HSCG85-12-R-P30C10 Buckthorn Specification Rev0.doc

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CGC BUCKTHORN (WLI 642) DRYDOCKING AND REPAIRS
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HSCG85-12-R-P30C10
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USCGC BUCKTHORN (WLI-100) DRYDOCK AVAILABILITY 2012

USCGC BUCKTHORN (WLI 642)

100 FOOT INLAND BUOY TENDER

SPECIFICATION FOR DRYDOCK REPAIRS

Developed By: Miguel K Augustin (Rev-0, 27 February 2012)

TABLE OF CONTENTS

iiiRevisions Record ivConsolidated List of References viiConsolidated List of Government-furnished Property viiiConsolidated List of Critical Inspection Items ixPrincipal Characteristics - Tender

1General Requirements

12WORK ITEM 1: Hull Plating (U/W Body), Ultrasonic Testing

15WORK ITEM 2: Propulsion Shaft Bearings (External) , Check Clearances

17WORK ITEM 3: Fathometer Transducer , Renew - Tender

20WORK ITEM 4: Sea Strainers - Duplex (All Sizes), Overhaul

23WORK ITEM 5: Grey Water Holding Tanks , Clean and Inspect

26WORK ITEM 6: Sewage Holding Tanks , Clean and Inspect

29WORK ITEM 7: Tanks ( Grey Water Holding ) , Preserve “ 100% ”

31WORK ITEM 8: Tanks (Grey Water Holding), Preserve “Partial ”

34WORK ITEM 9: Tanks ( Sewage Holding ) , Preserve “ 100% ”

37WORK ITEM 10: Tanks ( Sewage Holding ) , Preserve “ Partial ”

39WORK ITEM 11: U/W Body, Preserve “100%”

42WORK ITEM 12: U/W Body, Preserve “Partial – Condition A ”

46WORK ITEM 13: U/W Body, Preserve “Partial - Condition B”

50WORK ITEM 14: Hull Plating Freeboard, Preserve “ 100% ”

53WORK ITEM 15: Hull Plating , Freeboard ; Preserve ( “ Partial ” )

57WORK ITEM 16: Superstructure, Preserve “100%” - Tender

60WORK ITEM 17: Cathodic Protection / Zincs, Renew

63WORK ITEM 18: Drydocking

66WORK ITEM 19: Temporary Services, Provide

70WORK ITEM 20: Compressed Air Receivers (All) , Clean, Inspect , and Hydro - Tender

73WORK ITEM 21: Tanks (Ballast), Preserve “ 100% ”

76WORK ITEM 22: Appendages (U/W), Leak Test

79WORK ITEM 23: Propulsion Shaft Rope Guards , Inspect and Repair

81WORK ITEM 24: Appendages (U/W) - Internal, Preserve

83WORK ITEM 25: Chain Stopper Inspect and Test

85WORK ITEM 26: Hull Plate Rene w

87WORK ITEM 27: Rudder Stock Bearings, Check Clearances

89WORK ITEM 28: Propulsion Shaft Packing, Renew

91WORK ITEM 29: Propeller , Remove, Inspect, and Reinstall

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 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 – as follows:

· MIL/DOD/CID Specifications: http://www.assistdocs.com/search/search_basic.cfm

· Commandant Instruction Manuals: http://www.uscg.mil/directives/default.asp

· Public Laws, Code of Federal Regulations, U.S Codes, and other Federal Government laws:: www.gpoaccess.gov The Government is aware of the following internet web links where contractors may procure commercial specifications:

· American Welding Society (AWS): http://www.awspubs.com/index.php

· ANSI, ASTM, IEEEE, NFPA, ASME, SAE Standards: http://www.techstreet.com/

· NFPA: http://www.nfpa.org

· SSPC Standards and pictorial guides: http://shopping.netsuite.com/sspcmarketplace

COAST GUARD DRAWINGS

A-Team Note: For vessels going to the Coast Guard Yard, the Yard may submit an alternate plan that accounts for specific CG Yard facility characteristics. However, the drawing above does not need to be changed in the specification. DELETE THIS NOTE BEFORE RELEASE OF REV 0.

Coast Guard Drawing ___________

Coast Guard Drawing _________________

Coast Guard Drawing 180-TE 1205-1, Rev-; Zinc Hull Protectors

Coast Guard Drawing 642 WAGL 0103-3, Rev I, Arrangement of Decks

Coast Guard Drawing 642 WAGL 0103-4, Rev F, Booklet of General Plans

Coast Guard Drawing 642 WAGL 0103-4, Rev F, Booklet Of General Plans

Coast Guard Drawing 642 WAGL 0103-4, Rev F, Booklets of General Plans

Coast Guard Drawing 642 WAGL 0700-001, Rev D, Docking Plan

Coast Guard Drawing 642 WAGL 1101-001, Rev L, Shell Expansion

Coast Guard Drawing 642 WAGL 1103-002, Rev C, Skeg

Coast Guard Drawing 642 WAGL 2200-001, Rev D, Steering Gear Arrgt & Dets

Coast Guard Drawing 642 WAGL 2200-002, Rev E, Rudders & Stocks

Coast Guard Drawing 642 WAGL 4301-001, Rev D, Shafting & Bearings

Coast Guard Drawing 642 WAGL 4301-001, Rev F, Shafting & Bearings

Coast Guard Drawing 642 WAGL 4301-002, Rev-, Propulsion Shaft Alignment

Coast Guard Drawing 642 WAGL 4301-1, Rev D, Shafting & Bearings

Coast Guard Drawing 642 WAGL 4400-1, Rev A, Buckthorn Propeller 44” Dia. X 37” Pitch, 3 Blade RH & LH

Coast Guard Drawing 642 WAGL 700-001, Rev E, Docking Plan

Coast Guard Drawing 642 WAGL-700-001, Rev D Docking Plan (642)

Coast Guard Drawing 642-WAGL 103-4, Rev F, Booklet of Plans

Coast Guard Drawing 642-WAGL 1101-1, Rev L, Shell Expansion

Coast Guard Drawing 642-WAGL 1901-1, Rev B, Painting Schedule

Coast Guard Drawing 642-WAGL 2605-1, Rev B-, Chain Stoppers

Coast Guard Drawing 642-WAGL 3901-1, Rev E, Hull Insulation Schedule

Coast Guard Drawing 642-WAGL 4301-3, Rev -, Shafting & Bearings (Supersedes 642-Wagl-4301-001)

Coast Guard Drawing FL 2804-13, Rev G, Visual ID Kit Sched

Coast Guard Drawing FL 2804-15, Rev-, Draft Figs

Coast Guard Drawing FL 6713-201, Rev B, CRP-V850 Transducer (B-14) Adapter Assembly

Coast Guard Drawing xxxx

Coast Guard Fleet Drawing FL 2804-11, Rev D, Visual Id Numeral & Letter for Ships

Coast Guard Fleet Drawing FL 2804-11, Rev D, Visual ID Numeral & Letter for Ships

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

Coast Guard Fleet Drawing FL 2804-13, Rev G, Visual Id Kit Sched

Coast Guard Fleet Drawing FL 2804-15, Rev-, Draft Figs

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

COAST GUARD PUBLICATIONS

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

Surface Forces Logistics Center Standard Specification (SFLC Std Spec) 0740, Jan 2009, Welding and Allied Processes

Surface Forces Logistics Center Standard Specification (SFLC Std Spec) 0000, Jan 2009, General Requirements

Surface Forces Logistics Center Standard Specification 8634 (SFLC Std Spec 8634), Jan 2009, Drydocking

Surface Forces Logistics Center Standard Specification 8635 (SFLC Std Spec 8635), Jan 2009, Provide Temporary Services

Surface Forces Logistics Center Standard Specification 8636 (SFLC Std Spec 8636), Jan 2009, Temporary Hull Accesses

OTHER REFERENCES

ASTM International (ASTM) D 4138, 2007, Standard Practices for Measurement of Dry Film Thickness of Protective Coating Systems by Destructive, Cross-Sectioning Means

ASTM International (ASTM) D1330, 2004, Standard Specification for Rubber Sheet Gaskets

ASTM International (ASTM) D4417, 2003, Standard Test Methods for Field Measurement of Surface Profile of Blast Cleaned Steel

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

Code of Federal Regulations (CFR) Title 33 CFR, 2008, Navigation and Navigable Waters

Code of Federal Regulations (CFR) Title 40, Chapter I, 2008, Environmental Protection Agency

Code of Federal Regulations (CFR) Title 49, Chapter I, 2008, Pipeline and Hazardous Materials Safety Administration, Department Of Transportation

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

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

Federal Standard (FED-STD) 595, 2008, Colors Used In Government Procurement

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

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

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

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

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

MIL-PRF-16173, Sep 2006, Corrosion Prevention Compound, Solvent Cut-Back, Cold-Application

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

Raytheon CRP-V850 Color Echosounder, 2nd Edition, Mar 1993, Operation Manual

Society of Automotive Engineers (SAE) Aerospace Material Specification (AMS) G-6032, 1999, 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.11 (SSPC-SP 11), 2004, Power Tool Cleaning to Bare Metal

The Society for Protective Coatings (SSPC) VIS 1, 2004, Guide and Reference Photographs for Steel Surfaces Prepared by Dry Abrasive Blast Cleaning

The Society for Protective Coatings (SSPC)/NACE International (NACE) Joint Surface Preparation Standard SSPC-SP 10/NACE No.2, 2007, Near-White Blast Cleaning

The Society for Protective Coatings (SSPC)/NACE International (NACE) Joint Surface Preparation Standard SSPC-SP 12/NACE No.5, 2007, Surface Preparation and Cleaning of Steel & Other Hard Materials by High and Ultrahigh Pressure Water Jetting

The Society for Protective Coatings (SSPC)/NACE International (NACE) Joint Surface Preparation Standard SSPC-SP 7/NACE No.4, 2007, Brush-Off Blast Cleaning

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)/NACE-International (NACE) Joint Surface Preparation Standard SSPC-SP 12/NACE No. SSPC-SP 12/NACE No.5, Surface Preparation and Cleaning of Steel & Other Hard Materials by High and Ultrahigh Pressure Water Jetting Prior to Recoating

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)

3
N
***Fathometer Transducer, Shallow Water, 50-200 Khz
NSN: 5845-01-518-7245
1 ea.
552.61
18
Y
*Transducer Cover Plate
N/A
1 ea.
50.00

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

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

***Government-furnished property, which is to be supplied by either the vessel or the C4IT ServiceCenter

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_STD, paragraph 3.2.6.5 (Inspection report particulars)):

Work Item Title

1
Hull Plating (U/W Body), Ultrasonic Testing
2
Propulsion Shaft Bearings (External) , Check Clearances
22
Appendages (U/W), Leak Test
24
Appendages (U/W) - Internal, Preserve
25
Chain Stopper Inspect and Test
27
Rudder Stock Bearings, Check Clearances

PC_100_WLI_0909

Principal Characteristics - Tender 100’ WLI “Buckthorn” Inland Buoy Tender

Physical Characteristics

Length Overall
100' 0"
Depth
7' 8"
Maximum Beam
24' 0"
Frame Spacing
1' 0"
Full Load Draft
4' 4"
Full Load Displacement
200 long tons

Machinery Characteristics

Number of Propellers
2
Number of Blades
3
Diameter
44"
Pitch
37"
Shaft RPM
550

This page was left blank intentionally. Do not delete.

00000_PWB_0811_FLT

REC_0000_FLT_ Commercial Project @ Contractor’ Facility (0211) General Requirements

1. SCOPE

1.1 Intent. This item describes the general requirements to be followed by the Contractor while conducting this availability.

2. REFERENCES

Coast Guard Drawings None.

Coast Guard Publications Coast Guard Commandant Instruction (COMDTINST) M10360.3C, Change 1, Jun 2006, Coatings and Color Manual Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), Jan 2009, General Requirements Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), Jan 2009, Welding and Allied Processes Other References ASTM International (ASTM) D4417, 2003, Standard Test Methods for Field Measurement of Surface Profile of Blast Cleaned Steel Commercial Item Description (CID) A-A-59316, Nov 2003, Abrasive Materials for Blasting Code of Federal Regulations (CFR) Title 33 CFR, 2008, Navigation and Navigable Waters Code of Federal Regulations (CFR) Title 40, Chapter I, 2008, Environmental Protection Agency Code of Federal Regulations (CFR) Title 49, Chapter I, 2008, Pipeline and Hazardous Materials Safety Administration, Department Of Transportation MIL-A-22262, Mar 1996, Abrasive Blasting Media Ship Hull Blast Cleaning NAVSEA Technical Publication T9074-AD-GIB-010/1688, (TP 1688), May 1997, Requirements for Fabrication, Welding, and Inspection of Submarine Structure The Society for Protective Coatings (SSPC) VIS 1, 2004, Guide and Reference Photographs for Steel Surfaces Prepared by Dry Abrasive Blast Cleaning

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 also to all other work subsequently authorized by changes, modifications, or extensions to the contract.

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 portable fire extinguishers for Coast Guard fire watch personnel. Coast Guard fire watch is in lieu of contractor personnel during the hours of 0800-1600, Monday through Friday, and limited to two Coast Guard fire watch personnel.

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

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

NOTE

NAVSEA approval is NOT required for welding procedures submitted but the procedures must be reviewed and shown to satisfy the requirements set forth in NAVSEA TP 1688, by a welding regulatory agency. The requirements for welding Weldox 900 shall be considered the same as those for welding HY-130

3.4 HW disposal. The Contractor is considered as the generator of all contract-generated hazardous wastes and shall use its facility’s EPA generator ID number for management, transportation, and disposal of said hazardous wastes. Ensure the following:

3.4.1 Contractor’s hazardous waste handlers shall comply with applicable requirements of 40 CFR 262.

3.4.2 All contract generated hazardous wastes shall be packaged in 49 CFR-compliant containers.

3.4.3 The designated wastes shall be disposed of at a state or Federally-approved and permitted HW TSDF.

3.4.4 Name of destination TSDF shall be submitted to the KO at the Arrival Conference.

3.5 Pre-surface preparation test coupon. In order to ensure production of required surface profile, the Contractor shall accomplish the following tasks, whenever abrasive-blasting is required in a work item that is deemed a ”critical-coated’ surface:

3.5.1 Coupon material and test set-up particulars.

3.5.1.1 Conduct a performance test on all abrasive blasting operations on a Contractor- provided test coupon, prior to starting abrasive blasting operations on the vessel. Ensure the following:

· The coupon shall be a new metal plate, of the same metal type and material properties as the vessel area to be blasted - steel or aluminum plate, as applicable, and shall have no existing anchor profile - other than the surface irregularities from the manufacturing process.

· The test coupon shall be flat, with nothing welded to the side used for the anchor profile test, no thinner than a 1/8-inch plate and measuring no smaller than 1-foot by 1-foot.

· For steel substrates, the coupon shall have the mill scale intact, and be in a Rust Grade "A" condition, in accordance with SSPC-VIS 1.

· The test coupon shall be affixed so as to not permit excessive movement during the performance test, but shall not be affixed to the vessel.

3.5.1.2 Ensure that the abrasive-blasting operation for the test coupon is conducted with the identical setup and parameters that will be used blasting the designated vessel surfaces – including, but not limited to:

· The abrasive media type and media size selected to achieve the anchor profile range, as specified in the applicable work items.

· Nozzle size and type (straight bore, high velocity nozzle, angle nozzle...).

· Delivery rate and pressure settings.

3.5.1.3 Blast a one-square foot area on one side of the test coupon to the abrasive surface preparation standard specified in the work item, and perform an anchor profile test of the blasted surface in accordance with ASTM D4417, Method B or C. Notify the COTR in advance of the abrasive blasting operation test, to permit the witnessing of the test by the COTR. Submit a CFR documenting the results of the abrasive blasting operation test. The CFR shall include at a minimum, the following:

· Area of the vessel for which the verified setup will be used to abrasive blast.

· The selected abrasive media type and size.

· The nozzle size and type.

· The delivery rate and pressure.

· The test coupon starting properties (material type and surface conditions).

· The resultant anchor profile readings from the test (a minimum of 3 locations, separated by a minimum of 2 inches shall be recorded).

NOTES

1. A performance test of the abrasive blasting operations on a test coupon and measuring the resultant anchor profile prior to performing the abrasive blasting operation on the cutter is required. The test coupon will be used to evaluate the anchor profile produced by the equipment setup and selected abrasive media.

2. The reverse side of the test coupon may be used for the subsequent test, provided that the conditions in paragraph 3.5.1 (Coupon material and test set-up particulars) are met.

3. Ultra high pressure water jetting does not create an anchor profile and is exempt from the anchor profile test coupon check.

3.5.1.4 Repeat the abrasive blasting operation test in the following instances:

· The equipment setup, that was evaluated during the test coupon abrasive blasting performance test in paragraph 3.5.1 (Coupon material and test set-up particulars), has changed.

· The resultant anchor profile readings observed on the vessel are outside the specified anchor profile range.

· Media is changed from MIL-A-22262 to CID A-A-59316 or vice versa.

· The supplier of the abrasive blasting media changes, regardless if the new source for the media has the same specifications.

· When Directed by the COTR.

CAUTION!

Ensure that blast media from the performance test does not strike the vessel during the test.

3.6 Interim changes to SFLC Std Spec 0000. The Contractor shall be aware of the following interim changes to the SFLC Std Spec 0000:

3.6.1 Contents of paragraph 3.3.2.1.1 (Water depth) have been revised to read as follows:

“3.3.2.1.1 Water depth. Ensure that water depth is sufficient at the pier to allow the vessel's lowest underwater appendage to clear the bottom by at least two feet at:

· Ordinary low water mark on non-tidal rivers.

· At all tide conditions predicted during the availability for tidal rivers and other navigable waterways (Bay, Lake, etc.).”

3.6.2 Paragraph 3.2.11.1 (Sanitary facilities for vessel-personnel – due to disruption of grey water system) has been revised as follows:

“3.2.11.1 Sanitary facilities for vessel-personnel – due to disruption of grey water and sewage systems. When the shipboard grey water and sewage systems are disrupted due to repairs required by contract work, the Contractor shall provide vessel-personnel with a sanitary facility, within a five minute walking distance from the vessel, to include the amenities listed in Table II (Sanitary Facility Amenities). Ensure the following:

· Shower stalls are equipped with privacy screens.

· Sinks are provided with fresh hot and cold water.

· Electrical convenience GFI receptacles, in accordance with NFPA 70, National Electric Code (NEC), are located in vicinity of sinks.

· Toilets have doors or privacy dividers.

· Lockers are capable of being locked.”

4. NOTES

4.1 Access to COMDTINST M10360.3. The COMDTINST M10360.3 may be accessed at the following URL address: http://www.uscg.mil/directives/cim.asp

4.2 QA inspection forms. QA inspection forms (QA-1 thru QA-5), required in SFLC Std Spec 0000 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 COMDTINST M10360.3, 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-based 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-12, SP-11, SP-10…).

Verify surface anchor profile using ASTM D4417-Methods B or C against COMDTINST M10360.3. 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 (Frame References)
Area (sqft)
SURFACE PREPARATION METHOD
PROFILE ACHIEVED (mils)
Min
Max
Mean

SSPC-SP-10/NACE No. 2

SSPC-SP-12/NACE No. 5

SSPC-SP-3

SSPC-SP-11

SSPC-SP-11 (inaccessible area)

Brush-blasting (non-metallic substrate)

Abrasive Manufacturer and 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 Reading:__________ mils Place Surface Profile Replica Tape Here Reading:__________ mils Place Surface Profile Replica Tape Here Reading:__________ mils

Place Surface Profile Replica Tape Here Reading:__________ mils Place Surface Profile Replica Tape Here Reading:__________ mils Place Surface Profile Replica Tape Here Reading:__________ mils

Place Surface Profile Replica Tape Here Reading:__________ mils Place Surface Profile Replica Tape Here Reading:__________ mils Place Surface Profile Replica Tape Here Reading:__________ mils

Place Surface Profile Replica Tape Here Reading:__________ mils Place Surface Profile Replica Tape Here Reading:__________ mils Place Surface Profile Replica Tape Here Reading:__________ mils

Place Surface Profile Replica Tape Here Reading:__________ mils Place Surface Profile Replica Tape Here Reading:__________ mils Place Surface Profile Replica Tape Here 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-12/NACE No. 5

SSPC-SP-3

SSPC-SP-11

SSPC-SP-11 (inaccessible area)

Brush-blasting (non-metallic substrate)

Abrasive Manufacturer and 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
_____ mils
_____ mils
_____ mils
_____ mils
Reading:
_____ mils
_____ mils
_____ mils
_____ mils
_____ mils
Reading:
_____ mils
_____ mils
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_____ mils
_____ mils
Reading:
_____ mils
_____ mils
_____ mils
_____ mils
_____ mils
Reading:
_____ mils
_____ mils
_____ mils
_____ mils
_____ mils
Reading:
_____ mils
_____ mils
_____ mils
_____ mils
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Reading:
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_____ mils
_____ mils
_____ mils
_____ mils
Reading:
_____ mils
_____ mils
_____ mils
_____ mils
_____ mils

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

_____ mils
_____ mils
_____ mils
_____ mils
_____ mils
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.

SPOT
1
2
3
4
5

Overall Avg. DFT

ADJUSTMENTS

Avg. BMR
Deviation
Before Adjustments
After Adjustments

Avg.

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

11010_UT_0310_FLT

REC_11010_UT_FLT_100’ WLI (642 CGC BUCKTHORN) (0911)

WORK ITEM 1: Hull Plating (U/W Body), Ultrasonic Testing

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to conduct ultrasonic testing (UT) of U/W hull plating.

1.2 Government-furnished property.

None.

2. REFERENCES

Coast Guard Drawings Coast Guard Drawing 642 WAGL 700-001, Rev E, Docking Plan Coast Guard Drawing 642 WAGL 1101-001, Rev L, Shell Expansion Coast Guard Publications Surface Forces Logistics Center Standard Specification (SFLC Std Spec) 0740, Jan 2009, Welding and Allied Processes Other References None.

3. REQUIREMENTS

3.1 General.

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

· 3.2 (UT measurements).

3.1.2 Technical Representative.

Not applicable.

3.1.3 Protective measures.

Not applicable.

3.1.4 Interferences.

None.

3.2 UT measurements. The Contractor shall perform a total of 150 UT measurements of U/W hull surfaces and/Buoy Deck, in locations designated by the Coast Guard Inspector, using Coast Guard Drawings 642 WAGL 700-001 and 642 WAGL 1101-001 for guidance, in accordance with SFLC Std Spec 0740, Appendix C. Mark up a copy of Coast Guard Drawing 642 WAGL 1101-001 to show all locations selected for measurement and record all measurements in Table I (UT Measurements Summary Sheet - Port/Stbd Shell) provided at the end of this item. Submit a CIR, to also include the marked up drawing and completed Table I.

4. NOTES

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

Table I - UT MEASUREMENTS SUMMARY SHEET PORT/STBD SHELL

SHOT #
STRAKE #
FWD/MID/AFT
ORIG PL
MEASURED PL
PERCENT
PLATE #
TOP/MID/BOT
THICKNESS
THICKNESS
WASTAGE

24400_0110_FLT

REC_24400_FLT_100 WLI (642 CGC BUCKTHORN) (0110)

WORK ITEM 2: Propulsion Shaft Bearings (External) , Check Clearances

1.1 Intent. This work item describes the requirements for the Contractor to take propulsion shaft bearing (external) clearances.

1.2 Government-furnished property.

None.

2. REFERENCES

Coast Guard Drawings Coast Guard Drawing 642 WAGL 4301-001, Rev F, Shafting & Bearings Coast Guard Drawing 642 WAGL 4301-002, Rev-, Propulsion Shaft Alignment Coast Guard Publications Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), Jan 2009, General Requirements Other References None.

3. REQUIREMENTS

3.1 General.

3.1.1 CIR. The Contractor shall submit a CIR for the inspections listed in the following paragraphs:

· 3.2.2 (Bearing clearances).

3.1.2 Interferences. The Contractor shall be aware that interferences in way of work include, but are not limited to the below-listed. Handle all interferences in accordance with SFLC Std Spec 0000, paragraph 3.3.5 (Interferences):

· None.

3.2 Bearing inspection particulars. Upon drydocking, the Contractor shall accomplish the following using Coast Guard Drawing 642 WAGL 4301-001 and 642 WAGL 4301-002 as guidance:

3.2.1 Cleaning. The Contractor shall thoroughly clean and visually inspect each bearing. Submit a CFR.

3.2.2 Bearing clearances. In the presence of the Coast Guard Inspector, measure and record all external propulsion shaft bearing clearances. Submit CIR.

3.2.3 General guidance minimum and maximum operating bearing clearances are as follows. If no other bearing clearance limit criteria exists (e.g. Drawing notes or other Coast Guard standards) these numbers may be used to determine when bearing clearances are excessive and bearing renewal should be considered.

Diameter of Journal (inches)
Minimum operating Clearance of new water-lubricated Bearings (inches)
MAXimum operating Clearance of water-lubricated Bearings (inches)
2 to 2.499
0.017
0.091
2.5 to 2.99
0.018
0.100
3 to 3.99
0.020
0.107
4 to 4.99
0.022
0.120
5 to 5.995
0.025
0.131
6 to 6.99
0.027
0.142
7 to 7.99
0.030
0.154
8 to 8.99
0.032
0.165
9 to 9.99
0.035
0.177
10 to 10.99
0.037
0.187
11 to 11.99
0.040
0.197
12 to 12.99
0.042
0.207
13 to 13.99
0.045
0.217
14 to 14.99
0.047
0.225
15 to 15.99
0.050
0.235

3.2.4 Inspect for any missing hardware. Reinstall any removed components, such as bearing retaining rings.

4. NOTES

This section is not applicable to this work item.

42410_0611_FLT

REC_42410_FLT_100 WLI (642 CGC BUCKTHORN) (0110)

WORK ITEM 3: Fathometer Transducer , Renew - Tender

1.1 Intent. This work item describes the requirements for the Contractor to renew the transducer.

1.2 Government-furnished property.

MTI
ITEM DESCRIPTION
NSN/PN
QTY
ESTIMATED COST

($/UNIT)

N
***Fathometer Transducer, Shallow Water, 50-200 Khz
NSN: 5845-01-518-7245
1 ea.
552.61

***Government-furnished property, which is to be supplied by either the vessel or the C4IT Service Center

2. REFERENCES

Coast Guard Drawings Coast Guard Drawing FL 6713-201, Rev B, CRP-V850 Transducer (B-14) Adapter Assembly Coast Guard Publications Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), Jan 2009, Welding and Allied Processes

Other References Raytheon CRP-V850 Color Echosounder, 2nd Edition, Mar 1993, Operation Manual

3. REQUIREMENTS

3.1 General.

3.1.1 CIR.

None.

3.1.2 Technical Representative.

Not applicable.

3.1.3 Protective measures - general. The Contractor shall protect all exposed ends of transmission lines, control lines, connectors, and cables from weather, moisture, and physical damage while they are disconnected from the transducer. Take all necessary measures to protect transducer from damage during the performance of work specified herein. Inform the COTR, in writing, of all damage, if any, that is incurred by the transducer.

3.1.3.1 In drydock.

3.1.3.1.1 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 from sandblasting during the performance of work.

3.1.3.1.2 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.

3.1.1.3.3 Waterborne.

3.1.3.1 Using a diver, remove and retain the hull ring set screws. Install an emergency cover plate and gasket over the transducer to be renewed. If available, the vessel’s emergency cover plate may be used; otherwise a new cover plate shall be fabricated and turned over to the vessel at the completion of the work.

3.1.3.2 Slowly back off the fasteners that normally maintain the transducer pressure boundary to sea. Ensure that any leakage through the emergency cover plate pressure boundary is minor prior to proceeding with transducer removal.

3.1.3.3 Upon completion of work and preliminary leak testing, completely remove the emergency cover plate and reinstall the retained set screws in each hull ring, coating the threads with anti-seize compound. Recess the set screws ⅛” and cover with beeswax tallow.

3.1.4 Interferences.

None.

3.2 Transducer renewal particulars. Accomplish the following tasks using V850 Color Echosounder Technical Manual and Coast Guard Drawing FL 6713-201 for guidance:

3.2.1 Transducer removal. Disconnect and remove the existing fathometer transducer. Retain the mounting hardware for reinstallation. Dispose of the removed transducer.

NOTE

Do not discard any hull ring adapter(s). They are to be reused with the new transducer(s).

3.2.2 New transducer installation. Install new Government-furnished transducer, in place of the removed. Reinstall each hull ring adapter and transducer in accordance with the applicable drawing using new gaskets, mold release coating, and adhesive sealants.

3.2.2.1 Ensure that the horizontal major axis of each transducer is oriented properly with respect to the vessel’s centerline. Reuse retained mounting hardware, coating all bolt threads with anti-seize compound.

3.2.2.2 Reconnect each transducer cable to its terminal board in the adjacent connection box. Renew all stuffing tube packing and seals. Inspect the connection in the presence of the Coast Guard Inspector.

3.2.2.3 Following completion of transducer installation, fabricate a ¾” × 3” × ¼” aluminum label plate, engraved with ¼-inch high numbers stating the installation date. Affix a label plate, using a suitable epoxy cement. Ensure that the label plate is visible and legible, without the need to move equipment or cables.

3.3 Transducer seal. If not waterborne, inspect the transducer to ensure that its outer circumference is installed flush to the hull ring and the transducer cover plate forms a tight seal with the hull ring.

3.4 Post installation tests. After completion of work, accomplish the following tasks, in the presence of the Coast Guard Inspector:

3.4.1 Preliminary leak test. If not waterborne, inspect and perform a water hose test of all affected boundaries in accordance with SFLC Std Spec 0740, Appendix C. If waterborne, slowly back off the emergency cover plate bolts and allow seawater to flood the transducer well. No leakage allowed. Submit a CFR.

3.4.2 Leak repairs. Observe each transducer for leaks during the vessel re-floating process (if drydocked) or emergency cover plate removal (if waterborne). Repair all leaks detected. Submit a CFR.

3.4.3 Operational test – post repairs. After completion of work, thoroughly test and prove the transducer to be satisfactory operating condition. Submit a CFR.

NOTE

Coast Guard personnel will test and operate all shipboard machinery and equipment.

4. NOTES

This section is not applicable to this work item.

52041_MWC_0511_FLT

REC_52041_FLT_100 WLI (642 CGC BUCKTHORN) (0410)

WORK ITEM 4: Sea Strainers - Duplex (All Sizes), Overhaul

1.1 Intent. This work item describes the requirements for the Contractor to overhaul the following Duplex Sea Strainer(s).

SERVICE
SIZE

(inches)

QTY
MANUFACTURER
Hydraulic cooling system
3" Duplex
1
Hydraulic firemain system
5" Duplex
1
Electric firemain system
4" Duplex
1
A/C raw water system
3" Single
1
Mueller

None.

2. REFERENCES

Coast Guard Drawings Coast Guard Drawing _________________ 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), Jan 2009, General Requirements

Other References ASTM International (ASTM) D1330, 2004, Standard Specification for Rubber Sheet Gaskets Society of Automotive Engineers (SAE) Aerospace Material Specification (AMS) G-6032, 1999, Grease, Plug Valve, Gasoline and Oil Resistant, NATO Code Number G-363, Metric

3. REQUIREMENTS

3.1 General.

3.1.1 CIR.

None.

3.1.2 Technical Representative.

Not applicable.

3.1.3 Protective measures.

Not applicable.

3.1.4 Interferences. The Contractor shall be aware that interferences in way of work include, but are not limited to the below-listed. Handle all interferences in accordance with SFLC Std Spec 0000, paragraph 3.3.5 (Interferences):

· Deck plates and grating.

· Piping and hoses.

3.2 Requirements. The Contractor shall overhaul and test the designated strainers (see paragraph 1.1 (Intent)), shown on Coast Guard Drawing _________________. Accomplish the following for each sea strainer in accordance with manufacturer’s recommendations:

3.2.1 Removal. Secure, isolate, tag-out, and remove to a suitable repair facility the designated sea strainers. Install blank flanges and gaskets over the piping system openings and secure with at least two bolts 180-degrees apart to provide a watertight seal. Ensure that the blank flanges are installed immediately after the sea strainers are removed and remain in-place until strainers are reinstalled, removing only for sea valve visual inspection.

3.2.2 Cleaning and inspection. After removing the sea strainers, visually inspect in-place the exposed sea valves and piping/hoses located adjacent to the strainers. Completely disassemble and thoroughly clean all strainer components to bright metal without damage or deformation to any component. Visually inspect all disassembled components. Submit a CFR.

3.2.3 Reassembly. Reassemble each strainer. Renew the basket cover and packing gland fasteners, as applicable. Lubricate the valves with plug valve grease conforming to AMS-G-6032.

3.2.4 Plug valve testing. Where applicable, lubricate the valves with plug valve grease conforming to AMS-G-6032. Hydrostatically test the plug valves of all duplex strainers for each strainer chamber, at a test pressure of 5 psig. To determine leakage rate the strainer shall have the outlet blanked and the unpressurized side top cover removed (two tests per duplex strainer). While maintaining the test pressure at the inlet side, the non-pressurized side shall not fill within twenty minutes. Provide a CFR which shall include, but is not limited to the following information:

· Grease type, including batch number and manufacturer.

· Time elapsed for chamber to fill, if less than twenty minutes.

CAUTION!

Ensure that the drain valve for each chamber is closed.

3.3 Reinstallation. After completion and acceptance by the Coast Guard Inspector; the Contractor shall reinstall all overhauled, cleaned and new strainers to their original locations, as shown on Coast Guard Drawing _________________. Renew all gaskets with material conforming to ASTM D1330 of the same size and configuration as those gaskets removed. Renew all hardware with nickel-copper alloy (Monel) fasteners.

3.4 Notification. The Contractor shall notify the Coast Guard Inspector at least 24 hours prior to reinstalling sea strainers.

3.5 Government’s right for changing out strainers. The Contractor shall be aware that the Government reserves the right to furnish new sea strainer(s) for installation in place of the existing strainer(s). If the Government exercises this right, the Contractor shall dispose of the old strainer(s) in accordance with all applicable Federal, state, and local regulations.

3.6 Contractor’s option for strainer renewal. The Contractor may, at no additional cost to the Government, opt to renew strainers designated for overhaul if preferable for the Contractor. New strainers shall be equivalent (including identical material) to the strainer being renewed. Visually inspect the piping and mounting arrangements, and submit a CFR detailing any required modifications to accommodate the new strainer(s).

3.7 Leak test. After all authorized work is completed, the Contractor shall perform an operational test of the sea water system using the system fluid at normal operating pressure. Be aware that no visible leakage or deformation is acceptable. Repair all leaks and discrepancies found. Submit a CFR.

3.8 Surface preservation. After all authorized repairs and tests are completed, the Contractor shall prepare and coat the sea strainer surfaces, using the system specified for "Bilges, Cofferdams and Forepeaks, Steel, Option II" in COMDTINST M10360.3, Appendix B (Cutters and Boats Interior Painting Systems). Select finish/top coat color to match existing adjacent surfaces.

NOTE

DO NOT PAINT packing glands, valve stems, threads, and similar working surfaces.

4. NOTES

4.1 Definition. The terms ‘duplex’ as used in this work item refer to the generic strainer type, not a manufacturer’s brand name.

59301_0310_FLT

REC_59301_FLT_100’ WLI (642 CGC BUCKTHORN) [only vessel in class (1209)

WORK ITEM 5: Grey Water Holding Tanks , Clean and Inspect

1.1 Intent. This work item describes the requirements for the Contractor to clean and inspect the following tank(s):

TYPE OF TANK
LOCATION
CAPACITY - 95%

(Gallons) LOW SUCTION (Gallons)

Grey Water Collection Tank
Dry Stores
50
3

2. REFERENCES

Coast Guard Drawings Coast Guard Drawing xxxx Coast Guard Publications Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), Jan 2009, General Requirements Other References ASTM International (ASTM) D1330, 2004, Standard Specification for Rubber Sheet Gaskets

3. REQUIREMENTS

3.1 General. The Contractor shall refer to Coast Guard Drawing xxxx for guidance.

3.1.1 Interferences. The Contractor shall be aware that interferences in way of work include, but are not limited to the below-listed. Handle all interferences in accordance with SFLC Std Spec 0000, paragraph 3.3.5 (Interferences):

· Piping.

· Pump(s).

3.1.2 Plugs. The Contractor shall plug all inlet and outlet piping in the tank(s) to prevent contaminants from entering. Use plugs with an attached lanyard, ring or other system that will ensure plugs are not lost in the pipe openings. Maintain a plug accountability log outside the tank to prevent any of the installed temporary plugs from being lost inside the tank or forgotten inside at tank closure. Submit this log to the Coast Guard Inspector after completion of work item.

3.2 Cleaning. The Contractor shall do the following for the tank(s) listed in paragraph 1.1 (Intent):

3.2.1 Content removal. Remove and dispose of all contents, fluids, and/or residues in accordance with all applicable Federal, state, and local regulations

3.2.2 Cleaning requirements. Remove manhole cover(s). Clean all tank structure’s interior surfaces free of all foreign materials, sediment, and sludge. Remove all persistent residues, taking care not to damage the tank coating system. Remove cleaning media and residues continuously from the tank during the washing process. Remove any residual wash media and wipe up residual moisture with clean lint-free cloths. Collect, contain, and dispose of all wash media, residues, and cleaning materials in accordance with all Federal, state, and local regulations. Clean all tank vent lines. Remove and clean the eductors and level switches inside of the tank(s). Reinstall the eductors and level switches upon completion of tank cleaning. Use new gaskets and o-rings to install/reinstall all removed/disturbed components.

3.2.3 Inspection. Visually inspect all interior surfaces, including, but not limited to bulkheads, floor and overhead plating, structural members, manhole cover surfaces, fasteners and gasket seating surfaces. Submit a CFR including the following, as applicable:

· Tank structural condition.

· Inaccessible areas.

· Condition of tank coating, including measurements taken, percentage, location, and type of coating failure.

· Suction and discharge piping and vent line condition.

· Fastener material and condition.

· Zinc anode condition (remaining percentage).

3.2.4 Control Panel Assembly. Open and vacuum clean the control panel assembly. Inspect the control panel assembly for any indications of overheating or loose wiring or connections. Submit a CFR

3.3 Closing. The Contractor shall notify the COTR at least 24 hours prior to closing the tank(s). After satisfactory inspection by the Coast Guard Inspector, and completion of all authorized repairs, close the manhole cover(s) with new gasket material conforming to ASTM D1330. The Contractor shall renew up to 10% of missing or damaged nuts and washers.

3.4 Operational test – post repairs. After completion of work, the Contractor shall accomplish the following in the presence of the Coast Guard Inspector, and submit a CFR:

3.4.1 Adjust the set point on each of the vacuum pressure switches (as applicable) to the set points noted previously.

3.4.2 Verify operation of the low and high level switches/alarms and that the pumps cycle from lead to lag status during operation.

3.4.3 Upon completion of testing and, in the presence of the Coast Guard Inspector, pump tank(s) to the limit of the ship’s installed pumps.

This section is not applicable to this work item.

59302_DLA_1209_FLT

WORK ITEM 6: Sewage Holding Tanks , Clean and Inspect 1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to clean and inspect the following tank(s):

TYPE OF TANK
LOCATION
CAPACITY - 95%

(Gallons) LOW SUCTION (Gallons)

Sewage Holding Tank
#2 Hold
700
30

2. REFERENCES

Coast Guard Drawings Coast Guard Drawing xxxx Coast Guard Publications Surface Forces Logistics Center Standard…

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