WAHOO (WPB 87345) DD SPEC.doc

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USCGC WAHOO (WPB 87345) DRYDOCK REPAIRS Federal contract opportunity
Solicitation number
70Z080-21-Q-P4500600
Issued by
Department of Homeland Security US Coast Guard

About this file

This document outlines requirements for drydock repairs to the USCGC WAHOO (WPB 87345). Key details include specifications for structural analysis using 3D laser scanning, ultrasonic thickness measurements of hull plating and frames, cleaning and inspection of fuel and waste tanks, preparation and coating of underwater hull surfaces and freeboard areas to prevent corrosion, renewal of the capastic transducer fairing, preservation of the mast, and operational testing of equipment before and after repairs. The Coast Guard is soliciting these services from contractors with experience in ship repair, nondestructive testing, coating application, and working on Coast Guard cutters according to provided technical specifications and drawings.

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USCGC WAHOO (WPB 87345)

SPECIFICATION FOR DRYDOCK REPAIRS

FY2021

Developed By: James E Beechey (Rev-0, 6 April 2020)

TABLE OF CONTENTS

iii

Revisions Record iv

Consolidated List of References viii

Consolidated List of Government-furnished Property xi

Consolidated List of Critical Inspection Items xii

Principal Characteristics

General Requirements

WORK ITEM 1: Structural Analysis, 3D Laser Scan, Perform

WORK ITEM 2: Hull Plating (Side Scan), Ultrasonic Testing

WORK ITEM 3: Ultrasonic Thickness Measurements, Perform

WORK ITEM 4: U/W Body, Preserve (100%)

WORK ITEM 5: Hull Plating Freeboard, Preserve “100%”

WORK ITEM 6: Tank, Dirty Oil, Clean and Inspect

WORK ITEM 7: Tank, Oily Water, Clean and Inspect

WORK ITEM 8: Tanks (MP Fuel Service), Clean and Inspect

WORK ITEM 9: Decks, Exterior (Main Deck), Preserve

WORK ITEM 10: Capastic Fairing, Depth Sounder, Renew

WORK ITEM 11: Mast, Preserve (“100%”) – Contractor Interference Removal

WORK ITEM 12: Main Diesel Engine Assemblies, Perform W-5 Maintenance And Update Control System Configuration

WORK ITEM 13: Main Engine/Reduction Gear, Realign

WORK ITEM 14: Intermediate Water-Lubricated Propulsion Shaft Bearings, Renew

WORK ITEM 15: Aft Water-Lubricated Propulsion Shaft Bearings, Renew

WORK ITEM 16: Intermediate Bearing Carriers, Renew

WORK ITEM 17: Aft Bearing Carriers, Renew

WORK ITEM 18: Stern Tube Interior Surfaces, Preserve 100%

WORK ITEM 19: Propellers, Renew

WORK ITEM 20: Speed Log, Skin Valve, Renew

WORK ITEM 21: Sea Water System, Perform Maintenance

WORK ITEM 22: Rudder Assemblies, Renew

WORK ITEM 23: Stern Launch Door, Remove, Inspect and Reinstall

WORK ITEM 24: Cathodic Protection/Zinc Anodes, Renew

WORK ITEM 25: Drydock

WORK ITEM 26: Temporary Services, Provide - Cutter

WORK ITEM 27: Sea Trial Performance, Support, Provide

WORK ITEM 28: Fathometer Transducer, Renew

WORK ITEM 29: HVAC 2-Stage Intake Separator, Modify

WORK ITEM 30: Main Mast, Modify

WORK ITEM 31: Oily Water Separator, Remove

WORK ITEM 32: Propulsion Shaft and Shaft Seals, Replace

WORK ITEM 33: 24VDC Distribution System, Upgrade

WORK ITEM 34: Coupling, Sewage Tank TLI, Renew

WORK ITEM 35: Interior Deck Covering System, Reseal

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.

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 87 WPB 085-001, Rev -, Tank Capacity Curves Coast Guard Drawing 87 WPB 085-011, Rev C, Lifting Slings Coast Guard Drawing 87 WPB 085-012, Rev A, Lifting Cradle Coast Guard Drawing 87 WPB 085-013, Rev B, Docking Plan Coast Guard Drawing 87 WPB 111-001, Rev H, Shell Expansion Coast Guard Drawing 87 WPB 111-050, Rev A, Updates to DWG 87-WPB-111-001 Exhaust Port Insert Plate Installation and Details Coast Guard Drawing 87 WPB 113-001, Rev G, Platform Plating & Framing Coast Guard Drawing 87 WPB 113-002, Rev B, Galley/Mess Deck Bilge Access Coast Guard Drawing 87 WPB 116-001, Rev -, Longitudinal Girders and BHD’s Coast Guard Drawing 87 WPB 122-001, Rev C, Watertight Bulkheads Coast Guard Drawing 87 WPB 163-001, Rev H, Sea Chest Details Coast Guard Drawing 87 WPB 165-001, Rev F, Transducer Details Coast Guard Drawing 87 WPB 171-001, Rev W, Mast Details Coast Guard Drawing 87 WPB 182-001, Rev C, Main Engine & Generator Foundations Coast Guard Drawing 87 WPB 243-003, Rev -, Propulsion Shaft Details Coast Guard Drawing 87 WPB 245-003, Rev A, Propeller Details Coast Guard Drawing 87 WPB 252-002, Rev P, Alarm & Monitoring System Coast Guard Drawing 87 WPB 256-001, Rev AC, Seawater Cooling Piping Coast Guard Drawing 87 WPB 310-001, Rev J, Ship’s Service One-Line Diagram Coast Guard Drawing 87 WPB 313-001, Rev N, DC System Coast Guard Drawing 87 WPB 331-001, Rev P, Lighting System Deck Plan Coast Guard Drawing 87 WPB 423-001, Rev W, Speed Log & Depth Sounder System Coast Guard Drawing 87 WPB 514-001, Rev M, HVAC Duct & Piping Systems Coast Guard Drawing 87 WPB 514-004, Rev -, Mods to HVAC Intake Duct Coast Guard Drawing 87 WPB 561-001, Rev L, Steering System Details Coast Guard Drawing 87 WPB 562-001, Rev A, Rudder Details Coast Guard Drawing 87 WPB 583-001, Rev W, RIB Deployment Structure Coast Guard Drawing 87 WPB 593-001, Rev L, Sewage Piping Coast Guard Drawing 87 WPB 593-002, Rev E, Oily Water Separator Piping Coast Guard Drawing 87 WPB 601-001, Rev R, Outboard Profile & General Arrangements Coast Guard Drawing 87 WPB 602-001, Rev F, Visual ID and Draft Mark Plan Coast Guard Drawing 87 WPB 631-001, Rev P, Ship’s Painting Schedule Coast Guard Drawing 87 WPB 633-001, Rev A, Cathodic Protection Coast Guard Drawing 87 WPB 634-001, Rev G, Deck Covering and Details Coast Guard Drawing 87 WPB 995-001, Rev -, Jigs and Fixtures for Shaft Installation Coast Guard Fleet Drawing FL 2804-12, Rev -, U.S.C.G. Emblem Coast Guard Fleet Drawing FL 2804-22, Rev-, Consolidated Visual ID for Cutters

COAST GUARD PUBLICATIONS

Coast Guard Commandant Instruction (COMDTINS) M10360.3 (series), Coatings and Color Manual Coast Guard Technical Publication (TP) 4499, Jun 2018, SWBS 243, Stern Tube Seal-Model 442C Coast Guard Technical Publication (TP) 4500, Sep 2017, SWBS 233, Engine Change-Out Guide - Waterborne Main Diesel Coast Guard Technical Publication (TP) 4506, Wartsila TM-EL-68839, Issue A, Mar 2005, Rudderstock Seal Type EL Coast Guard Technical Publication (TP) 4533, SWBS 233, 2002, Propulsion Internal Combustion Engines, Maintenance Manual Coast Guard Technical Publication (TP) 4564A, Electronic Steering System Coast Guard Technical Publication (TP) 4573, Coolant Heating System, 17 March 2003 Coast Guard Technical Publication (TP) 4593D, July 2011, SWBS 243, Manufacturer's Instruction Book, 87' WPB Propulsion Shaft Seal - Type F.S.E.

Coast Guard Technical Publication (TP) E-424-0230, SWBS 424, June 2006, Electromagnetic Log User’s Manual Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2018, General Requirements Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2018, Welding and Allied Processes Surface Forces Logistics Center Standard Specification 3041 (SFLC Std Spec 3041), 2018, Shipboard Electrical Cable Test Surface Forces Logistics Center Standard Specification 3042 (SFLC Std Spec 3042), 2018, Shipboard Electrical Cable Removal, Relocation, Splice, Repair, and Installation Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2018, Requirements for Preservation of Ship Structures Surface Forces Logistics Center Standard Specification 6341 (SFLC Std Spec 6341), 2018, Install Interior Deck Covering Systems Surface Forces Logistics Center Standard Specification 8634 (SFLC Std Spec 8634), 2018, Drydocking Surface Forces Logistics Center Standard Specification 8635 (SFLC Std Spec 8635), 2014, Temporary Services

OTHER REFERENCES

American Society for Nondestructive Testing (ASNT) SNT-TC-1A, 2016, Recommended Practice for Personal Qualification and Certification in Nondestructive Testing AN/SPS-73V Surface Search Radar (SSR), Sep 1998, Operation, Maintenance, and Installation Manual ASTM International (ASTM) D1330, 2015, Standard Specification for Rubber Sheet Gaskets ASTM International (ASTM) F992, 2006, Standard Specification for Valve Label Plates Bollinger Shipyard, USCG CPB Project MTU-FA 771903, 07 Feb 2000, Engine/Gearbox Plant Alignment Instructions 8V396 TE94/Flange mounted BW 255 Commercial Item Description (CID) A-A-59313, Nov 2003, Thread Compound; Antiseize, Zinc Dust-Petrolatum Commercial Item Descriptions (CID) A-A-59316, Nov 2016 Abrasive Materials for Blasting Installation of MTU Electronic Systems E 530 606/06E MIL-A-18001, Dec 2015, Anodes, Sacrificial Zinc Alloy (Commercially Accepted - ASTM B418) MIL-A-22262, Mar 1996; Abrasive Blasting Media Ship Hull Blast Cleaning MIL-A-46106b, Jun 1992, Adhesive-Sealants, Silicone, RTV, One-Component MIL-D-16791, Jan 1993, Detergents, General Purpose (Liquid, Non-ionic) MIL-DTL-1222, Dec 2000, Studs, Bolts, Screws and Nuts for Applications Where a High Degree of Reliability Is Required MIL-PRF-24139, Mar 1987, Grease, Multipurpose, Water Resistant.

MIL-PRF-24613, Nov 2007, Deck Covering Materials, Interior, Cosmetic Polymeric MIL-PRF-24635, 2009, Coating Systems, Weather-Resistant, Exterior Use MIL-PRF-24647, Apr 2013, Paint System, Anticorrosive and Antifouling, Ship Hull MTU 8V 396 TE.4 Maintenance Manual M020046/21E MTU 8V 396 TE94 Description and Operation Manual M011511/00E MTU 8V 396 TE94 Parts Catalog M033971/00DE, Order #771903 MTU 8V396 TE.4 Tolerances & Wear Limits List M070026/00E MTU Customer Connecting System CCS for ECS 396, E 531 415/00EMTU Electrical Start Device SUE-ES for ECS 396, E 531 482/00E MTU Customer Connecting System CCS for ECS 396, E 531 416/00E MTU Electrical Start Equipment SUE-ES Illustrated Parts Catalog E 535 187/00ED MTU Engine Control System Illustrated Parts Catalog E 535 145/01ED MTU Engine Management System Typ ECS 396/S Version E & F with ETB 4E/ETB 4F Document numbers; E 531 406/01 E, E 531 405/ 01E & E 531 403/02E MTU Exhaust Turbocharger ZR140 M040052/10E MTU Fluids and Lubricants Specification A001061/35E MTU Junction Box CCS-ECS 396E Illustrated Parts Catalog E 535 151/01ED MTU Local Operating Panel for ECS E 531 301/01E MTU Local Operating Panel LOP-ECS Illustrated Parts Catalog E 535 297/02ED MTU Monitoring & Control Unit Documentation E 535 164/00ED MTU Service Information 396-99/0562B Electric Governor Actuator with Oil Drain MTU Solenoid Actuator, Description, Assembly Instructions M040082/10E MTU Tool List M004021/20DE Raytheon Marine Company, Jan 1992, Technical Manual, Radar Set Model R40X/R41X, AN/SPS-69, RMC Document Number G261404 Society of Automotive Engineers (SAE) Aerospace Material Specification (AMS) C6183, 2013, Cork and Rubber Composition Sheet; for Aromatic Fuel and Oil Resistant Gaskets The Society for Protective Coatings (SSPC) Surface Preparation Specification No.1 (SSPC-SP 1), 2015, 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)/NACE International (NACE) Joint Surface Preparation Standard SSPC-SP 12/NACE No.5, 2002, Surface Preparation and Cleaning of Metals by Waterjetting Prior to Recoating 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 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
N
Slip Resistant Sheets
NSN: 7220-01-F11-2238
1 KT
5,352.24
12
Y
Cylinder Head
NSN: 2815-12-345-1076
16 ea.
3274.71
12
Y
A Bank Turbocharger
NSN: 2950-12-347-2009
2 ea.
12,642.58
12
Y
B Bank Turbocharger
NSN: 2950-12-347-2010
2 ea.
11,050.16
12
Y
Sea Water Pump
NSN: 2930-12-344-4810
2 ea.
15,086.29
12
Y
Jacket Water Pump
NSN: 2930-12-344-4606
2 ea.
3799.67
12
Y
Starter
NSN: 2920-12-156-2556
2 ea.
3255.35
12
Y
**Charge Air Cooler
NSN: 2930-12-354-2436
2 ea.
32,974.85
12
Y
**Injector with retainer
NSN: 2910-12-341-9988
16 ea.
706.45
12
N
**Cylinder Liner
NSN: 2815-12-315-7282
16 ea.
1103.14
12
N
**Piston
NSN: 2815-12-362-8999
16 ea.
3816.34
12
N/A
Engine Acceptance Test Record
N/A
1/MDE
N/A
13
Y
*Alignment jig
N/A
1 ea.
----
14
N
Thordon bearing, Grade Orange (5.5" OD x 4" ID x 7.87" (200mm) LG)
PN: F54615-02-8-1 NSN: 3120-21-914-2012
2 ea.
525.03
15
N
Thordon bearing, Grade Orange (5.5" OD x 4" ID x 11.41" (290mm) LG)
PN: F54615-02-8-0 NSN: 3120-21-914-2011
2 ea.
558.05
16
N
**Intermediate bearing carrier
NSN: 3130-01-F11-2388 P/N: 87 WPB 243-001, Item 17
2 ea.
591.86
17
N
**Aft bearing carrier
NSN: 3130-01-F11-2200 PN: 87 WPB 243-001, Item 14
2 ea.
1931.31
19
Y
Starboard Propeller (RH)
PN: 706-3351.00 RH NSN: 2010-01-457-0573
1 ea.
9153.07
19
Y
Port Propeller (LH)
PN: 706-3350.00 LH NSN: 2010-01-459-0421
1 ea.
9542.05
19
N
*Propeller Nut Wrench
N/A
1 ea.
200.00
19
N
Propeller Nut
PN: 5317350 NSN: 2010-01-458-9217
2 ea.
322.07
19
N
Propeller Nut, Locking
PN: 5317355 NSN: 5310-01-458-9125
2 ea.
285.10
19
N
Anode, Propeller Nut
PN: 87WPB243001ITEM39 NSN: 5342-01-481-8403
2 ea.
153.06
20
N
3" Ball Valve
NSN: 4810-01-517-8110 PN: LV071A
1 ea.
5625.00
20
N
**Doppler Speed Log Measurement Rod
NSN: 6605-01-470-1266
1 ea.
4984.63
21
N
Iron body/ Stainless steel stem/ bronze disk (flanged) 8"
PN: J022929-512431A NSN: 4820-01-613-5021
2 ea.
563.25
21
N
Iron body/ Stainless steel stem/ bronze disk (wafer) 8"
PN: 22929-112431A NSN: 4820-01-615-9571
2 ea.
521.46
21
N
Iron body/ Stainless steel stem/ bronze disk (flanged) 3"
PN: 22925-5124 NSN: 4820-01-650-0975
2 ea.
226.51
21
N
Iron body/ Stainless steel stem/ bronze disk (wafer) 3"
PN: 22925-1124316 NSN: 4820-01-332-6811
2 ea.
214.14
22
Y
Rudder Assembly, port
NSN: 2040-01-461-1944
1 ea.
6113.36
22
Y
Rudder Assembly, starboard
NSN: 2040-01-461-1943
1 ea.
5971.93
22
N
Upper Roller Bearing
NSN: 3110-01-512-5534
2 ea.
287.43
22
N
Wartsila EL Seals Kit
PN: H75492-01 NSN: 2040-01-565-9776
2 ea.
7243.42
22
N
Lower Bearing
PN: TBF113090 NSN: 3120-20-000-7677
2 ea.
405.81
23
N
**Valve assy, manifold
PN: USCG-MNFLD-87 NSN: 4820-01-535-0136
1 ea.
1,981.93
24
N
Anode, corrosion preventive
PN: 899Y105 NSN: 5342-00-813-6058
15 ea.
57.37
25
Y
*Transducer Cover Plate
N/A
2 ea.
50.00
28
Y
Transducer, sonar, w/ adapter ring
PN: 87-WPB-165-001 NSN: 5845-01-641-9744
1 ea.
1552.41
32
Y
Propeller Shaft
NSN: 2010-01-458-9175
2 ea.
10,195.95
32
N
Installation Kit, Shaft Seal
NSN: 5330-01-F18-5381
2 ea.
9443.00
33
N
Panel Bridge 24 V
NSN: 6110-01-F18-5605
1 ea.
2,548.00
33
N
Alternator
NSN: 6125-01-020-2950
2 ea.
6,415.00
33
N
Regulator Voltage
NSN: 5963-01-623-3549
2 ea.
350.00
33
N
Resistor Thermal
NSN: 5905-01-662-5504
2 ea.
35.00
33
N
Harness, Wiring
NSN: 5995-01-661-5659
2 ea.
75.00
33
N
Seal Plain
NSN: 5330-12-314-3403
2 ea.
56.32
33
N
Coupling Half
NSN: 4730-12-408-7920
2 ea.
1,572.87
33
N
Coupling, Flex
NSN: 3010-01-255-4200
2 ea.
480.44
33
N
Insert, Flexible Coupling
NSN: 3010-12-332-3557
2 ea.
830.23
33
N
Screw Machine
NSN: 5305-01-384-3454
12 ea.
3.71
33
N
Washer, Spring Tension
NSN: 5310-12-125-7798
12 ea.
2.44
33
N
Nut, Plain Hexagon
NSN: 5310-12-156-4982
12 ea.
2.33
33
N
Guard Plate
NSN: 2920-12-408-7817
2 ea.
250.00
33
N
Plate, Mounting
NSN: 5340-12-333-7085
2 ea.
75.00
33
N
Screw, Cap, Hexagon
NSN: 5305-01-240-1274
14 ea.
4.53
33
N
Washer, Spring Tension
NSN: 5310-01-195-9000
14 ea.
1.81
33
N
Screw Cap Hexagon
NSN: 5305-12-142-8243
4 ea.
7.92
33
N
Screw, Cap
NSN: 5305-12-142-8236
4 ea.
3.64
33
N
Washer, Flat
NSN: 5310-12-149-4352
8 ea.
2.35
33
N
Bracket
NSN: 2815-12-408-5547
4 ea.
130.18
34
N
**Panel, Deck, 5/8"x48"x96", Aluminum 5052-H32 Core, 1/4" Cell, 0.063" 6061-T6 Face Sheets, Natural Mill Finish
NSN: 2040-01-F19-5621 PN: SPXC-1000-1000D
1 ea.
654.00

*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

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

Work Item
Title
4
U/W Body, Preserve (100%)
21
Sea Water System, Perform Maintenance
22
Rudder Assemblies, Renew
23
Stern Launch Door, Remove, Inspect and Reinstall
25
Drydock
32
Propulsion Shaft and Shaft Seals, Replace

Principal Characteristics

87' WPB

Physical

Length overall
87'
Length between perpendiculars
81' 7"
Depth
10' 11"
Maximum beam
19.4'
Draft, mean to design waterline
5' 9"
Height of highest projection
50.2'
Full load displacement
93.5 long tons
Minimum operating displacement
83.9 long tons
Displacement, light ship
77.9 long tons
Framing
Longitudinal
Bulkheads
Four watertight bulkheads located below the Main Deck
Anchor
40 lb Fortress with 480 ft. 3 strand 5/8" dia. Line stayset

Hull

Hull/main weather deck material
ABS Grade AH 36
Superstructure
5086 Aluminum

Machinery

Main propulsion
Two MTU 8V396TE94, sequential turbo-charged diesels
Reduction gears
Two ZF Type BW 255
Propulsion shaft
Two AQUAMET 22, 101.6mm
Shaft diameter
4"
Shaft seal
Two John Crane mechanical seals
Shaft bearing, intermediate
Thordon Elastomeric Bearing
Shaft bearing, aft
Thordon Elastomeric Bearing
Number of propellers
2
Number of blades
5
Diameter of propeller
1040mm
Pitch
1230 mm fixed
Shaft RPM
828
Rudders
Two 316L Stainless Steel
Ship's service generators
Two Man Model D08241F01 diesel with Stanford 60KW Generator

Tank Capacities

3-9-1-f (fuel oil)
1402 gal
3-9-2-f (fuel oil)
1402 gal
3-12-2-f (waste oil)
86 gal
3-12-1-f (oily water)
86 gal
3-7-0-q (sewage collection)
352 gal
3-7-1-q (grey water)
52 gal
3-12-1-w (fresh water)
200 gal
3-12-2-w (fresh water)
200 gal

00000_1219_FLT

REC_00000_FLT_Commercial Project @ Contractor’ Facility (1212) 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 (COMDTINS) M10360.3 (series), Coatings and Color Manual Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2018, General Requirements Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2018, Welding and Allied Processes Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2018, Requirements for Preservation of Ship Structures Other References None

3. REQUIREMENTS

3.1 General. The Contractor shall conform to all requirements specified in SFLC Std Spec 0000 and in this item, as applicable, during the performance of this availability.

NOTE

The requirements of paragraph 3.1 (General) applies to all work under the scope of this contract, whether explicitly stated in work items or not, and to all other work subsequently authorized by changes, modifications, or extensions to the contract.

3.2 Contractor-provided fire watch personnel. The Contractor shall provide fire watch personnel and equipment.

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

3.3.1 Brand name approval. Ensure that all contractor-furnished coatings are in accordance with SFLC Std Spec 6310, Appendix C (Authorized Coatings for Use on Cutters and Boats).

3.3.2 Coating colors and system color schemes. Ensure that all colors and color coat/paint schemes are in accordance with COMDTINST M10360.3, Chapter 6 (Cutter and Boat Colors Exterior and Interior).

NOTE

Unless a waiver has been granted (in writing) by the KO, deviations from authorized coatings (listed in Appendix C of SFLC Std Spec 6310) and colors and color schemes (provided in Chapter 6 of COMDTINST M10360.3) are strictly prohibited.

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

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

3.5.3 Regulatory notifications. The Contractor shall 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 shall 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 shall 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 shall appoint in writing an Environmental Manager for the project, and shall be responsible for coordinating Contractor compliance with Federal, State, local, and station environmental requirements. The Environmental Manager shall 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 shall 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. None.

3.7 SFLC standard specification approved changes. The Contractor shall be aware that the following are approved changes to published SFLC 2018 Edition Standard Specifications and supersede published content:

None.

4. NOTES

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

QA-1 - QUALITY ASSURANCE INSPECTION FORM

(PRESERVATION CHECKLIST)

Vessel Name
Hull #
Work Item #
Work Item Title
Location of Work (incl. frame #’s)
Area (sqft)

CHECKPOINT 1 – COATING SYSTEM COMPLIANCE

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

CHECKPOINT 2 - PAINT STORAGE

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

CHECKPOINT 3 - AMBIENT CONDITIONS

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

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

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

CHECKPOINT 4 - PRE-SURFACE PREPARATION

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

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

CHECKPOINT 5 - SURFACE PREPARATION

Verify environmental conditions (see CHECKPOINT 3).

Ensure cleanliness of prepared surface is as per specification (i.e.: SSPC SP-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

QA-2 - QUALITY ASSURANCE INSPECTION FORM

(ENVIRONMENTAL READINGS)

Vessel Name
Hull #
Work Item #
Work Item Title

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 |

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

QA-3a - QUALITY ASSURANCE INSPECTION FORM

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

Vessel Name
Hull #
Work Item #
Work Item Title
Location of Work (incl. frame #’s)
Area (sqft)
SURFACE PREPARATION METHOD
PROFILE ACHIEVED (mils)
Min
Max
Mean
SSPC-SP-10/NACE No. 2
(
SSPC-SP WJ-1/NACE WJ-1
(
SSPC-SP WJ-2/NACE WJ-2
(
SSPC-SP WJ-3/NACE WJ-3
(
SSPC-SP WJ-4/NACE WJ-4
(
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

Place Surface Profile Replica Tape Here Place Surface Profile Replica Tape Here

Reading (mils):

Reading (mils):

Reading (mils):

Place Surface Profile

Place Surface Profile Replica Tape Here Place Surface Profile Replica Tape Here

Reading (mils):

Reading (mils):

Reading (mils):

Place Surface Profile

Place Surface Profile Replica Tape Here Place Surface Profile Replica Tape Here

Reading (mils):

Reading (mils):

Reading (mils):

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

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

QA-3b - QUALITY ASSURANCE INSPECTION FORM

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

Vessel Name
Hull #
Work Item #
Work Item Title
Location of Work (incl. frame #’s)
Area (sqft)
SURFACE PREPARATION METHOD
PROFILE ACHIEVED (mils)
Min
Max
Mean
SSPC-SP-10/NACE No. 2
(
SSPC-SP WJ-1/NACE WJ-1
(
SSPC-SP WJ-2/NACE WJ-2
(
SSPC-SP WJ-3/NACE WJ-3
(
SSPC-SP WJ-4/NACE WJ-4
(
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 Reading (mils)

Mean Reading (mils) IAW ASTM DD4417).

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

QA-4 - QUALITY ASSURANCE INSPECTION FORM

(SURFACE SOLUBLE SALT CONDUCTIVITY LOG)

Vessel Name
Hull #
Work Item #
Work Item Title
Location of Work (incl. frame #’s)
Area (sqft)

SOLUBLE SALT CONDUCTIVITY Measurements IAW SSPC-GUIDE 15.

Date
Test Locations
Conductivity (Microsiemens/CM)
Name of QP-1/NACE Inspector
Signature
Cert. #
Date / Time

QA-5 - QUALITY ASSURANCE DATA FORM

(COATING THICKNESS)

(Use one sheet for each sequence)

Vessel Name
Hull #
Work Item #
Work Item Title
Coating Mfg
Product Name
Batch #
Induction Time
Coating System Sequence (Primer/Touchup/3rd Coat, etc.)

Dry Film Thickness (DFT) Measurements IAW SSPC-PA 2.

SPOT
1
2
3
4
5
AVERAGE VALUE

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

Location (Frame Reference):

SPOT
1
2
3
4
5
Overall Avg. DFT
ADJUSTMENTS
Avg. BMR
Deviation
Before Adjustments
After Adjustments

Avg.

Location (Frame Reference):

SPOT
1
2
3
4
5
Overall Avg. DFT
ADJUSTMENTS
Avg. BMR
Deviation
Before Adjustments
After Adjustments

Avg.

Location (Frame Reference):

SPOT
1
2
3
4
5
Overall Avg. DFT
ADJUSTMENTS
Avg. BMR
Deviation
Before Adjustments
After Adjustments

Avg.

Application Method (Airless, Conventional Spray, Rolled)
Average DFT
Name of QP-1/NACE Inspector
Signature
Cert. #
Date / Time

10000_MWS_0519_87WPB

WORK ITEM 1: Structural Analysis, 3D Laser Scan, Perform

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to perform 3D laser scan of the cutter’s exterior hull shell, deck and dock floor locations/deformations and provide results in 3D CAD format.

1.2 Government-furnished property.

None

2. REFERENCES

Coast Guard Drawings Coast Guard Drawing 87 WPB 085-013, Rev B, Docking Plan Coast Guard Drawing 87 WPB 111-001, Rev H, Shell Expansion Coast Guard Drawing 87 WPB 601-001, Rev R, Outboard Profile & General Arrangements Coast Guard Publications Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2018, General Requirements Other References None

3. REQUIREMENTS

3.1 General.

3.1.1 CIR.

None.

3.1.2 Tech Rep. The Contractor shall provide the services of a Qualified Technical Representative who has the experience and knowledge to conduct a three-dimensional laser scan model identifying hull and deck deformations in 3D CAD format.

3.1.2.1 Ensure the Tech Rep has experience with the system/equipment stated above and demonstrated on their résumé.

3.1.2.2 Submit the name and résumé of the Tech Rep to the COR at the Arrival Conference

3.1.3 Protective measures. The Contractor shall furnish and install all protective coverings to seal off and protect all non-affected vessel's components, equipment, and spaces near the work area against contamination during the performance of work. Upon completion of work, the Contractor shall remove all installed protective measures, inspect for the presence of contamination, and return all contaminated equipment, components, and spaces to original condition of cleanliness.

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

NOTE

The USCG conducts structural analysis efforts requiring accurate measurement of the hull shape including both global and local deformations. Measurements of hull global and local deformations are evaluated relative to the design hull lines is a key part of this hull strength analysis and implications on shafting alignment.

3.2 Three dimensional laser scan. The Contractor shall perform a 3D laser scan of the cutter’s hull (sides, bottom and transom), shaft skegs (and shafting if in place) and the dock floor to obtain the 3D point cloud and provide a registered, reduced point cloud data set.

3.2.1 The 3D laser scan point cloud accuracy shall be within +/- 2 mm local scans and 5mm global scan alignment for the hull and deck surfaces. A point cloud reduction process shall be conducted to determine the shell plating deformations including an average of the deck nonskid covering to show the underlying plate deformations by averaging points over a 20 mm grid on the hull. The point cloud of hull appendages shall be reduced over a 1mm grid.

3.2.1.1 The Contractor shall convert the 3D laser scan (3D Point cloud) to a point cloud format that can be used in Rhino 3D version 5.0. The Contractor shall digitally remove staging interferences located around the hull of the Cutter.

3.2.1.2 The Contractor shall compare the measured 3D point cloud and meshed surfaces to the hull lines based NURBS surface developed by US Coast Guard SFLC to determine dimensional deviations from the lines based NURBS surface. The dimensional deviations shall be rendered in the Rhino 3D in 1mm increments and colors to show the dimensional gradients. The Contractor shall position the hull relative to the 3D hull surface in coordination with the US Coast Guard.

3.3 Report. The Contractor shall provide a neatly organized model using layers and color contour images of the surface comparisons. The Contractor shall provide the 3D point cloud in Rhino 3D 5.0 format files and deliver them in electronic format by ftp or mailed CDs to the USCG within 2 weeks after conducting the 3D Laser Scan.

3.3.1 The report shall include all photographs, illustrations, charts, graphs, tables, calculations, text, analyses, algorithms, conclusions and recommendation deliverables developed as a part of this project. The Coast Guard will review the report, and may provide feedback or conduct discussions with the Contractor prior to acceptance.

3.3.2 The report shall be delivered to USCG with a document cover letter to the following address:

Commanding Officer (SFLC-ESD-NAME) USCG Surface Forces Logistics Center (Mail Stop 25) 2401 Hawkins Point Road Baltimore, MD 21226-5000 Attn: Mr. Karl Stambaugh

3.3.3 Data rights. All data regardless of form or medium shall be the sole property of the US Coast Guard and shall not be released without the written consent of the US Coast Guard.

4. NOTES

This section is not applicable to this work item.

11000_FJL_0719_87WPB

WORK ITEM 2: 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 the underwater (u/w) body and freeboard by ultrasonic side scan method.

1.2 Government-furnished property.

None.

2. REFERENCES

Coast Guard Drawings Coast Guard Drawing 87 WPB 085-013, Rev B, Docking Plan Coast Guard Drawing 87 WPB 111-001, Rev H, Shell Expansion Coast Guard Drawing 87 WPB 111-050, Rev A, Updates to DWG 87-WPB-111-001 Exhaust Port Insert Plate Installation and Details Coast Guard Publications Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2018, General Requirements Other References American Society for Nondestructive Testing (ASNT) SNT-TC-1A, 2016, Recommended Practice for Personal Qualification and Certification in Nondestructive Testing

3. REQUIREMENTS

3.1 General.

3.1.1 CIR.

None.

3.1.2 Tech Rep.

Not applicable.

3.1.3 Protective measures. The Contractor shall furnish and install all protective coverings to seal off and protect all non-affected vessel's components, equipment, and spaces near the work area against contamination during the performance of work. Upon completion of work, the Contractor shall remove all installed protective measures, inspect for the presence of contamination, and return all contaminated equipment, components, and spaces to original condition of cleanliness.

3.1.4 Interferences. The Contractor shall handle all interferences in accordance with SFLC Std Spec 0000, paragraph 3.3.5 (Interferences). Known interferences include, but are not limited to the following:

· Hull zinc anode system

· Docking blocks

3.2 Work coordination and preparation. The Contractor shall plan all specified vessel work detailed in this specification package to ensure the side scan survey does not necessitate a work stoppage. The Contractor shall abide by the following guidance, to facilitate the ultrasonic survey:

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

· Prior to side-scan survey, inspect interior and bilge plating for the presence of bubbles of rusted metal. Break up and remove all rust bubbles to ensure accurate survey results.

· 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 hull surface inspection areas that are five feet above ground level.

· After completion of the hull survey, and authorized hull repairs, resume/complete freeboard and u/w body preservation process.

· 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 coating operations.

3.3 Side scan requirements and procedures. The Contractor shall ensure the following referring to Coast Guard Drawings 87 WPB 085-13, 87 WPB 111-001, and 87 WPB 111-050 as guidance during the performance of the tasks specified below.

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

· An ASNT 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 inspections.

3.3.2 Coast Guard notification.

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

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 shall be set to 0.5” x 0.5”

· Plates where scan data indicating wastage greater than or equal to 25% nominal plate thickness shall 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 shall be highlighted in “YELLOW”.

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

· Hand held UT readings shall be taken to verify bad metal areas found with the side scan equipment. All readings shall 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 shall be scanned with a hand-held meter at a resolution of 2” x 2”. Any repair areas found during the hand scan shall 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 shall 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 plating, but shall exclude 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, anodes, stern tubes, and docking blocks.

· Any areas blocked by immovable scaffolding or shipyard activity.

3.4 Side scan reports. The Contractor shall submit a CFR containing the final report within three working days after the side scan inspection is completed. A copy of all repair areas shall 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 prior to departing the job site. Ensure the reports include:

· Inspection overview.

· Data sheets for each plate with designated repair areas outlined in blue.

· Mosaic of scanned data overlaid on Coast Guard Drawing 87 WPB 111-001.

NOTE

Where hull repairs are required in the vicinity of the exhaust teardrops, use Coast Guard Drawing 87 WPB 111-050 for guidance on location of stainless steel hull inserts and when planning for plating renewal.

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 shall be compatible with standard USCG workstation operating software. Electronic files format shall be such that the CG has the capability to change the percent of wastage (format conditioning) per plate. Electronic files shall be capable of being opened using MS Word, MS Excel, or PDF software. Digital pictures shall be recorded in JPEG format.

3.5 Touch-up preservation. The Contractor shall prepare and coat all disturbed interior bilge surfaces to match existing adjacent surfaces in accordance with SFLC Std Spec 6310, paragraph 3.1.13 (Touch-ups and minor coating repairs.)

4. NOTES

This section is not applicable to this work item.

11000_FJL_0719_87WPB

WORK ITEM 3: Ultrasonic Thickness Measurements, Perform

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to perform up to 250 thickness measurements (UT shots) of hull plating and frames, by ultrasonic methods.

1.2 Government-furnished property.

None.

2. REFERENCES

Coast Guard Drawings Coast Guard Drawing 87 WPB 085-013, Rev B, Docking Plan Coast Guard Drawing 87 WPB 111-001, Rev H, Shell Expansion Coast Guard Drawing 87 WPB 111-050, Rev A, Updates to DWG 87-WPB-111-001 Exhaust Port Insert Plate Installation and Details Coast Guard Drawing 87 WPB 163-001, Rev H, Sea Chest Details Coast Guard Publications Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2018, General Requirements Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2018, Welding and Allied Processes Other References None

3. REQUIREMENTS

3.1 General.

3.1.1 CIR.

None.

3.1.2 Tech Rep.

Not applicable.

3.1.3 Protective measures. The Contractor shall furnish and install all protective coverings to seal off and protect all non-affected vessel's components, equipment, and spaces near the work area against contamination during the performance of work. Upon completion of work, the Contractor shall remove all installed protective measures, inspect for the presence of contamination, and return all contaminated equipment, components, and spaces to original condition of cleanliness.

3.1.4 Interferences. The Contractor shall handle all interferences in accordance with SFLC Std Spec 0000, paragraph 3.3.5 (Interferences). Known interferences include, but are not limited to the following:

· Sea chest grates

· Tight interior spaces

3.2 UT measurements. Using Coast Guard Drawings 87 WPB 085-013, 87 WPB 111-001, and 87 WPB 111-050 as guidance, the Contractor shall perform up to 250 UT measurements in locations designated by the Coast Guard Inspector in accordance with SFLC Std Spec 0740, Appendix C. Submit a CFR.

3.2.1 The Contractor shall conduct 50 of the 250 UT shots over the 1/4” sea chest plating in both sea chests beneath the sea chest grates as shown on Coast Guard Drawing 87 WPB 163-001.

3.2.2 The Contractor shall create a sketch to show all locations selected for measurement and record all measurements in Table 1 (UT Measurements Summary Sheet - Port/Stbd Shell) provided at the end of this item. Submit CFR itemizing all areas requiring repairs along with repair recommendations, including complete work scope proposal, for each area.

NOTE

Where hull repairs are required in the vicinity of the exhaust teardrops, use Coast Guard Drawing 87 WPB 111-050 for guidance on location of stainless steel hull inserts and when planning for plating renewal.

4. NOTES

This section is not applicable to this work item.

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

63130_0617_FLT

REC_63130_100Percent_FLT_87' WPB (ALL) (1019) WORK ITEM 4: U/W Body, Preserve (100%)

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to preserve U/W body surfaces.

NOTES

1. The purpose of the preservation tasks covered by this item is to completely remove all existing coatings and recoat the U/W body surfaces with a new coating system.

2. U/W body surfaces are as defined in 4.1 (Definitions) and exclude areas covered by docking blocks, unless the vessel is fleeted for the express purpose of preserving blocked areas.

1.2 Government-furnished property.

None.

2. REFERENCES

Coast Guard Drawings Coast Guard Drawing 87 WPB 583-001, Rev W, RIB Deployment Structure Coast Guard Drawing 87 WPB 601-001, Rev R, Outboard Profile & General Arrangements Coast Guard Drawing 87 WPB 602-001, Rev F, Visual ID…

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