47267_(MLB_47)_Specification_Pkg._Rev-0,_10_December_2017_.pdf

USCG 47267 (MLB 47)

SPECIFICATION FOR DRYDOCK REPAIRS

FY2018

Developed By: Tyler W Henson

(Rev-0, 10 December 2017)

USCG 47267 (MLB-47) DRYDOCK AVAILABILITY FY2018

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 ..................................................................................... ix Principal Characteristics...................................................................................................................... x General Requirements WORK ITEM 1: General Welding, Provide WORK ITEM 2: Ultrasonic Testing (U/W Body) Shots, Perform WORK ITEM 3: Hull Plating (U/W Body), Inspect WORK ITEM 4: Hull Plate, Renew WORK ITEM 5: Bulkhead Penetrations, Frame 5, Inspect WORK ITEM 6: Rub Rail, Remove, Inspect and Install WORK ITEM 7: Appendages (U/W), Leak Test WORK ITEM 8: Accessible Spaces, Inspect WORK ITEM 9: Tanks (Mp Fuel Service), Clean And Inspect WORK ITEM 10: Buoyancy Chamber(s), Clean and Inspect WORK ITEM 11: Mast, Inspect WORK ITEM 12: Main Diesel Engine, Remove and Install WORK ITEM 13: Main Diesel Engine, Align WORK ITEM 14: Propulsion Shaft, Remove, Inspect, and Install WORK ITEM 15: Water Lubricated Bearings, Renew WORK ITEM 16: Propellers, Remove, Inspect, and Reinstall WORK ITEM 17: Exhaust Mufflers, Clean and Inspect WORK ITEM 18: Standard Hoses, Renew WORK ITEM 19: Sea Valves, Renew WORK ITEM 20: Sea Strainers - Simplex (All Sizes), Clean and Inspect WORK ITEM 21: Diesel Tank(s), Refuel WORK ITEM 22: Fuel Root Valves, Renew WORK ITEM 23: Steering System, Inspect WORK ITEM 24: Rudder Assembly; Remove, Inspect and Reinstall WORK ITEM 25: U/W Body, Preserve (100%) WORK ITEM 26: Cathodic Protection / Zincs, Renew WORK ITEM 27: Marine Chemist Services, Provide WORK ITEM 28: Drydock WORK ITEM 29: Temporary Services, Provide WORK ITEM 30: Sea Trial Performance, Support, Provide WORK ITEM 31: Bilge Preservation, Auxiliary Space WORK ITEM 32: Sea Strainers - Duplex (All Sizes), Overhaul WORK ITEM 33: Cardan Shaft(s), Remove, Inspect and Reinstall 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 47B MLB 110-207, Rev E, Transverse BHD FR 8

Coast Guard Drawing 47B MLB 110-209, Rev C, Transverse BHD FR 10

Coast Guard Drawing 47B MLB 110-306, Rev H, Web Frame 9

Coast Guard Drawing 47B MLB 110-500, Rev H, Shell Plating

Coast Guard Drawing 47B MLB 150-090, Rev E, Aft Buoyancy Box

Coast Guard Drawing 47B MLB 171-010, Rev P, Mast

Coast Guard Drawing 47B MLB 201-010, Rev L, Machinery Arrangement

Coast Guard Drawing 47B MLB 313-001, Rev-, Standard Battery Connection Configuration

Coast Guard Drawing 47B MLB 505-020, Rev AA, Piping Arrangement in Hull

Coast Guard Drawing 47B MLB 505-020, Rev Y, Piping Arrangement in Hull (Composite & General Info)

Coast Guard Drawing 47B MLB 505-020, Rev Y, Piping Arrangement in Hull

Coast Guard Drawing 47B MLB 801-002, Rev -, Docking Plan

Coast Guard Drawing 47B-MLB 110-201, Rev D, Transom

Coast Guard Drawing 47B-MLB 110-202, Rev F, Transverse Bhd Fr 1

Coast Guard Drawing 47B-MLB 110-206, Rev F, Transverse Bhd Fr 5

Coast Guard Drawing 47B-MLB 110-208, Rev E, Fuel Tank

Coast Guard Drawing 47B-MLB 110-301, Rev D, Web Fr 2

Coast Guard Drawing 47B-MLB 110-302, Rev D, Web Fr 3

Coast Guard Drawing 47B-MLB 110-303, Rev C, Web Fr 4

Coast Guard Drawing 47B-MLB 110-400, Rev H, Keel & Longitudinals

Coast Guard Drawing 47B-MLB 110-500, Rev H, Shell Plating

Coast Guard Drawing 47B-MLB 161-010, Rev M, Shaft Struts and Barrels

Coast Guard Drawing 47B-MLB 167-010 Rev L, List of Hatches and Manholes

Coast Guard Drawing 47B-MLB 171-010, Rev P, Mast

Coast Guard Drawing 47B-MLB 201-010, Rev L, Machinery Arrangement

Coast Guard Drawing 47B-MLB 243-010, Rev U, Propulsion Shafting Bearings & Seals

Coast Guard Drawing 47B-MLB 243-010, Rev U, Propulsion Shafting Bearings and Seals

Coast Guard Drawing 47B-MLB 252-020, Rev H, Engine Remote Shutdown v (Rev-0)

Coast Guard Drawing 47B-MLB 259-020, Rev K, Engine Exhaust Arrangement

Coast Guard Drawing 47B-MLB 505-020, Rev Y, Piping Arrangement in

Coast Guard Drawing 47B-MLB 505-020, Rev Y, Piping Arrangement in Hull

Coast Guard Drawing 47B-MLB 505-020, Rev Y, Piping Arrangement in Hull

Coast Guard Drawing 47B-MLB 561-010, Rev J, Steering Gear & Controls

Coast Guard Drawing 47B-MLB 561-020, Rev E, Rudder Arrangement

Coast Guard Drawing 47B-MLB 562-010, Rev B, Rudder

Coast Guard Drawing 47B-MLB 562-010, Rev B, Rudder

Coast Guard Drawing 47B-MLB 611-020, Rev L, Foam Fender Arrangement

Coast Guard Drawing 47B-MLB 631-020, Rev K, Paint Schedule

Coast Guard Drawing 47B-MLB 633-010, Rev A, Cathodic Protection

Coast Guard Drawing 47B-MLB 635-010, Rev C, Hull Insulation

Coast Guard Drawing 47B-MLB 801-002, Rev -, Docking Plan

Coast Guard Drawing 47B-MLB 801-010, Rev N, Booklet of General Plans

COAST GUARD PUBLICATIONS

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

Coast Guard Technical Publication (TP) 3355, SWBS 086, Apr 2003, General Information Book, Section A

Coast Guard Technical publication (TP) 3355, SWBS 086, Apr 2003, General Information Book, Section

A, CH 6

Coast Guard Technical Publication (TP) 3358, SWBS 233, Jul 2003, Manufacturer’s Information Book – SWBS Group(s) 233

Coast Guard Technical Publication (TP) 3358, SWBS 233, Jul 2003, Manufacturer’s Information Book – SWBS Group(s) 233, Sections A-H

Coast Guard Technical Publication (TP) 3359, SWBS 241-541, Mar 2007, Manufacturer’s Information Book - SWBS Group(s) 241-541

Coast Guard Technical Publication (TP) 3359, SWBS 241-541, Mar 2007, Manufacturer’s Information Book - SWBS Group(s) 241-541, SWBS 243, Section C, Propulsion Shafting

Coast Guard Technical Publication (TP) 3359, SWBS 241-541, Mar 2007, Manufacturer’s Information Book - SWBS Group(s) 241-541, SWBS 243, Sections A, B, C, D, Propulsion Shafting

Coast Guard Technical Publication (TP) 3359, SWBS 241-541, Mar 2007, Manufacturer’s Information Book - SWBS Group(s) 241-541, SWBS 245, Section A, Propellers, MY-T4

Coast Guard Technical Publication (TP) 3359, SWBS 241-541, Mar 2007, Manufacturer’s Information Book - SWBS Group(s) 241-541, SWBS 259, Section A, Exhaust System

Coast Guard Technical Publication (TP) 3359, SWBS 241-541, Mar 2007, Manufacturer’s Information Book – SWBS Group(s) 241-541, SWBS 520, Sea Water Systems

Coast Guard Technical Publication (TP) 3360, SWBS 555-671, Sep 2012, Manufacturer's Instruction Book - SWBS Groups 555-671, SWBS 611, Section A, Hull Fittings

Coast Guard Technical Publication (TP) 3918A, SWBS 233, Jul 2003, DDEC III, Series 92, Service Manual - Sections 1 and 2

Coast Guard Technical Publication (TP) 3918C, SWBS 233, Jul 2003, DDEC III, Series 92, Service Manual - Sections 7 Thru 15

Coast Guard Technical publication (TP) 4934, SWBS 074, Sep 2014, Small Boat Diagrams for Hotwork vi (Rev-0)

Coast Guard Technical Publication (TP) 4934, SWBS 074, Sep 2014, Small Boat Diagrams for Hotwork

Coast Guard Technical Publications (TP) 3360, SWBS 555-671, Sep 2012, Manufacturer’s Instruction Book - SWBS Group(s) 555-671

Coast Guard Technical Publications (TP) 3360, SWBS 555-671, Sep 2012, Manufacturer’s Instruction Book - SWBS Group(s) 555-671, SWBS 561, Section A, Steering & Diving Control Systems

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

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General Requirements

Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2014, Welding and Allied Processes

Surface Forces Logistics Center Standard Specification 5000 (SFLC Std Spec 5000), 2014, Auxiliary Machine Systems

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

Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2014, Requirements for Preservation of Ship Structures

Surface Forces Logistics Center Standard Specification 8634 (SFLC Std Spec 8634), 2014, Drydocking

Surface Forces Logistics Center Standard Specification 8635 (SFLC Std Spec 8635), 2014, Temporary Services

OTHER REFERENCES

ASTM International (ASTM) B271, 1996, Standard Specification for Copper-Base Alloy Centrifugal Castings

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

ASTM International (ASTM) D4138, 2013, Standard Practices for Measurement of Dry Film Thickness of Protective Coating Systems by Destructive, Cross-Sectioning Means

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

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

ASTM International (ASTM) E797, 2005, Standard Practice for Measuring Thickness by Manual Ultrasonic Pulse-Echo Contact Method

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

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

International Standard Organization (ISO) 1940-1, Balance Quality Requirements of Rigid Rotors

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

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

MIL-PRF-16173, Rev E, Corrosion Preventive Compound, Solvent Cutback, Cold-Application

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

MIL-S-45180, 1998; Sealing Compound, Gasket, Hydrocarbon Fluid and Water Resistant vii (Rev-0)

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

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

The Society for Protective Coatings (SSPC) Surface Preparation Specification No.1 (SSPC-SP 1), 2015, Solvent Cleaning

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

The Society for Protective Coatings (SSPC)/NACE International (NACE) Joint Surface Preparation Standard SSPC-SP 10/NACE No.2, 2004, Near-White Blast Cleaning

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

The Society for Protective Coatings SSPC-SP 2, -; Hand Tool 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

DES CRIPTION

NSN/PN QTY ES TIMATED

COST

($/UNIT)

6 N Washer, Flat NSN: 5310-01-435-1037 108 ea.

11 N Mast Bushings NSN: 3120-01-025-6485 8 ea 1.00

14 N Shaft Seal (3-3/4”) PN: 02-212-334 2 ea. $465.00 15 N Upper Rudder

Bearing NSN: 3120-01-469-8793 2 ea $80.81

15 N Lower Rudder Bearing

NSN: 3120-01-469-8769 2 ea $203.17

15 N Shaft Bearing Strut Tube

NSN: 3120-01-366-0506 2 ea $219.16

15 N Shaft Bearing Stern Tube

NSN: 3120-01-365-9410 2 ea $107.77

19 N Main Engine R/W supply valve

NSN: 4820-01-544-1003

PN: S-135JW2PPPPP2-HSV

2 ea 989.00

19 N HVAC Suction Sea Valve

NSN: 4820-01-274-6687

PN: 70-106-01

1 ea 29.95

26 N Zinc, Barrel shape NSN: 5342-01-366-3891 6 ea. 47.58 26 N Zinc, Oblong shape NSN: 5340-01-381-0840 2 ea. 27.20

33 N **Seal, Shaft (Complete)

NSN: 2010-01-545-9932 2 ea 2,256.05

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

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

***Government-furnished property, which is to be supplied by either the vessel or the C4IT ServiceCenter ix (Rev-0)

CONSOLIDATED LIST OF CRITICAL INSPECTION ITEMS

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

Work Item

Title

2 Ultrasonic Testing (U/W Body) Shots, Perform

4 Hull Plate, Renew

6 Rub Rail, Remove, Inspect and Install

7 Appendages (U/W), Leak Test

14 Propulsion Shaft, Remove, Inspect, and Install

20 Sea Strainers - Simplex (All Sizes), Clean and Inspect

24 Rudder Assembly; Remove, Inspect and Reinstall

25 U/W Body, Preserve (100%)

33 Cardan Shaft(s), Remove, Inspect and Reinstall x (Rev-0)

PRINCIPAL CHARACTERISTICS

47' MLB, MOTOR LIFE BOAT

PHYS ICAL

Length, overall 47' 11" (W/O Rubrails) - 48' 11"

Length, waterline 43”

Beam, overall 14' (W/O Rubrails) - 15'

Depth 4' 6"

Full load displacement 40,000 lbs

Full load draft 4' 6"

Height of highest projection 18' 6" (fixed height) - 28' 4"

HULL

Hull/superstructure material 5456 Aluminum

Frame spacing

FR 0 to 8 30" - 31"

FR 8 to 10 33"

FR 10 to 18 30"

MACHINERY

Engine details (2) DD 6V92TA DDEC III, 435 SHP each @ 2100 RPM

Electrical system 24 Volt DC

Number of p ropellers 2

Number of b lades 4

Diameter 28"

Pitch 36"

Shaft- diameter x length (in) 2.50” x 159.0”

Shore tie voltage requirements 120 VAC (100A)

PERFORMANCE

Maximum speed at sea state 0 25 knots (2050-2200 RPM)

Cru ise speed at sea state 2 20 knots (1850 RPM)

Max id le speed 6 knots (600 RPM)

Fuel capacity (d iesel) 394 gal.

Range at cruise, sea state 0 200 NM

1 (Rev-0)

00000_0917_FLT

REC_00000_FLT_Boats @ Commercial Facility (0914)

General Requirements

1. SCOPE

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

1.2 Term interchangeability. The terms 'Contractor', 'CG Yard', 'NAVSTA EVERETT', 'shipyard', 'Base', and 'Coast Guard Industrial' are used interchangeably in this specification. Where the primary service provider is Coast Guard personnel, references to contractor and other noted descriptors within this specification or within drawings, publications, SFLC Standard Specifications or other commercial and military references are deemed the same as prime service provider.

2. REFERENCES

COAST GUARD DRAWINGS

None

COAST GUARD PUBLICATIONS

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

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General Requirements

Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2014, Welding and Allied Processes

Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2014, 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.

2 (Rev-0)

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

3.2 Fire watch requirements. The Contractor shall refer to 3.3.1.3 (Fire watch requirements) of SFLC Std Spec 0000, in accomplishing the following task:

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

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 NDI 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 (Rev-0)

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.

3.6.1 Coast Guard turn-over preparation. The Contractor shall be aware that, upon arrival, after haul out, and prior to departing the Contractor’s facility, the Coast Guard crew shall be allowed to accomplish various tasks in preparation for the turn-over of the boat to the Contractor. The following conditions apply to this paragraph:

3.6.1.1 The Coast Guard requires a maximum of three days at the beginning of the contract, and three days at the end to accomplish various tasks.

3.6.1.2 The Contractor may commence/continue work during these time frames.

<<APM Note: Paragraph 3.6.1.3 pertains to 47’ MLB only. For all other SBPL assets delete this paragraph.>>

3.6.1.3 Coast Guard personnel will disconnect the Detroit Diesel Electronic Control (DDEC) System and any other electronic equipment, as required to avoid damage to systems arising from hotwork on the vessel during the availability.

3.6.1.4 Coast Guard personnel will remove the transducers after initial haul-out and reinstall prior to re-floating the vessel.

3.6.1.5 The Unit will contact the servicing ESD or ESU to setup removal/installation of the transducer if Unit personnel are unable to accomplish this task.

3.7 SFLC standard specification approved changes. The Contractor shall be aware that the following are approved changes to published SFLC 2014 Edition Standard Specifications and supersede published content:

3.7.1 SFLC Standard Specification 6310, Requirements for Preservation of Ship Structures.

3.7.1.1 SFLC Std Spec 6310, page C-2, Section C1.5.1. Change from "lead-containing paint as 0.06%" to "lead-containing paint as 0.009%".

4 (Rev-0)

3.7.1.2 SFLC Std Spec 6310, page 4, Section 2 References, Group- Other References. Add “The Society for Protective Coatings (SSPC) Paint Application Guide No. 11, 2008, Protecting Edges, Crevices, and Irregular Steel Surfaces by Stripe Coating”

3.7.1.3 SFLC Std Spec 6310, page Appendix C-6, add "Hempel Hempadur Multi-Strength GF 35870" with FED- STD-595 color "Black/Red" under ANTI-ABRASION COATING, ICE BREAKING CAPABLE VESSELS, <235’.

3.7.1.4 Standard Spec 6310, page Appendix A-7, Under "UNDERWATER (U/W) BODY/BOOT-TOP", Add line Column 1: Option for U/W Body and Boot-Top, Steel Hulls, <154', in Salt Water. Column 2: Blank. Column 3:

SSPC-SP 10/NACE NO. 2 using grit conforming to MIL-A-22262 / (1.5-3.5) - or - SSPC-SP WJ-2(M)/NACE WJ-2(M). Columns 4 and 5: Same as "U/W Body and Boot-Top, Aluminum Hull, High Speed (>30 knots)".

3.7.1.5 SFLC Std Spec 6310, page Appendix C-8, Under "Epoxy/Primer/Mid-Coat", add line Column 2:

International Intergard 264. Column 3: Various. Under "Polysiloxane", add line Column 2: International Interfine

979. Column 3: Various.

3.7.2 SFLC Standard Specification 0000 General Requirements.

3.7.2.1 SFLC Std Spec 0000, paragraph 1.3 ‘Acronyms and term definitions’, page 5, “PCL (Paint Containing Lead)” definition replaced by, “Any paint or coating containing lead in excess of 0.009 percent by weight (1.0 mg/cm2 or 90 ppm). Lead Based Paint (LBP) is an interchangeable term with PCL.”

3.7.2.2 Change Std Spec 0000 paragraph 3.2.4.2.3(QP 1 inspector or tech rep duties) bullet, “Determine when applied coats have sufficiently cured for overcoating or for system service resumption (see paragraph

3.1.19 of SFLC Std Spec 6310 (Critical drying time requirements)).” to “Determine when applied coats have sufficiently cured for overcoating or for system service resumption (see paragraph 3.1.17 of SFLC Std Spec 6310 (Critical drying time requirements)).”

4. NOTES

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

5 (Rev-0)

QA-1 - QUALITY ASSURANCE INSPECTION FORM

(PRESERVATION CHECKLIST)

VESSEL NAME HULL # WORK ITEM # WORK ITEM TITLE

LOCATIO N O F WORK (INCL. FRAME #’S) AREA (SQ FT)

CHECKPOINT 1 – COATING SYSTEM CO MPLIANCE

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

CHECKPOINT 2 - PAINT STO RAGE

Ensure all coatings are kept at a temperature of 65 to 85°F at all t imes, 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 PREPARATIO N

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 PREPARATIO N

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 APPLICATIO N

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 APPLICATIO N

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 – TO P 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 INSPECTIO N

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 O F QP-1/NACE INSPECTO R SIGNATURE CERT. # DATE / TIME

6 (Rev-0)

QA-2 - QUALITY ASSURANCE INSPECTION FORM

(ENVIRONMENTAL READINGS)

Use one sheet for each activity. Record conditions every four hours from before surface preparation to application of final coating system coat.

DATE

TIME

ACTIVITY (SURFACE

PREPARATION, PRIMER COAT,

BARRIER COAT, TO P COAT,

ETC…)

LOCATIO N (FRAME &

DECK, RELATIO N TO

EQ UIPMENT, ETC.)

TEMPERATURE % REL.

HUMID-

ITY

DEW

PT.

SURFACE AMBIENT ΔT

| DP -

SURFACE |

7 (Rev-0)

QA-3a - QUALITY ASSURANCE INSPECTION FORM

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

SURFACE PREPARATION METHO D PRO FILE 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 Q A record. Maintain a separate log fo r 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-METHO D C) FO R ABOVE 15 READINGS:

8 (Rev-0)

QA-3b - QUALITY ASSURANCE INSPECTION FORM

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

SURFACE PREPARATION METHO D PRO FILE 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).

9 (Rev-0)

QA-4 - QUALITY ASSURANCE INSPECTION FORM

(SURFACE SOLUBLE SALT CONDUCTIVITY LOG)

SOLUBLE SALT CONDUCTIVITY Measurements IAW SSPC -GUIDE 15.

DATE TEST LOCATIO NS CONDUCTIVITY (MICROSIEMENS/CM)

10 (Rev-0)

QA-5 - QUALITY ASSURANCE DATA FORM

(COATING THICKNESS)

(Use one sheet for each sequence)

COATING MFG PRODUCT NAME

BATCH

INDUCTION

TIME

COATING SYSTEM SEQUENCE

(PRIMER/TO UCHUP/3RD COAT, ETC.)

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

SPO T 1 2 3 4 5

AVERAGE

VALUE

*BASE METAL READING

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

LOCATIO N (FRAME REFERENCE):

SPO T 1 2 3 4 5 OVERALL AVG. DFT ADJUSTMENTS

1 AVG. BMR DEVIATIO N

3 BEFORE ADJUSTMENTS AFTER ADJUSTMENTS

AVG.

1 AVG. BMR DEVIATIO N

1 AVG. BMR DEVIATIO N

APPLICATIO N METHO D (AIRLESS, CONVENTIO NAL SPRAY,

RO LLED)

AVERAGE DFT

11 (Rev-0)

07400_AKP_1114_BOAT_FLT

WORK ITEM 1: General Welding, Provide

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to provide general welding. Please see section 3.1 for scope of work

1.2 Government-furnished property.

None.

2. REFERENCES

COAST GUARD DRAWINGS

None

COAST GUARD PUBLICATIONS

Coast Guard Technical Publication (TP) 4934, SWBS 074, Sep 2014, Small Boat Diagrams for Hotwork

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General Requirements

Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2014, Welding and Allied Processes

Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2014, Requirements for Preservation of Ship Structures

OTHER REFERENCES

None

3. REQUIREMENTS

3.1 General.

3.1.1 CIR.

None.

3.1.2 Tech Rep.

12 (Rev-0)

Not applicable.

3.1.3 Protective measures. The Contractor 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).

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

3.3 Bidding. The Contractor shall ensure for bidding purposes this specification will be broke down by the following:

One linear foot of welding/brazing.

Four square inches of clad/overlay welding.

One hour of fabrication.

One square foot of plate renewal.

Aux Space: Clad weld 20 deep pits

Tow Bit: Crop and renew deck approx 120” around tow bit

Anchor Locker: Clad Weld approx 25 deep pits

Ladder (02): fabricate external ladders to bridge

Line Locker: Clad weld approx 15 deep pits.

Hand Rail Port FWD: Renew/fabricate new handrail and stancions from the deck up.

Hand Rail Stdb FWD: Renew/fabricate new handrail and stancions from the deck up.

Visor: clad weld approx 18 deep pits. Possibly grind and re-weld visor.

Lazarette vent renew (unit has GFP)

Crop and Renew Lazarette Vent flange.

TABLE 1 – PLATE TYPE

STEEL PLATE ALUMINUM PLATE

THICKNESS WEIGHT

PER

SQFT.

TYPE/GRADE THICKNESS WEIGHT

PER

SQFT

TYPE/ALLOY

3/16 (.1875) 7.66 lb

1/4 (.250) 10.21 lb 1/4 (.250) 3.53 lb

5/16 (.3125) 12.76 lb 5/16 (.3125) 4.41 lb

3/8 (.375) 15.31 lb 3/8 (.375) 5.29 lb

1/2 (.500) 20.42 lb 1/2 (.500) 7.06 lb

13 (Rev-0)

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

4. NOTES

This section is not applicable to this work item.

14 (Rev-0)

11000_RDW_0414_47MLB

WORK ITEM 2: Ultrasonic Testing (U/W Body) Shots, Perform

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to take 70 UT shots at pre-determined locations designated by Figure 1 and Figure 2. Coast Guard has the right to ask contractor for 30 additional UT shots at the Coast Guard Inspectors request.

1.2 Government-furnished property.

None.

2. REFERENCES

COAST GUARD DRAWINGS

Coast Guard Drawing 47B-MLB 110-201, Rev D, Transom

Coast Guard Drawing 47B-MLB 110-500, Rev H, Shell Plating

COAST GUARD PUBLICATIONS

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General Requirements

Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2014, Welding and Allied Processes

OTHER REFERENCES

ASTM International (ASTM) E797, 2005, Standard Practice for Measuring Thickness by Manual Ultrasonic Pulse-Echo Contact Method

3. REQUIREMENTS

3.1 General.

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

3.2 (UT measurements)

15 (Rev-0)

3.1.3 Protective measures. The Contractor shall furnish and install suitable covering to seal off and protect all non-affected surfaces/equipment and spaces in the vicinity of the work area against contamination during the performance of work. Upon completion of work, remove protective material and inspect for the presence of contamination. Clean all equipment and spaces, contaminated due to improper protection, 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).

3.2 UT measurements. The Contractor shall perform a total of up to 100 UT measurements of U/W hull surfaces, in locations designated by figures 1, 2 and the Coast Guard Inspector, using Coast Guard Drawings 47B-MLB 110-500 and 47B-MLB 110-201 for guidance, in accordance with SFLC Std Spec 0740, Appendix C. Record all measurements on a copy of figure 3 and use a copy of figure 4 (if needed) to show all additional locations selected for measurement. Submit a CIR, to also include the marked up figures.

4. NOTES

4.1 Coast Guard Personnel. Coast Guard Personnel will operate all vessel equipment and machinery.

16 (Rev-0)

FIGURE 1 - STANDARD UT TESTING LOCATIONS (PORT & STARBOARD)

17 (Rev-0)

FIGURE 2 – S TANDARD UT TES TING LOCATIONS (TRANSOM)

18 (Rev-0)

19 (Rev-0)

FIGURE 3 – S TANDARD U/W BODY PLATING MEAS UREMENTS TABLE

20 (Rev-0)

FIGURE 4 - ADDITIONAL U/W BODY PLATING MEAS UREMENTS TABLE

21 (Rev-0)

11000_1016_FLT

REC_11000_UWHIB_FLT_47' MLB (ALL) (1213)

WORK ITEM 3: Hull Plating (U/W Body), Inspect

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to inspect/survey the vessel’s Under Water (U/W) hull plating, including U/W appendages and coating system.

1.2 Government-furnished property.

None.

2. REFERENCES

COAST GUARD DRAWINGS

Coast Guard Drawing 47B-MLB 110-500, Rev H, Shell Plating

Coast Guard Drawing 47B-MLB 631-020, Rev K, Paint Schedule

Coast Guard Drawing 47B-MLB 801-002, Rev -, Docking Plan

COAST GUARD PUBLICATIONS

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General Requirements

OTHER REFERENCES

ASTM International (ASTM) D4138, 2013, Standard Practices for Measurement of Dry Film Thickness of Protective Coating Systems by Destructive, Cross-Sectioning Means

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

3. REQUIREMENTS

3.1 General.

3.1.1 CIR.

22 (Rev-0)

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).

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

A hull repair supervisor and a marker.

Temporary staging and other necessary equipment, as applicable, for ensuring safe access to all areas of the U/W hull.

NOTES

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

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

3.2.1 Hull plating. Inspect the condition of the hull plating (including thruster tunnel plating, as applicable), for the presence of marine growth, deformation, and any evidence of major corrosion or electrolytic action.

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

3.2.2 Sea chests and all other cooling system intake components. Inspect all sea chests, sea beam arrays, tunnels, hull openings, and grates for general appearance, loose, damaged, or missing grates, loose or missing fasteners, condition of sea strainers and lockwire on bolts, marine growth on grating slots, and any obstructions in the openings that might prevent proper suction and discharge of water.

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

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

23 (Rev-0)

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

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

3.2.6.1 Visually inspect all zinc anodes; check the soundness of mounting strap and stud welds, missing fasteners, and percentage of remaining material.

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

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

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

4. NOTES

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

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

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

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

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

24 (Rev-0)

11001_AKP_0314_47279

WORK ITEM 4: Hull Plate, Renew

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to crop out and renew hull, deck, & bulkhead plating in the following locations: .

Buoy Chamber: Crop and renew 240”sq PORT buoy chamber

Buoy Chamber: Crop and renew 860”sq PORT buoy bulkhead

Buoy Chamber: Crop and renew 860”sq STBD buoy chamber

Buoy Chamber: Crop and renew 120”sq DECK buoy chamber

Centerline Bilge: Crop and renew approx 1284”sq Frame 1-4

Anchor Locker: Crop and renew 6”x8” section

Reduction Gear: Crop and renew approx 1420”sq under PORT red gear

Reduction Gear: Crop and renew approx 1200”sq under STBD red gear

1.2 Government-furnished property.

2. REFERENCES

COAST GUARD DRAWINGS

Coast Guard Drawing 47B-MLB 110-202, Rev F, Transverse Bhd Fr 1

Coast Guard Drawing 47B-MLB 110-301, Rev D, Web Fr 2

Coast Guard Drawing 47B-MLB 110-302, Rev D, Web Fr 3

Coast Guard Drawing 47B-MLB 110-303, Rev C, Web Fr 4

Coast Guard Drawing 47B-MLB 110-400, Rev H, Keel & Longitudinals

Coast Guard Drawing 47B-MLB 110-500, Rev H, Shell Plating

Coast Guard Drawing 47B-MLB 201-010, Rev L, Machinery Arrangement

COAST GUARD PUBLICATIONS

Coast Guard Technical publication (TP) 3355, SWBS 086, Apr 2003, General Information Book, Section A, CH 6

25 (Rev-0)

Coast Guard Technical publication (TP) 4934, SWBS 074, Sep 2014, Small Boat Diagrams for Hotwork

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General Requirements

Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2014, Welding and Allied Processes

Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2014, Requirements for Preservation of Ship Structures

OTHER REFERENCES

The Society for Protective Coatings (SSPC)/NACE International (NACE) Joint Surface Preparation Standard SSPC-SP 10/NACE No.2, 2004, Near-White Blast Cleaning

3. REQUIREMENTS

3.1 General.

3.1.1 CIR.

None.

3.1.2 Tech Rep.

Not applicable.

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

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

Bilge pumps ( Engine room and lazarette)

Fuel supply lines

Fuel return lines

Primary fuel filters

3.1.5 Removal and weld plan. Prior to any removals and welding the Contractor shall submit to the COTR a removal and weld plan that will minimize any hull structural fluctuation.

3.2 Hull inspection and repair. The Contractor shall crop out and renew hull plating from approximately four inches aft of frame one, to approximately four inches aft of frame four and

26 (Rev-0) outboard approximately four inches from the keel, port and starboard. Refer to applicable Coast Guard Drawings in Section 2 for guidance and details.

3.2.1 Initial measurements. The Contractor shall conduct initial waterborne, shaft alignment readings as listed in Table 1. Record and retain measurements for comparison after structural work is completed.

TABLE 1- SHAFT ALIGNMENT READINGS

READING CORRECT

READING

ACTUAL

READING

Angular Gearbox to Propulsion Output Flange

Misalignment

Less Than 0.004 inches

Parallel Gearbox to Propulsion Output Flange

Misalignment

Less Than 0.004 inches

Carden Shaft Angle Between Engine Coupling and

Gearbox Coupling

Less Than 7 Degrees

Max Difference Between Angles at Carden Shaft Ends Less Than 0.2 Degrees

3.2.2 Ultrasonic thickness (UT) measurement. The Contractor shall take a total of 100 UT measurements of the hull plating in locations designated by the Coast Guard Inspector, in accordance with SFLC Std Spec 0740. Perform a UT inspection of the affected plating beyond the areas described in paragraph 3.2 to determine the boundary of sound material. Chalk out the boundary of the corroded plating where the remaining thicknesses are less than 75% of the original thickness as shown on Coast Guard Drawing 47B-MLB 110-500. Submit a CFR.

3.2.2.1 The report shall include the following information for each test point:

Location

Original metal thickness

Measured metal thickness

Percent deterioration (calculation is based on the original metal thickness)

3.2.3 Pitting corrosion measurement. The Contractor shall take a total of 30 pitting measurements of the hull plating, outside the designated cut area, at locations designated by the Coast Guard Inspector in accordance…