Spec - WEDGE (WLR 75D) DD FQ4 AMH 22R0.pdf

USCGC WEDGE (WLR 75307)

USCG 90B BARGE (90012)

SPECIFICATION FOR DRYDOCK REPAIRS

FY2022

Developed By: Robert E Ozment

(Rev-0, 20 January 2022)

USCGC WEDGE (WLR-75D) DRYDOCK AVAILABILITY FY2022

ii (Rev-0)

TABLE OF CONTENTS

Revisions Record .......................................................................................................................................... iv Consolidated List of References .................................................................................................................... v Consolidated List of Government-furnished Property .................................................................................. x Consolidated List of Critical Inspection Items ............................................................................................. xi Principal Characteristics - Tender .............................................................................................................. xii Principal Characteristics - Barge ............................................................................................................... xiii General Requirements WORK ITEM 1: Hull Plating, U/W Body, Inspect - Tender WORK ITEM 2: Hull Plating, U/W Body, Ultrasonic Testing - Tender WORK ITEM 3: U/W Body, Preserve, 100 percent - Tender WORK ITEM 4: Hull Plating Freeboard, Preserve, 100 Percent - Tender WORK ITEM 5: Propulsion Shaft Rope Guards, Inspect WORK ITEM 6: Voids, Non-Accessible, Leak Test - Tender WORK ITEM 7: Voids, Non-Accessible, Internal Surfaces, Preserve WORK ITEM 8: Tanks, MP Fuel Service, Clean and Inspect - Tender WORK ITEM 9: Propulsion Shafting; Remove, Inspect, and Reinstall WORK ITEM 10: Propulsion Shaft Seals, Mechanical Overhaul and Inflatable Renew WORK ITEM 11: Propulsion Shafting, Straighten WORK ITEM 12: Propulsion Shafting, Optical or Laser Alignment Check WORK ITEM 13: Propulsion Shaft Bearings, External, Renew WORK ITEM 14: Propulsion Shaft Bearings, External, Check Clearances WORK ITEM 15: Stern Tube Interior Surfaces, Preserve, 100 Percent WORK ITEM 16: Propeller, Perform Minor Repairs and Reconditioning WORK ITEM 17: Propellers, Remove, Inspect, and Reinstall WORK ITEM 18: Keel Coolers, Clean, Inspect and Hydro WORK ITEM 19: Fathometer Transducer, General Maintenance WORK ITEM 20: Sea Strainers, All Sizes, Renew WORK ITEM 21: Rudder Assembly, Remove, Inspect And Reinstall WORK ITEM 22: Rudders, Preserve, 100 Percent WORK ITEM 23: Hull Fittings (Mooring and Towing), Inspect and Test - Tender WORK ITEM 24: Spuds, Overhaul - Tender WORK ITEM 25: Spud Wells, Preserve - Tender WORK ITEM 26: Cathodic Protection, Zinc Anodes, Renew, - Tender WORK ITEM 27: Drydock - Tender WORK ITEM 28: Temporary Services, Provide - Tender WORK ITEM 29: Sea Trial Performance, Support, Provide WORK ITEM 30: Hull Plating, U/W Body, Inspect - Barge WORK ITEM 31: Hull Plating, U/W Body, Ultrasonic Testing - Barge WORK ITEM 32: Tanks, MP Fuel Stowage and Overflow, Clean and Inspect - Barge WORK ITEM 33: Voids, Non-Accessible, Leak Test - Barge WORK ITEM 34: Voids, Non-Accessible, Internal Surfaces, Preserve - Barge WORK ITEM 35: Keel Coolers, Clean, Inspect and Hydro - Barge WORK ITEM 36: Fathometer Transducer, General Maintenance - Barge WORK ITEM 37: U/W Body, Preserve, 100 percent - Barge WORK ITEM 38: Hull Plating Freeboard, Preserve, 100 Percent - Barge WORK ITEM 39: Cathodic Protection, Zinc Anodes, Renew - Barge WORK ITEM 40: Drydock - Barge WORK ITEM 41: Temporary Services, Provide - Barge iii (Rev-0)

WORK ITEM 42: Hull Fittings, Weight Handling Rigging Hardware, Inspect and Test - Barge WORK ITEM 43: Hull Fittings (Mooring and Towing), Inspect and Test - Barge WORK ITEM 44: Spuds, Overhaul - Barge WORK ITEM 45: Spud Wells, Preserve - Barge WORK ITEM 46: Decks – Exterior (Buoy or Construction Deck), Preserve 100% WORK ITEM 47: Boat Davit Winch, Shrink Wrap WORK ITEM 48: Buoy and Cargo Handling Crane, Shrink Wrap WORK ITEM 49: Anti-Ventilation Underwater Hull Strakes, Installation WORK ITEM 50: Joiner Door, Renew WORK ITEM 51: Navigation Lighting Panel, Renew WORK ITEM 52: Aton Hold Repair WORK ITEM 53: Engine Room Bulkhead Repair WORK ITEM 54: Lead-Based Paint, Perform Spot Abatement WORK ITEM 55: Gunwale Bulwark Repair WORK ITEM 56: Lead-Based Paint, 100% Abatement, Perform - Tender WORK ITEM 57: Aft Deck Plating (Barge), Repair WORK ITEM 58: Barge Air Compressor Water Cooled Heat Exchanger, Install WORK ITEM 59: Compartment Insulation (General), Renew iv (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 incorporated.

v (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 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

75 WAGL 2200-010, -Rev D, Main Rudder Stock And Fittings For Jastram S2-16-2-35 Steering System

75 WAGL 2200-011, Rev D, Flanking Rudder Stock And Fittings For Jastram S2-16-2-35 Steering

System

Coast Guard Drawing 75 WAGL 0700-004, Rev A, Docking Plan

Coast Guard Drawing 75 WAGL 2901-004, Rev -, Curves of Form

Coast Guard Drawing 75 WAGL 633-001, Rev A, Cathodic Protection

Coast Guard Drawing 75 WLR 114-001, Rev -, Anti-Ventilation Strake Installation and Details

Coast Guard Drawing 75C WAGL 1101-1, Rev C, Shell Expansion (75306-75307)

Coast Guard Drawing 75D 2200-016, Rev D, Rudder Post Installation For Jastrum S2-16-2-35 Steering

System

Coast Guard Drawing 75D WAGL 0103-3, Rev -, Booklet Of Gen Plans (75307)

Coast Guard Drawing 75D WAGL 0103-7, Rev D, Outboard Profile and Inboard Profile (75306-75307)

Coast Guard Drawing 75D WAGL 0500-001, Rev -, Lines and Offsets

Coast Guard Drawing 75D WAGL 0700-004, Rev -, 75FT “D” Class Towboat Docking Block

Arrangement

Coast Guard Drawing 75D WAGL 103-7, Rev D, Outboard Profile and Inboard Profile (75306-75307)

Coast Guard Drawing 75D WAGL 1101-006, Rev B, New Grid Cooler Pocket P/S to Suit 80MDDCD

SSDG

Coast Guard Drawing 75D WAGL 1103-003, Rev A, Frames 4, 12, 16, 21, 31, & 36

Coast Guard Drawing 75D WAGL 1105-007, Rev -, Miscellaneous Bulkheads and Frames

Coast Guard Drawing 75D WAGL 2602-1, Rev-, Spud Housing Assembly And Details

Coast Guard Drawing 75D WAGL 4103-027, Rev B, Jacket Water Piping Mods to Suit IRESS

(WEDGE)

Coast Guard Drawing 75D WAGL 4301-001, Rev 2, Shafting and Bearings

Coast Guard Drawing 75D WAGL 700-004, Rev-, 75FT “D” Class Towboat Docking Block

Arrangement

Coast Guard Drawing 75D-WAGL 4301-3, Rev E, Shafting Installation to Suit If 1312 MDE

Coast Guard Drawing 75D-WAGL-2200-014, Rev B, Steering System Arrangement For Jastram S2-16-

2-35 vi (Rev-0)

Coast Guard Drawing 75D-WAGL-2200-015, Rev C, Flanking Steering System Arrangement For

Jastrum S2-16-2-35

Coast Guard Drawing 75D-WLR 4301-3, Rev E, Shafting Installation to Suit If 1312 MDE

Coast Guard Drawing 75-WAGL 4301-5, Rev N, Shafting Machining Details to Suit If 1312 MDE

Coast Guard Drawing 75-WAGL 4400-3, Rev L, Propeller to Suit IF1312 MDE

Coast Guard Drawing 75-WLIC-602-001 General Arrangement

Coast Guard Drawing 75D-WAGL-1602-6, Rev A, Interior Door Details

Coast Guard Drawing 75-WLIC-167-002 Rev-B Door Schedule

Coast Guard Drawing 75D-WAGL_6201_005, Rev C, Electrical One Line Block Wiring Diagram.

Coast Guard Drawing 75D-WAGL 103-004, Rev D, Gen Arrg Mn Dk & Hold (75306-75307)

Coast Guard Drawing 75D-WAGL 1103-02, Rev -, Hull Framing Plan (75306-75307)

Coast Guard Drawing 75D-WAGL 1105-01, Rev C, Transv Bhds & Transom (75306-75307)

Coast Guard Drawing 75D WAGL 0103-4, Rev 1, General Arrangement – Main Deck & Hold

Coast Guard Drawing 75D-WAGL 1604-02, Rev A, Bulwark Ext Handrail & Grabrail Layout (75306-

75307)

Coast Guard Drawing 75D-WAGL 1604-03, Rev A, Bulwark Ext Handrail & Grabrail Dets (75306-

75307)

Coast Guard Drawing 75D WAGL 0103-4, Rev 1, General Arrangement – Main Deck & Hold

Coast Guard Drawing 75D WAGL 1103-2, Rev -, Hull Framing Plan (75306-75307)

Coast Guard Drawing 75D-WAGL 3901-1, Rev. A, Insulation and Sheathing Schedule

Coast Guard Drawing 75-WAGL 103-8, Rev A, Booklet of General Plans

Coast Guard Drawing 75D-WAGL-4803-2, Fire Main – Plan

Coast Guard Drawing 75D-WAGL-4803-3, Fire Main – Sections

Coast Guard Drawing 90B CGB 103-008, Rev -, CGB 90012 Booklet of General Plans

Coast Guard Drawing 90B CGB 1101-01, Rev 5, Fwd Rake Deck, Bottom, & Side Pl

Coast Guard Drawing 90B CGB 0103-1, Rev C, Outboard Profile and Arrangement for 90’x 24’x 6’-6”

Barge

Coast Guard Drawing 90B CGB 0700-001, Rev -, Docking Plan for 90’ x 24’ x 6’-6” Spec Barge

Coast Guard Drawing 90B CGB 1103-002, Rev 1, Transverse Frames and Sections

Coast Guard Drawing 90B CGB 2602-3, Rev 2, Barge 90'-0" X 24'-0" X 6'-6" Spud & Spud Well Details

Coast Guard Drawing 90B CGB 2602-4, Rev A, USCG Barge 90012 Spud Extension And Strengthening

Details

Coast Guard Drawing 90B CGB 2901-002, Rev -, Tank CAPACITY - 95% Tables

Coast Guard Drawing 90B CGB 5501-001, Rev -, Fuel Oil Piping System

Coast Guard Drawing 90B CGB-0700-001, Rev -, Docking Plan for 90’ x 24’ x 6’-6” Spec Barge

Coast Guard Drawing 90-CGB 6713-3, Rev -, Transducer Location

Coast Guard Drawing 90B-CGB 1101-02, Rev -, Midship Deck, Bottom & Side Pltg Spec Barge

Coast Guard Drawing 90B-CGB 103-008, Rev -, CGB 90012 Booklet of General Plans

Coast Guard Drawing 90B-CGB 1101-03, Rev 1, After Rake Details for 90x24x6½ Special Barge

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

Coast Guard Drawing 90C-CGB 4103-001, Rev 2, Skin Cooling & Raw Water Piping for 90'-0" X 30'-0"

X 6'-6" Special Barge vii (Rev-0)

Coast Guard Drawing 90B-CGB 4803-001, Rev -, Jetting, Fire, & Diversion Piping Systems for 90'-0" X

24'-0" X 6'-6" Special Barge

Coast Guard Fleet Drawing FL 2602-10, Rev R, Spud Arrangements and Details

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

Drawing 75D-WAGL-2200-014, Rev B, Steering System Arrangement For Jastram S2-16-2-35

NAVSEA Drawing 803-921865, Rev R, Cathodic Protection Hull Zinc Anodes

Naval Sea Systems Command (NAVSEA) 0900-LP-060-4010, 1981, Fabrication, Welding & Inspection of Metal Boat & Craft Hulls

NAVSEA Drawing 804-5773931, Rev A, Acoustic & Thermal Insulation For Compartments Installation

Details

NAVSEA Drawing 804-5959214, Rev-, Piping Insulation - Installation Details

COAST GUARD PUBLICATIONS

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

Manual

Coast Guard Technical Publication (TP) 4506, Wartsila TM-EL-68839, Issue A, Mar 2005, Rudderstock

Seal Type EL

Coast Guard Technical Publication (TP) 5491, SWBS 256, Apr 2013, Keel Grid Cooler (Duramax)

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 5000 (SFLC Std Spec 5000), 2020, Auxiliary

Machine Systems

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

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

Electrical Cable Test

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

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

OTHER REFERENCES

American Bureau of Shipping (ABS) 2, Rule Requirements for Survey After Construction, 2007, Part 7, Appendix Section 10, Guide for Bronze and Stainless Steel Propeller Castings

ASTM International (ASTM) D1330, 2010, Standard Specification for Rubber Sheet Gaskets

ASTM International (ASTM) D1709, 2008, Standard Test Methods for Impact Resistance of Plastic Film by the Free-Falling Dart Method

ASTM International (ASTM) D1922, 2008, Standard Test Method for Propagation Tear Resistance of

Plastic Film and Thin Sheeting by the Pendulum Method

ASTM International (ASTM) D3951, Reapproved 2004, Standard Practice for Commercial Packaging

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

Adhesives (AN) viii (Rev-0)

ASTM International (ASTM) D882, 2009, Standard Test Method for Tensile Properties of Thin Plastic

Sheeting

Commercial Item Description (CID) A-A-52624, Nov 2008, Antifreeze, Multi Engine Type, Ethylene

Glycol (For Caterpillar equipment applications, use CAT Extended Life Pre-Mix coolant.)

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

Petrolatum

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

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

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

Reliability Is Required

MIL-PRF-24647, Jan 2018, Paint System, Anticorrosive and Antifouling, Ship Hull

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

MIL-S-45180D, 1984; Sealing Compound, Gasket, Hydrocarbon Fluid and Water Resistant

MIL-STD-167-1, Nov 2005, Mechanical Vibrations of Shipboard Equipment (Type I - Environmental and Type II - Internally Excited)

MIL-STD-2191, Nov 1992, Repair Welding, Weld Cladding, Straightening, and Cold Rolling of Main

Propulsion Shafting

MIL-PRF-24176C, Oct 2004, Cement, Epoxy, Metal Repair and Hull Smoothing

Society of Automotive Engineers (SAE) Aerospace Material Specification (AMS) C6183, 2019, Cork and

Rubber Composition Sheet; for Aromatic Fuel and Oil Resistant Gaskets

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, 2014, Grease, Plug Valve, Gasoline and Oil Resistant, NATO Code Number G-363, Metric

SPIWG: Recommend MIL Pref be replaced with 6310 reference.

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 to Bare Metal

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

The Society for Protective Coatings (SSPC)/NACE International (NACE) 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 ix (Rev-0)

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

Standard SSPC-SP WJ-2/NACE WJ-2, 2012, Waterjet Cleaning of Metals – Very Thorough

Cleaning

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

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

The Society for Protective Coatings SSPC-SP 11, Jul 2012, Power Tool Cleaning to Bare Metal

The Society for Protective Coatings (SSPC) Surface Preparation Specification No.11 (SSPC-SP 11), 2012, Power Tool Cleaning to Bare Metal

The Society for Protective Coatings (SSPC) Surface Preparation Specification No.3 (SSPC-SP 3), Power

Tool Cleaning

Military Standard 777 (MIL STD 777) Schedule of Piping, Valves, Fittings, and Associated Piping

Components.

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

ASTM International (ASTM) F683, 2003, Standard Practice for Selection and Application of Thermal

Insulation for Piping and Machinery x (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)

9 Y **Propulsion Tail

Shaft

NSN: 2010-01-557-1512 2 ea. 31,000.00

9 N ** Bulkhead Seal NSN: 5330-01-F13-3234 2 ea. 5,400.00

9 N **Pedestal Line Shaft

Bearing

NSN: 3130-01-F11-2242 2 ea. 2,700.00

10 N Wartsila FSE H74537-

02 Major Overhaul Kit

(WLP001365-001)

NSN: 2010-01-560-3274 2 ea. 7,680.00

17 Y **Propeller, RH NSN: 2010-01-534-9089 1 ea. 13,000.00

17 Y **Propeller, LH NSN: 2010-01-534-9095 1 ea. 13,000.00

17 N **Nut, Propeller-

Heavy

NSN: 2010-01-F18-5562 2 ea. 698.00

18 N **MDE Grid Cooler

(SC-418DP-114)

NSN: 2040-01-F11-2291 2 ea. 10,800.00

18 N **SSDG Grid Cooler

(SC-216DP-63)

NSN: 2040-01-F11-2290 2 ea. 4,500.00

19 N ***Fathometer

Transducer, Shallow

Water, 50-200 kHz

((Furuno 520-BLD)

NSN: 5845-01-521-8278 1 ea. 343.63

20 N Strainer, Duplex NSN: 4730-01-394-9731 1 ea. 6,850.00

21 Y **Rudder - Steering NSN: 2040-01-530-9095 2 ea. 28,675.25

21 Y **Rudder - Flanking NSN: 2040-01-531-4393 2 ea. 37,850.50

21 N **Upper Rudder bearing (SKF PN

23222CC/W33)

NSN: 3110-01-F11-2241 4 ea. 547.88

21 N Rudder EL Seal, Major

Overhaul Kit (WLP-

001427001)

NSN: 5330-01-646-5935 4 ea. 4,000.00

36 N ***Fathometer

Transducer, Shallow

Water, 50-200 kHz

(Furuno 520-BLD)

NSN: 5845-01-521-8278 2 ea. 343.63

50 N Metal Joiner Door N/A 1 ea. 9,500.00

51 N Navigation Lighting

Control Panel

PN: CAT #31 Series 1 ea. 18,500.00

*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 xi (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, paragraph 3.2.6.5

(Inspection report particulars)):

Work

Item Title

2 Hull Plating, U/W Body, Ultrasonic Testing - Tender

3 U/W Body, Preserve, 100 percent - Tender

6 Voids, Non-Accessible, Leak Test - Tender

8 Tanks, MP Fuel Service, Clean and Inspect - Tender

9 Propulsion Shafting; Remove, Inspect, and Reinstall

12 Propulsion Shafting, Optical or Laser Alignment Check

13 Propulsion Shaft Bearings, External, Renew

14 Propulsion Shaft Bearings, External, Check Clearances

21 Rudder Assembly, Remove, Inspect And Reinstall

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

32 Tanks, MP Fuel Stowage and Overflow, Clean and Inspect - Barge

33 Voids, Non-Accessible, Leak Test - Barge

37 U/W Body, Preserve, 100 percent - Barge xii (Rev-0)

PRINCIPAL CHARACTERISTICS - TENDER

75’ WLR (D-CLASS: CGC WEDGE), INLAND BUOY TENDER

PHYSICAL

Length overall 75' 0"

Depth 7' 7-3/4"

Maximum beam 22' 0"

Height of highest projection 32' 0"

Full load draft 4' 4” LCF Draft

Full load displacement 141.31 Long Tons SW

Shore tie voltage requirements 440 V / 100 A

Frame spacing 1' 0"

MACHINERY

Number of propellers 2

Number of blades 5

Diameter of propeller 44"

Pitch 50" fixed

RPM 480

xiii (Rev-0)

PRINCIPAL CHARACTERISTICS - BARGE

90' CGB (B-CLASS: 90012, 90013), BARGE

PHYSICAL

Length overall 90' 0"

Depth 6' 6"

Maximum beam 24' 7"

Full load draft 4’6”

Full load displacement 181 Long Tons

Shore tie voltage requirements 440 V / 100 A

1 (Rev-0)

00000_0821_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.

1.2 Term interchangeability. The terms 'Contractor', 'CG Yard', 'NAVSTA EVERETT', 'shipyard', 'Base', and

'Coast Guard Industrial' are used interchangeably in this specification. Where the primary service provider is

Coast Guard personnel, references to contractor and other noted descriptors within this specification or within drawings, publications, SFLC Standard Specifications or other commercial and military references are deemed the same as prime service provider.

2. REFERENCES

COAST GUARD DRAWINGS

None

COAST GUARD PUBLICATIONS

Coast Guard Commandant Instruction (COMDTINST) M10360.3 (series), Coatings and Color Manual

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

Requirements

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

Allied Processes

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

OTHER REFERENCES

None

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.

2 (Rev-0)

3.1.1 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 Contractor-provided fire watch personnel. The Contractor must provide fire watch personnel and equipment.

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.

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

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

3.5.1 Contractor operated (non USCG) facilities. The Contractor must provide and maintain environmental protection as defined in SFLC Std Spec 0000 Appendix A, Requirements for Environmental Protection at

Contractor Operated (Non USCG) Facilities, as applicable, during the performance of this availability. Contractor must plan for and provide environmental protective measures to control pollution that develops during normal practice, as well as plan for and provide environmental protective measures required to correct conditions that develop during the project. Contractor must comply with applicable Federal, state, and local laws, codes, ordinances, and regulations in their entirety. Any reference to a specific portion of a Federal, state, or local law, code, ordinance, or regulation in this or any other item must not be construed to mean that relief is provided from any other sections of the law, code, ordinance, or regulation.

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

3.5.3 Regulatory notifications. The Contractor must be responsible for all regulatory notification requirements in accordance with Federal, State and local regulations. In cases where the Coast Guard must also provide public notification, such as storm water permitting, the Contractor must coordinate with the Contracting Officer or COR, and if work is being performed at a USCG Facility, the local Facility Engineer or Engineering Officer. The

Contractor 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, and must be 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

3 (Rev-0) 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 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.

4 (Rev-0)

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.

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.”

4. NOTES

4.1 QA inspection forms. QA inspection forms (QA-1 thru QA-5), required in SFLC Std Spec 6310 to be completed and submitted during preservation of “critical-coated surfaces”, are provided at the end of this document.

5 (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 mfg.

CHECKPOINT 3 - AMBIENT CONDITIONS

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

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

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

CHECKPOINT 4 - PRE-SURFACE PREPARATION

Remove surface contaminants (soluble salts, loose rust, mud, and marine growth) with low pressure fresh water wash down (maximum 5,000 psi). If oil and grease are present, perform solvent cleaning, as per SSPC SP-1.

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

CHECKPOINT 5 - SURFACE PREPARATION

Verify environmental conditions (see CHECKPOINT 3).

Ensure cleanliness of prepared surface is as per specification (i.e.: SSPC SP-11, SP-10, SP WJ-2…).

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

Measure soluble salt conductivity in accordance with SSPC-Guide 15. Conduct 5 measurements per each 1000-sqft area (max. threshold: 70 microsiemens/cm for non-submerged surfaces, 30 microsiemens/cm for submerged surfaces).

CHECKPOINT 6 - PRIMER COAT APPLICATION

Verify environmental conditions (see CHECKPOINT 3).

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

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

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

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

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

Perform visual inspection for holidays and other defects.

CHECKPOINT 7 – STRIPE COAT APPLICATION

Verify environmental conditions (see CHECKPOINT 3).

Ensure overcoating window is as per manufacturer’s instructions.

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

CHECKPOINT 8 – TOP COAT APPLICATION

Verify environmental conditions (see CHECKPOINT 3).

Ensure overcoating window is as per manufacturer’s instructions.

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

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

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

CHECKPOINT 9 – FINAL INSPECTION

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

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

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

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

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

CHECKPOINT 10 – RECORD KEEPING

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

NAME OF QP-1/NACE INSPECTOR SIGNATURE CERT. # DATE / TIME

NAME OF CG REPRESENTATIVE SIGNATURE UNIT DATE/TIME

6 (Rev-0)

QA-2 - QUALITY ASSURANCE INSPECTION FORM

(ENVIRONMENTAL READINGS)

VESSEL NAME HULL #

WORK ITEM

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 |

7 (Rev-0)

QA-3a - QUALITY ASSURANCE INSPECTION FORM

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

VESSEL NAME HULL # WORK ITEM

LOCATION OF WORK (FRAME REFERENCES) AREA (SQFT)

SURFACE PREPARATION METHOD PROFILE ACHIEVED (MILS)

MIN MAX MEAN

SSPC-SP-10/NACE No. 2

SSPC-SP WJ-2/NACE WJ-2

SSPC-SP-3

SSPC-SP-11

SSPC-SP-11 (inaccessible area)

Brush-blasting (non-metallic substrate)

ABRASIVE MANUFACTURER: ABRASIVE SIEVE SIZE:

PLACE SURFACE PROFILE REPLICA TAPES IN THE SPACES PROVIDED BELOW, TO SERVE AS

PERMANENT QA RECORD. MAINTAIN A SEPARATE LOG FOR EACH LOCATION. WHEN AN AREA IS

DIVIDED INTO SEPARATE SECTIONS, MAINTAIN A SEPARATE LOG FOR EACH SECTION.

Place Surface Profile

Replica Tape Here

Place Surface Profile

Replica Tape Here

Place Surface Profile

Replica Tape Here

Reading (mils): Reading (mils): Reading (mils):

Place Surface Profile Replica Tape Here

Place Surface Profile Replica Tape Here

Place Surface Profile Replica Tape Here

Reading (mils): Reading (mils): Reading (mils):

Place Surface Profile Replica Tape Here

Place Surface Profile Replica Tape Here

Place Surface Profile Replica Tape Here

Reading (mils): Reading (mils): Reading (mils):

Place Surface Profile

Replica Tape Here

Place Surface Profile

Replica Tape Here

Place Surface Profile

Replica Tape Here

Reading (mils): Reading (mils): Reading (mils):

Place Surface Profile

Replica Tape Here

Place Surface Profile

Replica Tape Here

Place Surface Profile

Replica Tape Here

Reading (mils): Reading (mils): Reading (mils):

MEAN MIL READING (IAW ASTM D4417-METHOD C) FOR ABOVE 15 READINGS:

8 (Rev-0)

QA-3b - QUALITY ASSURANCE INSPECTION FORM

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

VESSEL NAME HULL # WORK ITEM

SURFACE PREPARATION METHOD PROFILE ACHIEVED (MILS)

MIN MAX MEAN

SSPC-SP-10/NACE No. 2

SSPC-SP WJ-2/NACE WJ-2

SSPC-SP-3

SSPC-SP-11

SSPC-SP-11 (inaccessible area)

Brush-blasting (non-metallic substrate)

ABRASIVE MANUFACTURER: ABRASIVE SIEVE SIZE:

RECORD MEASUREMENTS TAKEN IN THE SPACES PROVIDED BELOW, TO SERVE AS PERMANENT

QA RECORD. MAINTAIN SEPARATE LOG FOR EACH LOCATION. WHEN AN AREA IS DIVIDED INTO

SEPARATE SECTIONS, MAINTAIN A SEPARATE LOG FOR EACH SECTION.

Reading (mils):

Reading (mils):

Reading (mils):

Reading (mils):

Reading (mils):

Reading (mils):

Reading (mils):

Reading (mils):

Reading (mils):

Reading (mils):

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

Mean Reading

(mils)

9 (Rev-0)

QA-4 - QUALITY ASSURANCE INSPECTION FORM

(SURFACE SOLUBLE SALT CONDUCTIVITY LOG)

VESSEL NAME HULL # WORK ITEM

SOLUBLE SALT CONDUCTIVITY MEASUREMENTS IAW SSPC-GUIDE 15.

DATE TEST LOCATIONS CONDUCTIVITY (MICROSIEMENS/CM)

10 (Rev-0)

QA-5 - QUALITY ASSURANCE DATA FORM

(COATING THICKNESS)

(Use one sheet for each sequence)

VESSEL NAME HULL #

WORK ITEM

COATING MFG PRODUCT NAME

BATC

H #

INDUCTI

ON 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

11 (Rev-0)

11000_ESD_1021_FLT

REC_11000_UWHIB_FLT_75 WLR (‘D’ Class : CGC WEDGE 75307) (0121)

WORK ITEM 1: Hull Plating, U/W Body, Inspect - Tender

1. SCOPE

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.

1.2 Government-furnished property.

None.

2. REFERENCES

COAST GUARD DRAWINGS

Coast Guard Drawing 75D WAGL 0700-004, Rev -, 75FT “D” Class Towboat Docking Block

Arrangement

Coast Guard Drawing 75D WAGL 1101-001, Rev C, Shell Expansion (75306-75307)

COAST GUARD PUBLICATIONS

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

OTHER REFERENCES

ASTM International (ASTM) D4138, 2013, Standard Practices for Measurement of Dry Film

Thickness of Protective Coating Systems by Destructive, Cross-Sectioning Means

The Society for Protective Coatings (SSPC), January 2015, Paint Application Specification No. 2

(PA-2), Procedure for Determining Conformance to Dry Coating Thickness Requirements

3. REQUIREMENTS

3.1 General.

3.1.1 CIR.

None.

3.1.2 Tech Rep.

12 (Rev-0)

Not applicable.

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

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

3.2 Inspection. The Contractor must 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 must 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 must 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 must 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 must inspect all sea chests, sea beam arrays, 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.

3.2.3 Rudders. The Contractor must check general condition, condition around the drain plugs, and check for pitting, if any, on the leading and trailing edges.

3.2.4 Propeller and shaft associated components. The Contractor must inspect the condition of propellers for signs of corrosion, pitting, erosion, fouling, cracks, dings, and nicks by side and blade; inspect fairwaters, rope guards, shafts, and mechanical seals - look for missing screws, physical damage to the blades, pitting, condition of dunce caps, and condition of securing devices.

3.2.5 Transducers. The Contractor must check general condition for cuts, cracks, corrosion, and surface defects around the openings. Check transducer securing nuts for tightness, and inspect cables for chafing and other damage.

13 (Rev-0)

3.2.6 Zinc anodes.

3.2.6.1 The Contractor must remove all marine growth and oxide coating from all hull, rudder, shaft strut, sea chest, sea beam array, z-drive, and thruster tunnel zinc anodes, or water jet drives anodes, as applicable, using a light-wire brush.

3.2.6.2 The Contractor must visually inspect all zinc anodes; check the soundness of mounting strap and stud welds, missing fasteners, and percentage of remaining material.

3.2.7 Coating system inspections. The Contractor must accomplish the below inspections, in conjunction with the underwater hull inspection conducted by the Underwater Hull Inspection Board (UWHIB).

Document the condition found as “Partial - Condition A”, “Partial - Condition B”, “Partial Condition C”, or “100%”, as applicable (see 4.1 (Definitions)). Submit a CFR.

NOTE

The following inspections are for determining the existing condition of the coating system for the underwater body surfaces, which are deemed “Critical-coated” surfaces; they must be carried out by a SSPC-QP-1 certified contractor/sub-Contractor or a NACE Inspector – see SFLC Std Spec 0000, paragraph 3.2.4.2 (In-process QC measures for “critical-coated surfaces”).

3.2.7.1 Visual. Perform a visual inspection of the existing U/W body coating system.

3.2.7.2 Dry film thickness (DFT) measurements. Take total DFT measurements of the U/W body coating system, in accordance with SSPC-PA 2.

4. NOTES

4.1 Definitions.

4.1.1 "Partial – Condition A”: The condition that exists where the substrate is exposed in up to 33% of the entire U/W body.

4.1.2 "Partial - Condition B": The condition that exists where the anticorrosive (AC) undercoating system has incurred damage, but, the u/w body hull substrate is not exposed in any location.

4.1.3 "Partial - Condition C”: The condition that exists where damage is confined to the antifoulant (AF) topcoating; the epoxy undercoating system is not exposed in any location.

4.1.4 "100%”: The condition that exists where more than 33% of the U/W body hull substrate is exposed.

4.2 UWHIB convention. 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.

14 (Rev-0)

11010_UT_ESD_1021_FLT

REC_11010_UT_FLT_75 WLR (‘D’ Class : CGC WEDGE 75307 (0911)

WORK ITEM 2: Hull Plating, U/W Body, Ultrasonic Testing - Tender

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to conduct ultrasonic testing

(UT) of U/W hull plating.

1.2 Government-furnished property.

None.

2. REFERENCES

COAST GUARD DRAWINGS

Coast Guard Drawing 75D WAGL 700-004, Rev-, 75FT “D” Class Towboat Docking Block

Arrangement

Coast Guard Drawing 75D WAGL 1101-001, Rev C, Shell Expansion (75306-75307)

COAST GUARD PUBLICATIONS

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

OTHER REFERENCES

None.

3. REQUIREMENTS

3.1 General.

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

3.2 (UT measurements).

15 (Rev-0)

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

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

3.2 UT measurements. The Contractor must perform a total of 300 UT measurements of U/W hull surfaces, in locations designated by the Coast Guard Inspector, using Coast Guard Drawings 75D WAGL

700-004 and 75D WAGL 1101-001 for guidance, in accordance with SFLC Std Spec 0740, Appendix C.

Mark up a copy of Coast Guard Drawing 75D WAGL 1101-001 to show all locations selected for measurement and record all measurements in Table I (UT Measurements Summary Sheet - Port/Stbd

Shell) provided at the end of this item. Submit A CIR, to also include the marked up drawing and completed Table I.

4.1 UT Table. Table 1 provided below is for the recording of all UT measurements.

16 (Rev-0)

TABLE 1 - UT MEASUREMENTS SUMMARY SHEET PORT/STBD SHELL

SHOT # STRAKE # FWD/MID/AFT ORIG PL MEASURED PL PERCENT

PLATE # TOP/MID/BOT THICKNESS THICKNESS WASTAGE

17 (Rev-0)

63130_1021_JCS

REC_63130_100Percent_FLT_75’ WLR (‘D’ Class: CGC WEDGE 75307 (0921)

WORK ITEM 3: U/W Body, Preserve, 100 percent - Tender

1. SCOPE

1.1 Intent. This work item describes…