150-75-55S

OTHER REFERENCES

(ASTM) A53, 2005, Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated Welded and Seamless

American National Standards Institute/American Water Works Association (ANSI/AWWA) C652, 2011, Disinfection of Water-Storage Facilities

American National Standards Institute/NSF International (ANSI/NSF) 61, 2008, Drinking Water System

Components - Health Effects x (Rev-2)

American Society for Nondestructive Testing (ASNT) SNT-TC-1A, 2020, Recommended Practice for

Personal Qualification and Certification in Nondestructive Testing

American Society of Mechanical Engineers (ASME) B16.34, 2004, Valves-Flanged, Threaded, and

Welding End

American Society of Mechanical Engineers (ASME) B16.34, 2017, Valves-Flanged, Threaded, and

Welding End

American Welding Society (AWS) D1.1/D1.1M, 2010, Structural Welding Code – Steel

APM: If work is being done in DD, no cofferdam is needed; delete cofferdam protective measures paragraph 3.1.3 and above NAVSEA ref. Above NAVSEA ref is accessible on-line

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

ASTM International (ASTM) D5363, 2016, Standard Specification for Anaerobic Single-Component

Adhesives (AN)

ASTM International (ASTM) F992, 2017, Standard Specification for Valve Label Plates

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

Standards

Code of Federal Regulations (CFR) Title 29, Part 1910, Subpart Z, 1910.1025, 2011, Toxic and

Hazardous Substances-Lead

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; Anti-seize, Zinc Dust-

Petrolatum

Commercial Item Description (CID) A-A-59316, 2003, Abrasive Materials for Blasting

Commercial Item Description (CID) A-A-59588, 2013, Rubber Silicone

Drawing Appleton Marine AMD-2903 Rev 0 IP

Federal Specification (Fed Spec) HH-P-151, Mar 1991, Packing; Rubber-Sheet, Cloth-Insert

Federal Specification (Fed Spec) QQ-L-171, Mar 1988, Lead Pig

Federal Specification (Fed Spec) QQ-N-281, Oct 1985, Nickel-Copper Alloy Bar, Rod, Plate, Sheet, Strip, Wire, Forgings, and Structural and Special Shaped Sections

Federal Specification (Fed Spec) RR-C-271, Rev E, Dec 2010, Chain and Attachments, Welded and

Weldless

Harken Installation and Maintenance Manual for Radial Winch 50.2PTP, MRPW-01

International Standard For Organization (ISO) 484/2, 1981, Shipbuilding - Ship Screw Propeller -

Manufacturing Tolerances - Part 2: Propellers of Diameter Between 0.80 and 2.50 m, Inclusive

Manufacturers Standardization Society of the Valve and Fittings Industry (MSS) SP-61, 2013 Edition, Pressure Testing Of Valves

Manufacturers Standardization Society of the Valve and Fittings Industry (MSS) SP-67, 2017 Edition, Butterfly Valves

Manufacturers Standardization Society of the Valve and Fittings Industry (MSS) SP-72, 2018 Edition, Ball Valves with Flanged or Butt-Welding Ends for General Service

Manufacturers' Standardization Society of the Valve and Fittings Industry (MSS) SP-80, 2013 Edition, Bronze Gate, Globe, Angle and Check Valves

Manufacturers Standardization Society of the Valve and Fittings Industry (MSS), SP-58, Pipe Hangers and Supports – Materials, Design, Manufacture, Selection, Application and Installation xi (Rev-2)

MARKLOAD SYSTEM 40, Service and Installation manual

MIL PRF-16173, Sep 2006, Corrosion Preventive Compound, Solvent Cutback, Cold-Application

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

MIL-A-22262, Mar 1996; Abrasive Blasting Media Ship Hull Blast Cleaning

MIL-A-24456, Jun 1979, Adhesive for Plastic Vibration-Damping Tile

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

Reliability Is Required

MIL-G-24716, Apr 1993, Gaskets, Metallic-Flexible Graphite, Spiral Wound

Military Standard MIL-S-19622/17D, Dec 1992, Stuffing Tube, Nylon, and Packing Assemblies, General

Specification for

Military Standard MIL-STD-2003/3A (SH), Sep 2009, Electrical Plant Installation Standard Methods for

Surface Ships and Submarines

MIL-PRF-1149, Jun 1998, Gasket Materials, Synthetic Rubber, 50 and 65 Durometer Hardness.

MIL-PRF-16173, Sep 2006, Corrosion Preventive Compound, Solvent Cutback, Cold-Application

MIL-PRF-23236, Sep 2009, Coating Systems for Ship Structures

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

MIL-STD-2003-3, Sep 2009, Electric Plant Installation Standard Methods for Surface Ships &

Submarines (Penetrations)

National Electrical Manufacturers Association (NEMA) Stds, Pub. No. AB4, 2017, Guidelines for

Inspection and Preventive Maintenance of Molded Case Circuit Breakers Used in Commercial and

Industrial Applications

Naval Sea Systems Command (NAVSEA) Underwater Ship Husbandry Manuals (UWSH) S0600-AA-

PRO-160, Nov 2011, Chapter 16, Cofferdams

NAVSEA Technical Publication T9074-AD-GIB-010/1688, (TP 1688), July 2012, Requirements for

Fabrication, Welding, and Inspection of Submarine Structure

Society of Automotive Engineers (SAE) Aerospace Material Specification (AMS) C-6183B, 2019, Cork and Rubber Composition Sheet; for Aromatic Fuel and Oil Resistant Gaskets

Society of Automotive Engineers (SAE) Aerospace Material Specification (AMS) G-6032, 2020 Grease, Plug Valve, Gasoline and Oil Resistant, NATO Code Number G-363, Metric

The Society for Protective Coatings (SSPC) Surface Preparation Specification No. 1 (SSPC-SP 1), 2004, Solvent Cleaning

The Society for Protective Coatings (SSPC) Surface Preparation Specification No. 16 (SSPC-SP 16), 2010, Brush-Off Blast Cleaning of Coated and Uncoated Galvanized Steel, Stainless Steels, and

Non-Ferrous Metals

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.11 (SSPC-SP 11), 2012, Power Tool Cleaning

The Society for Protective Coatings (SSPC), January 2015, Paint Application Specification No. 2 (PA-2), Procedure for Determining Conformance to Dry Coating Thickness Requirements

The Society for Protective Coatings (SSPC)/NACE International (NACE) Joint Surface Preparation

Standard SSPC-SP 10/NACE No.2, 2007, Near-White Blast Cleaning

The Society for Protective Coatings (SSPC)/NACE International (NACE) Joint Surface Preparation

Standard SSPC-SP 12/NACE No.5, 2007, Surface Preparation and Cleaning of Steel & Other Hard

Materials by High and Ultrahigh Pressure Water Jetting xii (Rev-2)

U.S. Navy Resilient Mount Handbook – A User’s Guide of Installation and Inspection Information,”

NAVSEA S9073-A2-HBK-010 of 30 Aug 1988.

Ultrasonic Corrosion Inspection Report, USCG CGC MOBILE BAY Barge (CGB-12002) GLADD

Solutions, May 2019

Underwriters Laboratories Inc. (UL) 489, May 2002, Molded Case Circuit Breaker xiii (Rev-2)

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)

13 N 5B5000 resilient mount NSN: 5340-00-543-3867 24 ea. 800.00

13 N Conical Auxiliary

Snubber Element

NSN: 5340-00-653-3518 16 ea. 500.00

14 N Wartsila FSE H76463-

01 Major Overhaul Kit

PN: WLP001419-002

NSN: 2010-01-540-3303 1 ea. 22,217.10

15 Y **Propeller shaft NSN: 2010-01-089-8123 PN:

101 WYTM-243-001 PIECE 1

1 ea. 7,874.50

17 N **Stern Tube Bearing

Staves

NSN: 2010-01-102-3734 1 set 5,000.00

18 Y Propeller NSN: 2010-01-078-8216 1 ea. 42,842.00

20 N ***Fathometer

Transducer, Shallow

Water, 50-200 kHz

NSN: 5845-01-470-2500 PN:

SS505

1 ea. 343.63

24 Y **Rudder NSN: 2040-01-115-3498

PN: 101WYTM562-001

1 ea. 186,806.00

24 Y **Rudder Stock NSN: 2040-01-115-5203

PN: 10251-562-241-PIECE-1

1 ea. 56,742.00

26 N Rubber Stave Bearing NSN: 2010-01-118-1008

PN: L-1214-1512X10

(Johnson Rubber Co)

1 ea. 3,753.00

26 N Pintle Bearing NSN: 2010-01-F17-4974

PN: F113075055 (Thordon)

1 ea. 4,000.00

26 N Upper Roller Bearing NSN: 3110-01-165-1405

PN: JHM840449-JHM840410

(Timken)

2 ea. 494.63

41 Y *Transducer Cover

Plate

N/A 1 ea. 50.00

46 N ***Fathometer

Transducer, Shallow

Water, 50-200 kHz

(Airmar Technology

SS505)

NSN: 5845-01-470-2500 1 ea. 343.63

52 N Overhaul Kit, Bow

Thruster

NSN: 2010-01-659-2615

PN: SBJ-112

1 ea. 21,980.90

52 Y **Propeller Shaft NSN: 2010-01-659-2443

PN: 1013898

1 ea. 9,821.00

56 N FWTH; 84 IN x 84 IN

Flush Watertight Hatch, Steel

MARHILL

MANUFACTURING INC.

113 WEST SECOND

STREET SMITHVILLE TX

78957 512-237-3212 CAGE

2 ea. 60,000.00 xiv (Rev-2)

CODE 27164

60 N Duplex Basket Strainer

Model 53 BTX, 4” NPS, BF (5/32” pr. baskets included)

NSN: 4730-01-622-7167

Eaton P/N: ST053040BF11TS

1 ea. 14,924.43

72 N Water Filter Assembly PN: DWS160-L (3M)

NSN: 4330-01-F20-5959

1 ea. 157.00

72 N Water Filter Element NSN: 4330-01-F20-5960

PN: 56134-44 (3M)

1 ea. 164.57

75 Y *Transducer Cover

Plate

N/A 2 ea. 50.00

*Government-loaned property, which shall be returned to the vessel upon completion of the availability.

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

***Government-furnished property, which is to be supplied by either the vessel or the C4IT ServiceCenter xv (Rev-2)

CONSOLIDATED LIST OF CRITICAL INSPECTION ITEMS

The following is a list of work items, which contain Critical Inspection reports, which the Contractor must complete within the first 25% of the availability contract period (see SFLC Std Spec 0000, paragraph 3.2.6.5

(Inspection report particulars)):

Work

Item Title

4 Bubbler Channels, Inspect

14 Propulsion Shaft Seals, Mechanical Overhaul and Inflatable Renew

16 Propulsion Shaft Bearings, External, Check Clearances

24 Rudder Assembly, Remove, Inspect and Reinstall

68 Hull Plating, U/W Body, Ultrasonic Testing - Barge

82 Hull Plating, Side Scan, Ultrasonic Testing

89 Tank Level Indicators, Repair xvi (Rev-2)

PRINCIPAL CHARACTERISTICS - TUG, ICEBREAKING

140’ WTGB (TUG, ICEBREAKING)

PHYSICAL

Length overall 140' 0"

Length between perpendiculars 130' 0"

Breadth, extreme 37' 7-1/4"

Depth, molded 18' 2-3/8"

Frame spacing 1' 6"

Full load (Winter) draft (at ) 12' 1-1/2"

Full load (winter) displacement 687 Long tons (LT)

Full load (winter) center of gravity

Above base (kg) 13' 1"

Full load trimming moment (forward) 75.6 Ft-LT

Min. operating condition draft (at ) 11' 6-3/8"

Min. operating condition displacement 640 Long tons

Min. operating condition center of gravity

Above base (kg) 13' 4-1/4"

Min. operating condition trimming moment

Forward 76.8 Ft-LT

Height of vessel above DWL Approx. 62' 0"

MACHINERY

Main Propulsion

Engine Type Diesel-electric

Number of units: 2

Total shaft horsepower: 2500

Propeller

Number of propellers 1

Number of blades 4

Diameter of propeller 8' 6"

Pitch Fixed

NOTE

Stability values above are for representative tug. Draft and longitudinal lever values provided above are for tugs in fresh water. Longitudinal lever values are provided to adjust tug's design drag of 1.0 feet by the stern.

xvii (Rev-2)

PRINCIPAL CHARACTERISTICS - BARGE

120' CGB, BARGE

PHYSICAL

Length overall 125' 0"

Breadth, extreme 52' 0"

Frame spacing 1' 0"

Full load draft 5' 7"

Full load displacement 690 Long tons

DIESEL GENERATORS

Number of units 2

Rated power 75 kw, 450 V, 3 Ph

DIESEL HYDRAULIC POWER UNIT

Number of units 2

Rated power 75 kw, 450 V, 3 Ph

BOW THRUSTER

Number of units 1

PROPELLERS

Type Vertical Mount in Recessed Tunnel

Number 1

Number of blades 3

Diameter 12"

1 (Rev-2)

00000_0522_FLT

REC_00000_FLT_Commercial Project @ Contractor’ Facility (0121)

General Requirements

1. SCOPE

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

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), 2020, General

Requirements

Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2020, Welding and

Allied Processes

Surface Forces Logistics Center Standard Specification 5550 (SFLC Std Spec 5550), 2020, Fire Prevention and Response

Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2020, 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 of 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.

3.1.1 The Contractor must conform to all requirements specified in SFLC Std Spec 5550 and in the Fire

Protection and Response work item, as applicable, during the performance of this availability.

2 (Rev-2)

3.1.1.1 Fire Safety Plan submission. The Contractor must submit a copy of the CFR 1915, Subpart P, Fire Safety

Plan with the Contractor’s bid when work will be conducted in a Contractor–owned facility. Include any MOA(s) with local firefighting facilities.

3.1.1.2 Fire Plan submission. The Contractor must submit a copy of the developed availability specific fire plan as requested in the Fire Protection and Response work item, with the Contractor’s bid.

3.1.1.2 Fire Plan submission. The Contractor must submit a copy of the developed availability specific fire plan, as requested in the Fire Protection and Response work item, seven (7) days before the Arrival Conference.

NOTE

NAVSEA drawings listed will be available FOR INSPECTION ONLY from the Coast

Guard Port Engineer post-award. SFLC will not redistribute NAVSEA documents.

Contractors can apply to NAVSEA headquarters directly for copies.

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 (Rev-2)

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 “measurements” 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.

3.4.1 HY-130 material substitution. The Contractor must be aware that HY-130 steel plating is no longer commercially available. For the purpose of performing flight deck repairs on US Coast Guard WMEC-270 “B-

Class” cutters, Weldox 900 steel plating has been approved as a replacement for HY-130. Due to the similarity in material properties and weldability of HY-130 and Weldox 900, all welding procedures and welder qualifications for welding Weldox 900 must be the same as those outlined in NAVSEA TP 1688 as applicable for welding HY-

130.

3.4.2 Standard spec modification. For any welding involving HY-130 on the flight deck of WMEC-270 “B-Class” cutters, perform all welding and allied processes, and non-destructive evaluation (NDE) in accordance with

NAVSEA TP 1688. The Contractor must be aware that the welding requirements specified in this document take precedence over paragraph 3.3.6 of SFLC Standard Spec 0000 for the purpose of welding involving HY-130.

3.4.3 Approval to weld HY-130. To obtain Coast Guard approval to weld on HY-130 steel for WMEC-270 “B-

Class” cutters, the Contractor must provide written Performance Qualification Records (PQR’s) for each process to be used. The PQR’s must be approved by one of the regulatory agencies affirming that the WPS meets the welding requirements of NAVSEA TP 1688. In addition, the Contractor must ensure that all subcontractors, prior to performing welding operations, have qualified procedures by meeting all the requirements set forth in this document.

NOTE

NAVSEA approval is NOT required for welding procedures submitted but the procedures must be reviewed and shown to satisfy the requirements set forth in

NAVSEA TP 1688, by a welding regulatory agency. The requirements for welding

Weldox 900 are considered the same as those for welding HY-130.

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

4 (Rev-2) 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.

3.5.2 Test and procedures. The Contractor is required to promptly conduct tests and procedures for the purpose of assessing whether operations are following 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 A, Requirements For

Environmental Protection At Contractor Operated (Non USCG) Facilities for HW disposal.

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. The Contractor must be aware that the following are approved changes to published SFLC 2020 Edition Standard Specifications and supersede published content:

3.7.1 SFLC Standard Specification 8636. Add missing paragraphs between 3.2 and 3.5 of Std Spec 8636 as follows:

“3.3 Access cut boundaries. The Contractor shall ensure that access cuts comply with the requirements and restrictions detailed in the following and in SFLC Std Spec 0740, and referenced codes.

3.3.1 Location of boundaries. Boundaries of access cuts and closure plates shall, in general, be located between principal ship framing, bulkheads, and other structural

5 (Rev-2) members and shall be at least three inches from any of these members or from the toes of other welds. A reduction in this three inch minimum may be approved by the KO on a case by case basis provided sufficient clearance is maintained for welding and inspection requirements. The boundaries of access cuts and closure plates should land on existing butts or seams, wherever practicable. The boundaries of prior access cuts should be utilized wherever possible. Boundaries may extend across one or more frames as required for the size of the opening.

3.3.2 Access hole dimensions and arrangements. Holes or access cuts shall be the minimum size necessary and shall be in accordance with the following:

• Rectangular access cuts and closure plates welded into primary hull structure shall be at least 12 inches wide in the lesser dimension.

• For circular access cuts, the minimum diameter shall be 4T, where T = thickness of the involved structural member, but not less than three inches.

• Circular closure plates for access cuts less than two feet in diameter shall be dished 1/16 to 1/8 inch to allow for shrinkage when welded.

• Corners of rectangular access cuts and closure plates shall have a minimum radius of 6 inches except when a boundary lands on an existing hull longitudinal seam or transverse butt weld.

• Corners at an existing seam or butt shall intersect at a 90 degree angle.

• Cuts that are to cross existing butts or seams shall do so at an angle of 90 degrees plus or minus 15 degrees.

• In primary hull structure, existing welds forming the boundary of a cut shall be cut back 3 inches beyond the toe of the access cut, except that the cut back shall not intersect or cross an existing weld, frame, or structural member. In which case, the cut back may be reduced to a minimum of two inches in length.

• Existing welds crossed by the cut shall not be cut back.

3.3.3 Primary hull structure. Primary Hull Structure includes the shell, main strength decks, principal longitudinal bulkheads, vertical keel, deep web girders and stiffeners designed to withstand the ship bending stress.

3.3.4 Mechanically fastened joints. Welding closer than six inches to a mechanically fastened joint should be avoided. When access cuts cross or come within six inches of a mechanically fastened joint, the fasteners shall be checked for tightness and if necessary, loose fasteners shall be seal welded or removed, and replaced for a distance of 6 inches beyond the edge of the cut. When a cut crosses a mechanically fastened seam the cut plates shall be repaired using single V welds backed with glass tape (MIL-C-20079) to prevent fusion between the mechanically fastened plates.

3.4 Ship integrity maintenance. The Contractor shall maintain safety and ship integrity by installing temporary guarding and coaming, in addition to weathertight and watertight closures. Remove these temporary fabrications after closing the hull access, and grind surfaces flush in way of removals. For shell plating cuts made at or below the waterline where temporary closures are impractical, the Contractor shall secure each vulnerable compartment and subdivision to minimize potential damage to the extent permitted by the scope and urgency of the work.

6 (Rev-2)

3.4.1 Guarding. Install temporary guards in accordance with 29 CFR 1915.73.

3.4.2 Coaming. Ensure that in areas where flammable liquids may be stored, a 4 inch high metal coaming shall be installed on the surface of the deck with tack welds and fully sealed with caulking compound. The coaming shall encircle the access cut in the deck.

3.4.3 Weathertight and contamination closures. Fabricate temporary closures, using fire retardant material, before cutting access openings and install closures whenever access is not in use. Closures shall be:

• Constructed to protect the access from inclement weather and entry of contaminants (shall include a coaming or dam on the deck to redirect rain runoff away from the opening).

• Fitted with fasteners that permit rapid installation and removal.

• Able to support a minimum of 150 pounds per square foot for horizontal deck closures.

• Where the access opening is in way of a removed hatch, scuttle or door, the closure shall be configured to allow normal passage of ship’s personnel and equipment.

3.4.4 Watertight closures. Ensure that access openings created four feet or less above the maximum anticipated waterline shall include temporary watertight closures when the vessel is waterborne.

NOTE

NAVSEA S0600-AA-PRO-160/CH16 provides requirements for design, fabrication, and installation of temporary watertight closures.”

3.7.2 SFLC Standard Specification 0000. Replace paragraph 3.3.4 Vessel access, as follows:

"3.3.4 Vessel access. During work at the Contractor’s facility, provide access and/or egress to and from the vessel in accordance with 29 CFR 1915.74, Subpart E. Provide a minimum of two gangways that have the following:

• Adequate walking surface width and strength and be safely secured.

• A railing, with a mid-rail, on each side of the gangway, and a turn table if necessary.

• Substantial steps properly secured and equipped with at least one handrail, when the upper end of the gangway rests on or is flush with the top of the bulwark of the dock.

• Nets or other suitable protection on both sides, when there is a danger of personnel falling between the ship and the dock. Nets and other suitable protection must extend beyond the projected area of the access and egress points so as to catch a personnel that may be falling outward: i.e., the nets must be wider than the gangway.

• Proper trimming at all times.

• Adequate illumination for their full length.

• Separated by one-fourth the length of the vessel, at a minimum, as to mitigate the possibility that an incident could block both means of escape."

7 (Rev-2)

3.7.3 SFLC Standard Specification 8635. Replace and add paragraphs as follows, "3.3.10.4.1 Contractor-furnished supporting equipment. Provide all hoses and fittings needed to supply water to the system. Provide pressure gauges at the connection(s) to the ship and the furthest firehose station to allow personnel to clearly read the gage-face to demonstrate or record the required water pressure is available at all energized portions of the system."

"3.2.3 Shipboard access/egress and routing of temporary services. Maintain a primary and secondary means of access/egress for each vessel, where practicable.

Pre-plan for the installation of temporary services to minimize the total number of service leads penetrating the hull by maximizing the use of backbones and/or manifolds for industrial services. Pre-planning for the installation of temporary services shall include removal (first in, last out, when no longer required). Pay special attention to transitional spaces (cross passages, top and bottom of stairwells) where services could potentially fall and restrict emergency personnel egress and/or casualty responder access."

"3.2.3.2 Materials used for suspending temporary services. Temporary services shall be suspended at regular intervals, to prevent impeding personnel access/egress and emergency response, using a high temperature line that meets the noncombustibility test requirements contained in reference (e). When using steel wire rope, or other potentially abrasive material, an anti-chafing material shall be used to prevent damage of the temporary service line.