USCGC MOHAWK FY23 DDS Statement of Work.pdf

USCGC MOHAWK (WMEC 913)

SPECIFICATION FOR DRYDOCK REPAIRS

FY2023

Developed By: Brett M Gardner

(Rev-0, 27 July 2022)

USCGC MOHAWK (WMEC-270B) DRYDOCK AVAILABILITY FY2023

ii (Rev-0)

TABLE OF CONTENTS

Revisions Record ......................................................................................................................................... iii Consolidated List of References ................................................................................................................... iv Consolidated List of Government-furnished Property .............................................................................. viii Consolidated List of Critical Inspection Items .............................................................................................. x Principal Characteristics ............................................................................................................................... xi General Requirements WORK ITEM 1: Hull Plating, Side Scan, Ultrasonic Testing WORK ITEM 2: Hull Plating, U/W Body, Ultrasonic Testing WORK ITEM 3: U/W Body, Preserve, 100 percent WORK ITEM 4: Hull Plating Freeboard, Preserve, 100 Percent WORK ITEM 5: Appendages (U/W), Preserve (Internal) and Leak Test WORK ITEM 6: Propulsion Shaft Fairwaters And Rope Guards, Inspect WORK ITEM 7: Voids (Non-Accessible), Preserve (Internal) and Leak Test WORK ITEM 8: Main Mast, Preserve, 100 Percent WORK ITEM 9: Propulsion Shafting, Strain Gage Alignment, Inspect WORK ITEM 10: Propulsion Propeller Shaft Coating, Inspect and Test WORK ITEM 11: Propulsion Shaft Seal (Mechanical And Inflatable) Assemblies, Inspect and Repair or

Renew WORK ITEM 12: Controllable Pitch Propellers, Clean and Inspect WORK ITEM 13: Controllable Pitch Propeller (CPP) System, Inspect and Service WORK ITEM 14: Controllable Pitch Propeller (CPP) Hubs, Remove, Inspect and Reinstall WORK ITEM 15: Sea Valves and Waster Pieces, Overhaul Or Renew WORK ITEM 16: Sea Strainers, Duplex, All Sizes, Overhaul WORK ITEM 17: Sea Strainers, Simplex, All Sizes, Clean and Inspect WORK ITEM 18: Rudder Assemblies, Inspect and Repair WORK ITEM 19: Superstructure, Preserve, 100 Percent WORK ITEM 20: Cathodic Protection, Zinc Anodes, Renew, WORK ITEM 21: Drydock WORK ITEM 22: Temporary Services, Provide - Cutter WORK ITEM 23: Line Shaft (Pedestal) Bearings, Renew WORK ITEM 24: Valves, Overhaul Or Renew WORK ITEM 25: Tanks, Ballast, Preserve, 100 Percent WORK ITEM 26: Tanks, Dirty Oil and Waste, Preserve, 100 Percent, WORK ITEM 27: Striker Plate, Chain Locker, Renew and Preserve WORK ITEM 28: Aux. No. 1 Deck Plating, Renew WORK ITEM 29: Fantail Towing Chock Foundation, Renew WORK ITEM 30: Reverse Osmosis Feed Pump Foundation, Renew WORK ITEM 31: Deep Water Sounder, Remove WORK ITEM 32: Auxiliary Salt Water Pump, Replace iii (Rev-0)

REVISIONS RECORD

This page is used to record specification revisions, which may have occurred subsequent to a Revision 0 (Rev-0) package. Information listed is intended to provide contractors and field unit personnel a means to ensure all the current specification revision pages are present when reviewing or utilizing this specification package.

DATE REV# WORK

ITEM#

CHANGES MADE

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

iv (Rev-0)

CONSOLIDATED LIST OF REFERENCES

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

All Coast Guard drawings, technical publications, and standard specifications will be provided to contractors by the Coast Guard at an appropriate time, or upon request, free of charge. Other Government documents may be accessed – free of charge – from links located on the SFLC website. Commercial sites provide access to their respective documents.

COAST GUARD DRAWINGS

Coast Guard Drawing 901 WMEC 256-012, Rev -, Shaft Seal Vent Line Modification

Coast Guard Drawing 901 WMEC 424-005, Rev-, ODOM DF3200 Fathometer System Removal

Coast Guard Drawing 901 WMEC 451-010, Rev D, 1SG38-SINS2(V)45 Installation BWD and Details

Coast Guard Drawing 901 WMEC 451-011, Rev B, 1SG38-SINS2(V)45 Installation Wiring Data

(COED)

Coast Guard Drawing 901 WMEC 562-005, Rev J, A & B Class Rudder Stock and Steering Gear A & D

Coast Guard Drawing 901 WMEC 612-004, Rev A, NAVSEA Certified Flight Deck Net Installation.

Coast Guard Drawing 905 WMEC 111-001, Rev E, Shell Expansion FWD 101

Coast Guard Drawing 905 WMEC 111-002, Rev F, Shell Exp Aft 182

Coast Guard Drawing 905 WMEC 111-003, Rev F, Shell Exp FR 101-182

Coast Guard Drawing 905 WMEC 113-001, Rev C, Tank Top PL & FR FWD FR 101

Coast Guard Drawing 905 WMEC 114-001, Rev D, Skeg

Coast Guard Drawing 905 WMEC 114-002, Rev C, Bilge Keels

Coast Guard Drawing 905 WMEC 114-003, Rev B, Shaft Fairwaters & Rope Guards

Coast Guard Drawing 905 WMEC 116-001, Rev C, CVK FWD 101 & Girder Long 2

Coast Guard Drawing 905 WMEC 123-002, Rev C, Chain Lkr Bhds & Details

Coast Guard Drawing 905 WMEC 131-002, Rev C, Main Deck Plating & Framing Aft 182

Coast Guard Drawing 905 WMEC 141-001, Rev E, 1st Platf PL & FR Fwd 103

Coast Guard Drawing 905 WMEC 162-001, Rev B, Stacks

Coast Guard Drawing 905 WMEC 171-001, Rev F, Main Mast

Coast Guard Drawing 905 WMEC 184-010, Rev E, XDCR FDNS & Shell Mods

Coast Guard Drawing 905 WMEC 184-014, Rev B, Structural Mods Incidental to DS60 Doppler Install

& ODOM DWDS Rip-Out

Coast Guard Drawing 905 WMEC 185-015, Rev F, Aux Mchry Space No2 Fdn

Coast Guard Drawing 905 WMEC 185-020, Rev B, Reverse Osmosis Plant Foundation

Coast Guard Drawing 905 WMEC 233-005, Rev A, Piping Schematic (Fuel Oil System)

Coast Guard Drawing 905 WMEC 243-001, Rev B, Shafting Arrangement

Coast Guard Drawing 905 WMEC 243-002, Rev F, Stern Tubes Strut Brg and Seal - A & D

Coast Guard Drawing 905 WMEC 243-005, Rev C, Shaft Alignment Analysis and Procedures v (Rev-0)

Coast Guard Drawing 905 WMEC 243-006, Rev B, General Arrangement 12.125” Dia. Shaft Type MA

Water Lub, Inboard Stern Tube Seal

Coast Guard Drawing 905 WMEC 243-010, Rev A, General Arrangement of 10.500” Dia. Bulkhead

Stuffing Box

Coast Guard Drawing 905 WMEC 243-012, Rev A, Controllable Pitch Propeller Shafting Details

Coast Guard Drawing 905 WMEC 244-001, Rev A, Line Shaft Bearing

Coast Guard Drawing 905 WMEC 245-001, Rev H, CPCH Prop Hyd Sys Diagram

Coast Guard Drawing 905 WMEC 245-003, Rev C, Controllable Pitch Propeller Propeller Hub Assy

Coast Guard Drawing 905 WMEC 245-004, Rev A, Controllable Pitch Propeller Blade & Palm

Coast Guard Drawing 905 WMEC 245-007, Rev C, Controllable Pitch Propeller Special Tools

Coast Guard Drawing 905 WMEC 245-008, Rev B, Controllable Pitch Propeller Actuating Unit 300.3GN

Coast Guard Drawing 905 WMEC 245-009, Rev C, CPCH Prop Hyd Sys Power Plant A & D

Coast Guard Drawing 905 WMEC 256-001, Rev V, Main & Auxiliary Salt Water Cooling System

Diagrams

Coast Guard Drawing 905 WMEC 256-002, Rev J, Eng Rm SW Cooling Sys A&D

Coast Guard Drawing 905 WMEC 256-004, Rev E, AMS SW Cooling Sys A&D

Coast Guard Drawing 905 WMEC 256-011, Rev A, Main & Auxiliary Salt Water Cooling System

Diagram

Coast Guard Drawing 905 WMEC 259-002, Rev C, Diesel Exhaust System Arr & Det

Coast Guard Drawing 905 WMEC 320-002, Rev H, Power System Feeders IWD

Coast Guard Drawing 905 WMEC 320-003, Rev K, Power System Hold

Coast Guard Drawing 905 WMEC 320-012, Rev F, 60 HZ Pwr Sply to ELEX Equip

Coast Guard Drawing 905 WMEC 320-013, Rev AR, Electronic Power Distribution

Coast Guard Drawing 905 WMEC 320-014, Rev AN, Electrical One-Line Diagram

Coast Guard Drawing 905 WMEC 400-009, Rev AA, Command and Surveillance Wiring Data (COED)

VOL. 5 Navigation Equipment Wiring Data

Coast Guard Drawing 905 WMEC 401-001, Rev AR, Arrangement Pilothouse & Bridge Wings

Coast Guard Drawing 905 WMEC 401-005, Rev AH, Arrangement Communication Center

Coast Guard Drawing 905 WMEC 506-002, Rev G, Ovfl, Air Escape & Sounding Tube A&D Fwd Fr

Coast Guard Drawing 905 WMEC 521-013, Rev –, Fire Main and Sprinkler System Diagram

Coast Guard Drawing 905 WMEC 524-003, Rev C, Sea Conn, Sea Chest and Waster Piece A&D

Coast Guard Drawing 905 WMEC 529-006, Rev -, Ballasting & Emer Bilge Drainage Sys Diagram

Coast Guard Drawing 905 WMEC 562-003, Rev B, GA of 11.10” Type ES Rudderstock Seal for WMEC

Coast Guard 270’ BEAR Class Cutters

Coast Guard Drawing 905 WMEC 581-002, Rev B, Hawse & Chain Pipes

Coast Guard Drawing 905 WMEC 582-001, Rev E, Mooring & Towing Fittings A&D

Coast Guard Drawing 905 WMEC 593-004, Rev E, Sewage Transfer System- A&D

Coast Guard Drawing 905 WMEC 602-002, Rev C, Distinguishing Figures

Coast Guard Drawing 905 WMEC 631-001, Rev L, Paint Schedule

Coast Guard Drawing 905 WMEC 633-001, Rev B, Cathodic Protection A & D

Coast Guard Drawing 905 WMEC 801-005, Rev F, General Arrangement Main Deck

Coast Guard Drawing 905 WMEC 801-006, Rev D, General Arrangement 1st Platform vi (Rev-0)

Coast Guard Drawing 905 WMEC 801-009, Rev J, Outboard Profile

Coast Guard Drawing 905 WMEC 801-020, Rev D, Booklet of General Plans

Coast Guard Drawing 905 WMEC 801-040, Rev G, Docking Plan

Coast Guard Drawing 905-WMEC 801-025, Rev A, Booklet Of General Plans

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

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

Naval Sea Systems Command (NAVSEA) 0944-LP-005-0010, Propeller Controller Ptch Plant

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

COAST GUARD PUBLICATIONS

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

Manual

Coast Guard Technical Publication (TP) 2817, SWBS 245, Section A, Feb 2018, Controllable Pitch

Propeller System

Coast Guard Technical Publication (TP) 5454, Nov 2013, Technical Manual for Type MA Mechanical

Stern Tube Seal

Coast Guard Technical Publication (TP) 9169, Aug 2018, Electro-Hydraulic Steering System & Alarm

System Upgrade, 270’ WMEC “A” and “B” Class Cutters

Coast Guard Technical Publication E-424-027, 2012, SOUNDER, DEEP WATER - MODEL DF3200

Coast Guard Technical Publication TP-2816, Mar 1986, Manufacturer’s Instruction Book - SWBS

Group(s) 242-244, 270’ WMEC “B” Class Cutters, Section 244, Technical Manual for Cooper Split

Roller Bearings

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 0850 (SFLC Std Spec 0850), 2020, General

Requirements for Drawing Preparation

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 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

OTHER REFERENCES

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

Personal Qualification and Certification in Nondestructive Testing vii (Rev-0)

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

Welding End

ASTM International (ASTM) D1330, 2015, Standard Specification for Rubber Sheet Gaskets

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

Adhesives (AN)

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

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

Petrolatum

Flow Serve User Instructions Manual, 71569102

International Standard Organization (ISO) 4406, 2017, Hydraulic Fluid Power – Fluids – Method for

Coding the Level of Contamination by Solid Particles – Third Edition

Manufacturers Standardization Society of the Valve and Fittings Industry (MSS) SP-61, 2013 Edition, Pressure Testing Of Steel 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, 2018, Pipe

Hangers and Supports – Materials, Design, Manufacture, Selection, Application and Installation

MIL-A-18001, Dec 2015, Anodes, Sacrificial Zinc Alloy

MIL-PRF-16173E, Oct 2017, Corrosion Prevention Compound, Solvent Cutback, Cold-Application

MIL-PRF-17672E, Oct 2012, Hydraulic Fluid, Petroleum, Inhibited

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

Society of Automotive Engineers (SAE) Aerospace Material Specification (AMS) C6183, 2013, 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

Society of Automotive Engineers (SAE) AMS-G-6032, August 2012, 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), 2016, Solvent 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)/NACE International (NACE) Joint Surface Preparation

Standard SSPC-SP WJ-2, 2012, Waterjet Cleaning of Metals – Very Thorough Cleaning viii (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)

11 N Stern tube seal major overhaul kit

NSN: 5330-01-527-0959 2 ea. 34,607.00

11 N **Stern tube seal split seat

NSN: 5330-01-359-5555 2 ea. 12,708.00

11 N **Stern tube seal face change out kit

NSN: 5330-01-527-0696 2 kt. 8,954.00

11 N Automatic Air

Eliminator

PN: AE36 NSN: 4820-01-690-

2 ea. 543.00

13 N O.D. Box Inspection

Kit

NSN: 3010-01470-3519 2 kt. 1,173.00

13 N Filter NSN: 4330-01-177-4069 12 ea. 97.00

13 Y **Oil Feed Bushing NSN: 3120-12-329-5287 2 ea. 14,800.00

13 N **Ball Bearing NSN: 3110-00-156-6745 2 pr. 120.00

13 N **Bearing Bushing NSN: 2010-01-469-8639 2 ea. 1,300.00

13 N **Bearing Bushing NSN: 3120-12-198-7607 8 ea. 1,300.00

13 N **Spool valve assembly

NSN: 4820-01-513-2509 2 ay. 30,000.00

14 N Hub Installation kit NSN: 2010-01-470-3258 2 kt. 215.00

14 Y **Left hand hub assembly

NSN: 2010-01-119-5469 1 ea. 304,313.00

14 Y **Right hand hub assembly

NSN: 2010-01-118-8538 1 ea. 304,313.00

14 N ***CPP Tool Kit N/A 1 se. 20,000.00

14 N *"Special tools" (see

4.2 (Government-loaned installation tools))

N/A 1 se. 1,000.00

14 Y **Propeller Blade-RH

(Port)

NSN: 2010-01-119-3972 1 se. 40,000.00

14 Y **Propeller Blade-LH

(Stbd)

NSN: 2010-01-120-2871 1 se. 40,000.00

14 N O-Ring NSN: 5330-01-120-5229 8 ea. 97.00

14 N O-Ring NSN: 5330-01-118-8529 8 ea. 96.00

14 N Blade Washer NSN: 5310-01-335-4361 48 ea. 112.00

14 Y **Shoulder bolt NSN: 5306-01-118-8337 8 ea. 1,897.00

14 Y **Shoulder blade bolt NSN: 5306-01-119-3607 16 ea. 857.00

18 N John Crane Seal kit NSN: 5330-01-527-0778 2 ea. 5,955.00

18 Y **Rudder Assembly NSN: 2040-01-486-0550 2 ea. 182,000.00

18 N **Upper Bearing NSN: 3110-01-121-8032 2 ea. 3,910.00

18 N **Thordon Lower

Bearing (SXL 20.7" X

PN: F546150102 2 ea. 1,000.00 ix (Rev-0)

17.5" X 14)

21 Y *Transducer Cover

Plate

N/A 4 ea. 50.00

23 N **Pillow Block Roller

Bearing

NSN: 3130-01-359-5716 PN:

01-BVP-1008-EXIG

2 ea. 25,200.00

24 N 6 inch MSW Valve N/A 4 ea. N/A

32 N ***Auxiliary Salt

Water Pump

PN: Durco MK3 Pump

2K6X4V-13

2 ea 42,000.00

*Government-loaned property, which must 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 x (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 3.2.6.1.4

(Inspection report particulars)):

Work

Item Title

1 Hull Plating, Side Scan, Ultrasonic Testing

2 Hull Plating, U/W Body, Ultrasonic Testing

3 U/W Body, Preserve, 100 percent

5 Appendages (U/W), Preserve (Internal) and Leak Test

7 Voids (Non-Accessible), Preserve (Internal) and Leak Test

10 Propulsion Propeller Shaft Coating, Inspect and Test

Propulsion Shaft Seal (Mechanical And Inflatable) Assemblies, Inspect and Repair or

Renew

12 Controllable Pitch Propellers, Clean and Inspect

13 Controllable Pitch Propeller (CPP) System, Inspect and Service

14 Controllable Pitch Propeller (CPP) Hubs, Remove, Inspect and Reinstall

16 Sea Strainers, Duplex, All Sizes, Overhaul

17 Sea Strainers, Simplex, All Sizes, Clean and Inspect

18 Rudder Assemblies, Inspect and Repair

32 Auxiliary Salt Water Pump, Replace xi (Rev-0)

PRINCIPAL CHARACTERISTICS

270' WMEC (B-CLASS)

PHYSICAL

Length overall 270' 0"

Length between perpendiculars 255' 0"

Beam molded 38' 0"

Depth molded, main deck amidships, 01 level amidships

23' 7"

31' 4"

Full load displacement 1,886 long tons

Draft, full load to baseline amidships 14' 2"

Highest projection above baseline

*height approximated

≈ 110' 0"

Shore tie voltage requirements 2 cables, 400A / 450V, 3 phase

Frame spacing 1' 0"

MACHINERY

Main propulsion 2 ALCO Model 18-251-F Diesel Engines, 3,650 BHP each

Ship’s service generators 2 Caterpillar Model D-398-TA Diesel-driven KATO 6P6-1350 Generators. 475

KW each @ 0.8 power factor, 450VAC, 3 phase, 60 cycle

Emergency generators Caterpillar Model D-348-TA Diesel-driven KATO 4P4-1900. 475KW @ 0.8 power factor, 450VAC, 3 phase, 60 cycle

Number of propellers 2

Propeller diameter 9' 0"

Number of blades, each 4

Pitch Controllable

Shaft RPM 260

Shaft diameter 10.55" at exit of hull

Anchor & chain Two 4,000 lb Navy Stockless Anchors, 8 shots of chain each

TANK CAPACITIES

Diesel fuel total (95%) 79,950 gal.

JP-5 total (95%) 19,626 gal.

Potable water total (100%) 8,553 gal.

Hydraulic & lube oil total (95%) 2,561 gal.

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 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 four Coast Guard fire watch personnel.

Provide fire watch personnel and fire extinguishers for the duration of the availability period, during and beyond noted Coast Guard fire watch support.

3.3 Preservation requirements. The Contractor must accomplish all preservation tasks, including touch-ups, in accordance with SFLC Std Spec 6310.

3.3.1 Brand name approval. Ensure that all contractor-furnished coatings are in accordance with SFLC Std Spec

6310, Appendix C (Authorized Coatings for Use on Cutters and Boats).

3.3.2 Coating colors and system color schemes. The Contractor must obtain a written KO authorization to deviate from any coatings required in SFLC Std Spec 6310 Appendix C before work.

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

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

3.3.3.1.1 Surface profile measurements. One surface profile measurement must be taken for every 200 square feet for the first 1000 square feet; for each additional 500 square feet or less, one profile measurement must be taken.

Profile measurements must be taken in accordance with SFLC Std Spec 6310, paragraph 3.1.8.3 (Surface profile measurements). A “measurement” for surface profile is defined as follows:

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

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

3.3.3.1.2 Soluble salt conductivity measurements. 5 conductivity measurements must be taken every 1000 square feet. For submerged (immersed) applications conductivity measurements must not exceed 30 microsiemens/cm.

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

3.3.3.1.3 Coating thickness measurements. Three area measurements must be taken for the first 1000 square feet;

for each additional 1000 square feet, perform an additional area measurement. A “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 (Rev-0)

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 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).

4 (Rev-0)

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.

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

5 (Rev-0) 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.

6 (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

7 (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 |

8 (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:

9 (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)

10 (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)

11 (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

12 (Rev-0)

11000_SideScan_ESD_1021_FLT

REC_11000_Side_Scan_FLT_270’ WMEC ‘B’ Class (ALL) (0821)

WORK ITEM 1: Hull Plating, Side Scan, Ultrasonic Testing

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to perform thickness measurements of underwater (u/w) hull plating by ultrasonic side scan method.

1.2 Government-furnished property.

None.

2. REFERENCES

COAST GUARD DRAWINGS

Coast Guard Drawing 905 WMEC 111-001, Rev E, Shell Expansion FWD 101

Coast Guard Drawing 905 WMEC 111-002, Rev F, Shell Exp Aft 182

Coast Guard Drawing 905 WMEC 111-003, Rev F, Shell Exp FR 101-182

Coast Guard Drawing 905 WMEC 801-040, Rev G, Docking Plan

COAST GUARD PUBLICATIONS

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

OTHER REFERENCES

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

Practice for Personal Qualification and Certification in Nondestructive Testing

3. REQUIREMENTS

3.1 General.

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

3.3 Side scan requirements and procedures.

3.1.2 Tech Rep.

Not applicable.

13 (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). Known interferences include, but are not limited to the following:

Hull zinc anode system

Docking blocks

3.2 Work coordination and preparation. The Contractor must plan all specified vessel work detailed in this specification package to ensure the side scan survey does not necessitate a work stoppage. The

Contractor must abide by the following guidance, to facilitate the ultrasonic survey:

Ensure that all u/w body surface preparation and primer coat application tasks are completed within ten days of lifting the vessel.

Provide a continuous supply of fresh water at .50 gpm within 50 feet of the vessel with standard hose bib fitting.

Provide 110 VAC electrical power, and scaffolding or other suitable means of access to bring inspection personnel within one foot of all the body surface inspection areas that are five feet above ground level.

After completion of the hull survey, and authorized hull repairs, resume/complete u/w body preservation process by applying the second coat of the anti-corrosive coating system, and all anti-fouling paint coats.

Pay close attention to manufacturer’s recommended practices in regards to paint system overcoat time limitations and required degree of surface cleanliness prior to resuming u/w body coating application.

3.3 Side scan requirements and procedures. The Contractor must ensure the following referring to the

Coast Guard drawings listed in Section 2 (References) herein as guidance during the performance of the tasks specified below and submit a CIR.

3.3.1 Testing company and personnel. Provide the services of a qualified ultrasonic testing company, with suitable side scan equipment, to conduct a “Scanning Crawler Automated Test” of the vessel’s u/w hull plating for the presence of metal corrosion and deterioration. Ensure the following:

All scanning operations are completed by personnel meeting the personnel qualification and certification, as required by contractor process. This contractor-developed personnel qualification and certification process must meet, at a minimum, ASNT Recommended

Practice No. SNT-TC-1A.

An SNT Level III Analyst is on site, to oversee the project and evaluate the collected data.

An SNT Level III or II Analyst is on site, to verify with a hand held gauge all areas on the hull identified as thinner than the specified criteria, in order to expedite all repair procedures.

Qualified personnel are provided to complete all on-site corrosion inspections.

3.3.2 Coast Guard notification. Accomplish all required tasks within 10 calendar days of the start of the availability.

3.3.2.1 Provide a daily update to the COR on all areas inspected and potential issues or schedule changes.

14 (Rev-0)

3.3.2.2 Notify the COR at least 3 days prior to completion for an onsite review of readings and repair areas.

3.3.3 Scanning parameters. Use the following parameters during the course of this inspection:

Automated scanning resolution must be set to 0.5” x 0.5”

Plates where scan data indicating wastage greater than or equal to 25% nominal plate thickness must be highlighted in “RED” and designated “repair areas”.

Plates where scan data indicating wastage greater than or equal to 15% to 24% of nominal plate thickness must be highlighted in “YELLOW”.

Plates where scan data indicating wastage greater than or equal to 10% to 14% of nominal plate thickness must be highlighted in DARK GREEN.

Hand held UT readings must be taken to verify bad metal areas found with the side scan equipment. All readings must be provided to the COR and the lowest reading marked on the hull at the bad metal location.

Areas that are accessible but cannot be reached by the automated scanner must be scanned with a hand-held meter at a resolution of 2” x 2”. Any repair areas found during the hand scan must be marked on the ship’s hull and their approximate positions recorded on the plate drawings and report summary.

3.3.3.1 Any scanning parameter or scope of work changes must be approved by the KO.

3.3.3.2 The echo to echo transducer is not authorized due to inconsistent readings and technical difficulties.

3.3.3.3 There must be no deviation from the color scheme specified above.

3.3.4 Ensure that the side scan inspection area includes the Port, Starboard, and Transom exterior shell plate below the water line, but excludes the following list.

Areas under and within 6-inches of blocks and side blocks (areas that are accessible 6 inches from blocks and side blocks must be hand scanned.)

Areas up to 6-inches around any obstacle on the hull including sea suctions, discharges, rudderposts, knuckle, bow stem, stabilizer tubes, and stern tubes, as applicable.

Any areas blocked by immovable scaffolding or shipyard activity.

3.4 Side scan reports. The Contractor must submit to the COR a final report within 3 working days after the side scan inspection is completed. A copy of all repair areas must be clearly marked, in yellow or white, on the provided shell plate drawing(s), and provide a summary document of same areas. Submit two hard copies of the report with two CD’s containing the electronic (raw) data, as part of the CIR submission prior to departing the job site. Ensure the reports include:

Inspection overview.

Data sheets for each plate with designated repair areas outlined in blue. Each data sheet must contain at least one longitudinal reference (e.g. frame or bulkhead number) and one athwartships reference (e.g. hull stringer number).

Mosaic of scanned data overlaid semi-transparently on Coast Guard Drawings 905 WMEC

111-001, 905 WMEC 111-002 and 905 WMEC 111-003.

15 (Rev-0)

3.4.1 Photos. Provide digital photos of all designated repair areas.

3.4.2 Electronic files. Ensure CD’s contain a complete copy of the report, interactive data files, and digital pictures. All electronic files must be compatible with standard USCG workstation operating software.

Electronic files format must be such that the CG has the capability to change the percent of wastage

(format conditioning) per plate. Electronic files must be capable of being opened using MS Word, MS

Excel, or PDF software. Digital pictures must be recorded in JPEG format.

3.5 Repair plan. The Contractor must submit a plan to accomplish repairs based on the final side scan report. The report must include all applicable external and internal interferences in way of structural repairs. Submit CFR.

4. NOTES

This section is not applicable to this work item.

16 (Rev-0)

11010_UT_ESD_1021_FLT

REC_11010_UT_FLT_270’ WMEC ’B’…