SPEC FOR BRISTOL BAY REV4.doc

USCGC BRISTOL BAY (WTGB-102)

140 FOOT ICEBREAKING TUG

AND 120 FOOT BARGE (CGB 12001)

SPECIFICATIONS FOR DRYDOCK REPAIRS

Developed By:

Louis Mikedis

Commander (v) Maintenance and Logistics Command, Atlantic 300 E. Main Street, Suite (600) Norfolk, VA 23510-9102

TABLE OF CONTENTS

Work Item Title Page iiiList of Sketches

Revisions Record iv List of Applicable References v List of Government-furnished Property xi List of Critical Inspection Items xii Specification Feedback xiii Principal Characteristics xiv General Requirements Provide Access to Various Compartments for Ship's Structure and Machinery Evaluation Board Inspection Welding Repairs Clean and Disinfect Potable Water Tanks Clean and Inspect Chain Locker Clean and Inspect Sewage and Grey Water Collection and Holding Tanks Remove, Inspect, and Reinstall Propeller Shaft Overhaul Shaft Seal Assembly Remove, Inspect, and Reinstall Propeller Renew Depth Indicating Transducer Overhaul Vaneaxial Fan and Motor Assemblies Overhaul Main Motor Blower Assembly Overhaul Valves Remove, Inspect, and Reinstall Rudder Assembly Perform Boat Boom Maintenance Perform Anchor Windlass Maintenance Modify Grey Water Tank System Clean Sewage and Grey Water Piping Systems Inspect Chocks and Tow Bitts Inspect Hydraulic Pelican Hooks Preserve Weather Decks Preserve Underwater Body - Complete Renew No. 1 & 2 Main Diesel Engine Resilient Mounts Install New Deck Covering System Service 25-Man Liferafts and Associated Hydrostatic Releases (Tender & Barge) Routine Drydocking Provide Temporary Logistics Renew Sections of Buoy Deck Plating (Barge) Clean and Disinfect Potable Water Tanks (Barge) Perform Anchor Windlass Maintenance (Barge) Perform Anchor and Anchor Chain Maintenance (Barge) Inspect and Test Air Receivers and Relief Valves (Tug)

List of Sketches

Work

Item Sketch Number Page

This section is not applicable to this package.

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.

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.

List of Applicable 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. Electronic copies of the latest Editions of MLCA Standard Specifications are available on the Internet and may be accessed at the following Internet Uniform Resource Locator (URL) address: http://www.uscg.mil/mlclant/vdiv/specs/default.htm . Guidance for obtaining copies of all other documents referenced herein is provided in the solicitation.

Order of precedence. In the event of conflicts between text of this specification and the applicable references specified herein, order of precedence shall be in accordance with MLCA Standard Specification 0000_STD, paragraph 3.2 (Order of precedence), unless otherwise specified by the Contracting Officer (KO). The Contractor shall immediately notify the KO in writing of any perceived conflicts contained herein. Nothing in these documents, however, supersedes applicable laws and regulations, unless a specific exemption has been obtained.

FEDERAL AND MILITARY SPECIFICATIONS AND STANDARDS

A-A-59588, 12 Jan 2001, Rubber Silicone DOD-STD-2187, Aug 1987, Chemical Cleaning of Salt Water Piping Systems

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

MIL-DTL-24643, Aug 2002, Cable and Cord, Electrical, Low Smoke, for Shipboard Use, Specification for

MIL-STD-1623, Dec 1981, Fire Performance Requirements and Approved Specifications for Interior Finish Materials and Furnishings

OTHER GOVERNMENT DOCUMENTS, DRAWINGS, AND PUBLICATIONS

DOCUMENTS

Coast Guard Maintenance and Logistics Command Atlantic (MLCA), Standard Specification 0000_STD, 2006 Edition, General Requirements

Coast Guard Maintenance and Logistics Command Atlantic (MLCA) Standard Specification 0740_STD, 2004 Edition, Welding and Allied Processes

Coast Guard Maintenance and Logistics Command Atlantic (MLCA), Standard Specification 3141_STD, 2004 Edition, Overhaul Electrical Rotating Machines Coast Guard Maintenance and Logistics Command Atlantic (MLCA), Standard Specification 5000_STD, 2004 Edition, Auxiliary Machinery Systems

Coast Guard Maintenance and Logistics Command Atlantic (MLCA), Standard Specification 6341_STD, 2004 Edition, Renew Deck Covering Systems

Coast Guard Maintenance and Logistics Command Atlantic (MLCA), Standard Specification 8635_STD, 2004 Edition, Provide Temporary Logistics

Code of Federal Regulations (CFR) Title 46, Part 160, Oct 2003, Lifesaving Equipment

DRAWINGS

Coast Guard Drawing 101 WTGB 114-002, Rev L, Bubbler Structure (All) Coast Guard Drawing 101 WTGB 171-002, Rev T, Mast and Boom

Coast Guard Drawing 101 WTGB 201-001, Rev H, Machinery Arrangement

Coast Guard Drawing 101 WTGB 243-001, Rev S, Shafting and Bearing Arrangement and Details

Coast Guard Drawing 101 WTGB 245-001, Rev B, Propeller and Offsets

Coast Guard Drawing 101 WTGB 245-002, Rev B, Aluminum Pattern One Single Blade

Coast Guard Drawing 101 WTGB 256-001, Rev H, S/W Circulating Cooling System Diagram

Coast Guard Drawing 101 WTGB 256-002, Rev F, S/W Circulating Cooling System, Arrang & Det

Coast Guard Drawing 101 WTGB 262-001, Rev H, Lube Oil System Arrangement and Details

Coast Guard Drawing 101 WTGB 262-002, Rev D, Lube Oil System Arrangement and Details

Coast Guard Drawing 101 WTGB 514-002, Rev X, Ventilation and Air Condition A & D, (All) Coast Guard Drawing 101 WTGB 528-001, Rev L, Sanitary & Deck Drain System Diagram

Coast Guard Drawing 101 WTGB 528-003, Rev C, Grey Water Mods and Transition

Coast Guard Drawing 101 WTGB 562-001, Rev N, Rudder

Coast Guard Drawing 101 WTGB 562-002, Rev Q, Rudder Stock Bearing Details Coast Guard Drawing 101 WTGB 581-001, Rev T, Anchor Handling A & D Coast Guard Drawing 101 WTGB 801-003, Rev C, Docking Plan Coast Guard Drawing 101 WTGB 801-005, Rev H, General Arrangement, Main Deck and Above Coast Guard Drawing FL 6713-201, Rev B, CRP-V850 Transducer (B-14) Adapter Assembly

Coast Guard Drawing 120 BARGE 130-001, Rev D, Main and Foc’sle decks Coast Guard Drawing 120 BARGE 581-001, Rev C, Anchor Handling Arrangement NAVSEA Drawing 803-1385866, Rev E, 12 Apr 1984, Penetration, Bulkhead and Deck

NAVSEA Drawing 804-1385781, Rev E, 26 Sep 1977, Hangers, Pipe, for Surface Ships

PUBLICATIONS

DOD-STD-2003-4, Dec 1990, Electric Plant Installations, Standard Methods FOR surface Ships and Submarines, Fig 1B3-1B5, Fig.3B10 through 3B18

WYTM Lineshaft Alignment Analysis, Report No. 7715, 12/27/77

Coast Guard Commandant Instruction (COMDTINST) M10360.3 (series) Jun 2006, Coatings and Color Manual Coast Guard Commandant Instruction (COMDTINST) M9000.6, Oct 2004, Naval Engineering Manual, Chapter 583, Tests and Inspection of Boats, Boat Hoisting Equipment and Fittings

Main Engine Resilient Mount Replacement Procedures, Bay Class Tug (WTGB 140), Handbook 1988 Technical Manual for Partially Split EL Stern Tube Seal, John Crane-Houdaille, Inc., Aug 22, 1986

Raytheon V850 Color Echosounder, 2nd Edition, Mar 1993, Operation Manual Coast Guard Technical Publication (TP) 3386, Nov 13 1998, Installation, Operation, and Maintenance Manual for Anchor Winch, Model AMD-863

Coast Guard Technical Publication (TP) 088, Aug 1991, Installation, Operation, and Maintenance Manual for Traction Winch, Model AMD-855

Coast Guard Technical Publication (TP) 865, Feb 24 1978, Installation, Operation and Maintenance fro Gypsy Winch, Model AMD-865

Coast Guard Technical Publication (TP) 3366, Section 583-A, Dec 2005, Boat Davit Hydraulic System

Coast Guard Technical Publication (TP) 3385, Nov 13,1998, Manufacturer’s Instruction Book, SWBS Group (S)568-573, 120 ATON Barge Cargo Handling System, Sections A through S

Coast Guard Technical Publication (TP) 3483, Section 580-A, April 2001, Manufacturer's Instruction Book-SWBS Groups 580-583, Anchor Windlass - Instructions

Coast Guard Technical Publication (TP) 3483, Section 580-B, April 2001, Manufacturer's Instruction Book-SWBS Groups 580-583, Anchor Windlass - Drawings

Coast Guard Technical Publication (TP) 3483, Section 580-C, April 2001, Manufacturer's Instruction Book-SWBS Groups 580-583, Vertical Capstan - Instructions

Coast Guard Technical Publication (TP) 3483, Section 580-D, April 2001, Manufacturer's Instruction Book-SWBS Groups 580-583, Vertical Capstan - Drawings

NAVSEA S9AA0-AB-GOS-010/GSO, Nov 2004, General Specifications for Ships Overhaul of Surface Ships - Section 305, Electrical and Electronic Designating and Marking

Naval Ships' Technical Manual (NSTM) Chapter 593, Sep 1999, Pollution Control, Section 593-4.2.3, Sanitary and Hygienic Procedures

INDUSTRY STANDARDS

American National Standards Institute/NSF International (ANSI/NSF) 61, 2005, Drinking Water System Components - Health Effects

American National Standards Institute/American Water Works Association (ANSI/AWWA) C652, 2002, Disinfection of Water-Storage Facilities

American Society of Mechanical Engineers (ASME) B16.34, 2004, Valves-Flanged, Threaded, and Welding End

American Society of Mechanical Engineers (ASME), PTC 25, 2001, Pressure Relief Devices

ASTM International (ASTM) A36, 2005, Standard Specification for Carbon Structural Steel

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

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

ASTM International (ASTM) F992, 2006, Standard Specification for Valve Label Plates

ASTM International (ASTM) E797, 2001, Standard Practice for Measuring Thickness by Manual Ultrasonic Pulse-Echo Contact Method

International Standard For Organization (ISO) 484/2, 1981, Shipbuilding - Ship Screw Propeller - Manufacturing Tolerances - Part 2: Propellers of Diameter Between 0.80 and 2.50 m, Inclusive International Standard Organization (ISO) 2953, 1999, Mechanical Vibration, Balancing Machines, Description and Evaluation

Manufacturers Standardization Society of the Valve and Fittings Industry (MSS) SP-61, 2003 Edition, Pressure Testing Of Steel Valves

Manufacturers Standardization Society of the Valve and Fittings Industry (MSS) SP-67, 2002 Edition, Butterfly Valves

Manufacturers Standardization Society of the Valve and Fittings Industry (MSS) SP-72, 1999 Edition, Ball Valves with Flanged or Butt-Welding Ends for General Service

Manufacturers' Standardization Society of the Valve and Fittings Industry (MSS) SP-80, 2003 Edition, Bronze Gate, Globe, Angle and Check Valves

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.

($/Unit)

*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, Electronic Systems Support Unit (ESU) or local Electronic Support Detachment (ESD).

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 Std Spec 0000_STD, paragraph 3.6.2 (Inspection report particulars)):

Work Item Title

6 Remove, Inspect and Reinstall Propeller Shaft 13 Remove, Inspect and reinstall Rudder Assembly

14 Perform Boat Boom Maintenance

15 Perform Anchor Windlass Maintenance

29 Perform Anchor Windlass Maintenance (Barge)

30 Perform Anchor and Anchor Chain Maintenance (Barge)

Specification Feedback

The intent of this section is to inform all users that a spec feedback mechanism is in place, and is located on the MLCA Naval Engineering Division’s website. Spec feedback is a very important part of our overall continuous improvement process, and is crucial to specification development. It will allow spec writers to capture all specification-related lessons learned, and avoid mistakes or ambiguities in follow-on availabilities. All feedback will be reviewed, evaluated, and responded to in a timely manner.

If you have access to the CGWeb (Intranet), please use the following link, which will connect you to the MLCA(v) Naval Engineering website, for submitting your feedbacks:

http://webapps.mlca.uscg.mil/vdiv/specifications/feedback/default.cfm If you do not have access to the CGWeb (Intranet), you may still submit your feedbacks, using the following web link:

http://www.uscg.mil/mlclant/VDiv/specs/specfeedback.htm Principal Characteristics

Tug

Full Load (Winter) Center of Gravity

Minimum Operating Condition Center of Gravity

Minimum Operating Condition Trimming Moment

NOTE: Values above are for representative tug. Draft and longitudinal lever values provided above are for tugs in fresh water. Longitudinal lever values are provided to adjust tug's design drag of 1.0 feet by the stern.

PROPULSION

PROPELLERS

Principal Characteristics – Barge

USCG 120 FOOT BARGE

DIESEL GENERATORS

DIESEL HYDRAULIC POWER UNIT

BOW THRUSTER

PROPELLERS

00000N_FLT (20 Apr 2007)

General Requirements

1. SCOPE

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

2. APPLICABLE DOCUMENTS

Coast Guard Maintenance and Logistics Command Atlantic (MLCA), Standard Specification 0000_STD, 2006 Edition, General Requirements

Coast Guard Maintenance and Logistics Command Atlantic (MLCA) Standard Specification 0740_STD, 2004 Edition, Welding and Allied Processes

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

3. REQUIREMENTS

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

NOTICE!

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 Contractor-provided fire extinguishers. The Contractor shall provide portable fire extinguishers.

3.3 Welding and brazing requirements. The Contractor shall perform all welding and allied processes, and nondestructive inspection (NDI), in accordance with Std Spec 0740_STD.

4. QUALITY ASSURANCE

No additional requirements.

5. NOTES

5.1 Access to COMDTINST M10360.3. The COMDTINST M10360.3 may be accessed at the following URL address: http://www.uscg.mil/ccs/cit/cim/directives/cim/cim_10360_3c.pdf.

5.2 QA inspection forms. QA inspection forms (QA-1 thru QA-5), required in Std Spec 0000_STD to be completed and submitted during preservation of “critical-coated surfaces”, are provided at the end of this item.

QA-1: QUALITY ASSURANCE INSPECTION FORM - PRESERVATION CHECKLIST

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 manufacturer(s).

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 manufacturer(s).

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.

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 (1.5-3.5 mils for abrasive-blasted steel surfaces; 1.0 mil (minimum) for power-tool cleaned surfaces; 1.0-1.5 mils for abrasive-blasted aluminum surfaces); and 1.5 –2.5 for surfaces to be coated w/single coat of inorganic zinc).

Measure soluble salt conductivity (5 measurements per 1000 sqft) – maximum threshold: 70 microsiemens/cm for non-submerged surfaces and 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 at random, to prevent under or over application.

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.

Verify system cure for service resumption - U/W Body surfaces: 5-8 hours @ 77 degrees F; Potable water tanks: 7 days @ 77 degrees F.

Ensure potable water tank exhaust ventilation is maintained continuously from and during coating application through final system cure (minimum 7 days @ 77 degrees F.), to exhaust all solvent to the atmosphere and to prevent solvent entrapment.

CHECKPOINT 10 – RECORD KEEPING

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

Signature of Inspector:______________________________________________________Date:____________

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)

.Signature of Inspector:__________________________________________________Date:____________

QA-3 QUALITY ASSURANCE INSPECTION FORM

SURFACE PROFILE LOG

Vessel Name And Hull Number:__________________________________________________

Work Item Title:_______________________________________________________________

Location Of Work (Including Frame Numbers):_____________________________________

Area (Square Feet):_____________

Surface Preparation Method:_____________________________________________________

Abrasive Manufacturer And Size:_________________________________________________

Degreasing Method Used:________________________________________________________

Number Of Hours Surfaces (Steel Only) Left Unpainted:______________________________

Sweep blasting performed to remove flash rusting (steel)? Yes/No:_____________________

Place Surface Profile Replica Tapes In The Spaces Provided Below, To Serve As Permanent QA record.

Maintain separate log for each area/location. When an Area Is Divided Into Separate Sections, Maintain A Separate Log for Each Section.

AVERAGE MILS

(IAW ASTM D4417, METHOD C)

Place Surface Profile Replica Tape Here

Reading:__________ mils

· Place Surface Profile Replica Tape Here

Reading:__________ mils

Place Surface Profile Replica Tape Here

Place Surface Profile Replica Tape Here

Place Surface Profile Replica Tape Here

Place Surface Profile Replica Tape Here

Place Surface Profile Replica Tape Here

Place Surface Profile Replica Tape Here

Date and Time:__________________________________________________

Location of Surface Profile Measurements:___________________________________________________________

Signature of Inspector:____________________________________________________________________________

QA-4. QUALITY ASSURANCE INSPECTION FORM

SURFACE SOLUBLE SALT CONDUCTIVITY LOG

Vessel Name and Hull Number:__________________________________________________

Work Item Title:_______________________________________________________________ Location of Work (including frame numbers):_______________________________________

Area (square feet):____________

(microsiemens/cm)

Date and Time:_________________________________________

Signature of Inspector:___________________________________

QA-5. QUALITY ASSURANCE DATA FORM

DRY FILM THICKNESS (DFT) MEASUREMENTS IAW SSPC PA-2

(Use one sheet for each sequence)

Vessel Name and Hull Number:__________________________________________________

Work Item Title:______________________________________________________________

Coating Manufacturer:_________________________________________________________

Product Name:________________________________________________________________

Batch Number:________________________________________________________________

Induction Time:_______________________________________________________________

Coating System Sequence (Indicate whether: primer, touch-up primer, barrier coat, 3rd coat…):__________________

DFT

MEASUREMENT NUMBER

Application Method (Airless, Conventional Spray, Rolled):____________________

Average DFT: __________________________________________________________

Date and Time: _________________________________________________________

Signature of Inspector: ___________________________________ S06100N_SWIT (02 Apr 2006)

WORK ITEM 1: Provide Access to Various Compartments for Ship's Structure and Machinery Evaluation Board Inspection

1. SCOPE

1.1 Scope. This work item describes the requirements for the Contractor to provide access to various compartments and locations throughout the vessel, to allow Coast Guard personnel to conduct a Ship's Structure and Machinery Evaluation Board (SSMEB) Inspection; and close compartments and restore removed components to original configurations, after the Coast Guard inspections have been completed.

2. APPLICABLE DOCUMENTS

Coast Guard Maintenance and Logistics Command Atlantic (MLCA), Standard Specification 0000_STD, 2006 Edition, General Requirements

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

ASTM International (ASTM) E797, 2001, Standard Practice for Measuring Thickness by Manual Ultrasonic Pulse-Echo Contact Method

3. REQUIREMENTS

3.1 General.

3.1.1 SSMEB work scheduling. The Contractor shall be aware that all work specified herein, including the Coast Guard Inspections, shall be completed within the first 25% of the original contract period. Consequently, the Contractor shall determine when the SSMEB fits best into the first 25% of the contract period's production schedule, and allot on the planning document the necessary time for the completion of the tasks specified herein. The time allotted shall include an additional three full days for the SSMEB inspections. Notify the COR of the allotted time frames at the Arrival Conference. When the board is working in a compartment, ensure that no other work goes on inside or on the boundaries of that compartment.

3.1.2 Joint inspection. On the day of the Arrival Conference, the Contractor, accompanied by Coast Guard Inspector, shall conduct an inspection of all spaces affected by this work item. This inspection shall identify specific vessel components to be removed and reinstalled, as specified herein. The Contractor shall document, with photographic equipment or some other method, the locations and configurations of interferences to be removed and reinstalled.

3.2 Interferences. The Contractor shall be aware that interferences in way of work include, but are not limited to the following:

· Wiring.

· Piping.

· Deck Plates.

3.3 SSMEB work requirements. The Contractor shall accomplish the following, to facilitate the SSMEB inspections:

Tug.

· Fuel Tank 2-76-0-F. The vessel will transfer fuel oil to another tank, and the Contractor shall & clean Fuel Tank 2-76-0-F.

· Compartment 2-8-0-Q, The Contractor shall remove sheathing and insulation @ Fr 6 to aft. Upon completion of inspection by the SSMEB the Contractor shall renew sheathing and insulation in kind.

· Main Motor Foundation.

· Thrust Bearing Forward Foundation.

· Ballast tanks 4-32-1 and 4-32-2 (Part of Modify Sewage & Grey Water Piping System).

· Compartment 4-52-0-Q, The Contractor shall remove 2,000 pounds of pig iron from keel to second longitudinal for inspection by the SSMEB. Upon completion of all inspection the Contractor shall reinstall all removed pig iron.

· Sea Chest.

· Bubbler Pocket. The Contractor shall cut an access large enough to conduct a visual inspection at frame 20 portside, and frame 59 starboard using Coast Guard Drawing 101 WTGB 114-002 as guidance. Upon completion of all inspections by the SSMEB reinstall and weld inspection plates.

· Preserve Underwater Body. Allow for SSMEB inspections.

Barge.

· Ballast Tanks 2-100-1-W & 2-100-2-W. Dispose of all fluids in ballast tanks in accordance with Federal, State and local regulations. Clean Ballast Tanks.

· Crane Pedestal.

· Voids 2-0-1-V & 2-0-2-V. Clean voids.

· Tank 2-15-1-F. The vessel will transfer any fuel to another tank, and the Contractor shall clean fuel tank 2-15-1-F.

· Compartment 1-3-1-A. The Contractor shall remove sheathing and insulation from frame 18 to aft for inspection of structure by the SSMEB. Upon completion of all inspections the Contractor shall renew sheathing and insulation in kind.

3.4 Ultrasonic thickness measurement. The Contractor shall perform a total of 500 thickness measurements of ship’s structure, in locations designated by the Coast Guard Inspector. Within 24 hours after completing the measurements, furnish to the COR a written report. The ultrasonic apparatus, procedure requirements, and report shall be in accordance with ASTM E797. The report results shall additionally include, for each test point:

· Location.

· Original metal thickness.

· Measured metal thickness.

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

3.5 Restorations. Upon completion of the SSMEB, the Contractor shall accomplish the following:

3.5.1 Renew all removed bulkhead and overhead insulation materials.

3.5.2 Reinstall all removed joiner bulkhead sections.

3.6 Touch-up preservation. The Contractor shall prepare and touch-up coat all disturbed surfaces to match existing adjacent surfaces in accordance with Std Spec 0000_STD, paragraph titled “General preservation requirements”; and in accordance with COMDTINST M10360.3, Appendix B (Cutters and Boats Interior Painting Systems).

4. QUALITY ASSURANCE

4.1 Apparatus standardization. The Contractor shall perform ultrasonic equipment standardization in accordance with ASTM E797, Section 7 (Standardization of Apparatus) and Section 8 (Technical Hazards).

5. NOTES

5.1 Purpose of the SSMEB. The objective of a SSMEB is to determine the condition and estimate the remaining service life of the vessel and its component systems. This is accomplished by close visual inspection of various compartments and locations and use of non-destructive tests. The visual inspections are conducted exclusively by the Coast Guard.

5.2 Board-Contractor cooperation. The Board Chairmen will work closely with the contractor to ensure successful and timely completion of the work specified herein.

5.3 Unit responsibility. The vessel’s crew will remove and reinstall all loose gear in way of work.

07400D_FLT (25 Apr 2006) FLT (05 Jan 2004) WORK ITEM 2: Welding Repairs

1. SCOPE

1.1 Scope. This work item describes the requirements for the Contractor to perform welding repairs.

2. APPLICABLE DOCUMENTS

Coast Guard Maintenance and Logistics Command Atlantic (MLCA) Standard Specification 0740_STD, 2004 Edition, Welding and Allied Processes

3. REQUIREMENTS

3.1 General. The Contractor shall perform all welding and nondestructive inspection (NDI) in accordance with Std Spec 0740_STD. This work item includes all welding related activities only and does not include interference removal.

4. QUALITY ASSURANCE

No additional requirements.

5. NOTES

This section is not applicable to this work item 12314A_FLT (09 Nov 2007) 140 WTGB (20 Oct 2003) WORK ITEM 3: Clean and Disinfect Potable Water Tanks

1. SCOPE

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

2. APPLICABLE DOCUMENTS

American National Standards Institute/NSF International (ANSI/NSF) 61, 2005, Drinking Water System Components - Health Effects

American National Standards Institute/American Water Works Association (ANSI/AWWA) C652, 2002, Disinfection of Water-Storage Facilities

3. REQUIREMENTS

3.1 General. The Contractor shall do the following for the designated tank(s):

3.1.1 Operational test – initial. Prior to commencement of work, the Contractor shall witness an operational pre-test (by Coast Guard personnel) of all designated tank TLIs to demonstrate existing operational condition. Submit a CFR.

3.1.2 Tank content removal. Remove and dispose of all fluids and/or residues in accordance with all applicable Federal, state, and local regulations.

3.1.3 Cleaning requirements. Remove tank covers; clean tank interior surfaces free of all foreign materials, such as sediment or 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.

3.1.4 Inspection. Visually inspect all tank 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, if any.

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

· Tank level indicator (TLI) and/or float switch condition (if applicable).

· Sounding tube and striker plate condition.

· Suction and discharge piping condition.

· Fastener material and condition (correct fastener material is stainless steel).

3.2 Tank closing. After satisfactory inspection by the Coast Guard Inspector, and completion of any authorized repairs, close tank manhole covers with new gasket material conforming to ANSI/NSF 61.

3.3 Tank disinfecting. After all other work involving the potable water system and tank closing have been completed, the Contractor shall disinfect and treat the affected potable water tanks, as necessary to meet or exceed the requirements of AWWA C652. After tank disinfecting pump, all treated water and dispose of in accordance with all Federal, state and local regulations.

WARNING!

Ensure that no one enters the tanks once disinfection is completed.

4. QUALITY ASSURANCE

4.1 Operational test – final. In the presence of the Coast Guard Inspector, the Contractor shall thoroughly test and prove the TLIs to be in satisfactory operating condition (see 5.1 (Equipment operation)). Submit a CFR.

5. NOTES

5.1 Equipment operation. Coast Guard personnel will operate all shipboard machinery and equipment during all operational tests.

12316_102(11 Jan 2008)

140 WTGB (16 Oct 2003) WORK ITEM 4: Clean and Inspect Chain Locker

1. SCOPE

1.1 Scope. This work item describes the requirements for the Contractor to clean and inspect the chain locker.

2. APPLICABLE DOCUMENTS

NONE

3. REQUIREMENTS

3.1 General. The Contractor shall do the following for the designated structures:

3.1.1 Content removal. Remove and dispose of any fluid contents, in accordance with all applicable Federal, state, and local regulations.

3.1.2 Cleaning requirements. Clean the designated structure’s interior surfaces free of all foreign materials, such as sediment or 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.

3.1.3 Inspection. Visually inspect all chain locker 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:

· Structural condition including padeyes.

· Inaccessible areas.

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

· Fastener material and condition (correct fastener material is stainless steel).

· Ensure chain locker access is left uncovered for the purposes of allowing the ship’s force to preserve anchor and anchor chain.

3.1.4 Interferences. The Contractor shall be aware that interferences in way of work include, but are not limited to the following:

· Anchor and Anchor Chain.

3.2 Closing. Notify the COR at least 24 hours prior to closing the chain locker. Notice; Chain Locker has a four dog WTH.

4. QUALITY ASSURANCE

No additional requirements.

5. NOTES

This section is not applicable to this work item.

12319A_FLT (09 Nov 2007)

140 WTGB (03 Nov 2003) WORK ITEM 5: Clean and Inspect Sewage and Grey Water Collection and Holding Tanks

1. SCOPE

1.1 Scope. This work item describes the requirements for the Contractor to clean the below designated tank(s):

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

3. REQUIREMENTS

3.1 General.

3.1.1 Related work items. The Contractor shall accomplish this work item in conjunction with the following, which is a separate work item in this specification package:

· “Modify Grey Water Tank System”.

· “Clean Sewage and Grey Water Piping System”.

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

3.2.1 Operational test – initial. Prior to commencement of work, the Contractor shall witness an operational pre-test (by Coast Guard personnel) of all designated tank TLIs to demonstrate existing operational condition. Submit a CFR.

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

3.2.3 Cleaning requirements. Remove manhole cover(s). Clean the designated 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.

3.2.4 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.

· Tank level indicator (TLI) and/or float switch condition.

· Suction and discharge piping condition.

· Fastener material and condition (correct fastener material is stainless steel).

3.3 Closing. The Contractor shall ensure that the tanks remain open for approximately 24 hours after completion of the tasks specified above. Notify the COR at least 24 hours prior to closing the tank(s). After satisfactory inspection by the Coast Guard Inspector and after authorized repairs, if any, reinstall manhole cover(s) with new gasket material conforming to ASTM D1330. The Contractor shall clean and reseal all tank sight glasses, if applicable, prior to reinstallation.

4. QUALITY ASSURANCE

4.1 Operational test – final. In the presence of the Coast Guard Inspector, the Contractor shall thoroughly test and prove the TLIs to be in satisfactory operating condition (see 5.1 (Equipment operation)). Submit a CFR.

5. NOTES

5.1 Equipment operation. Coast Guard personnel will operate all shipboard machinery and equipment during all operational tests.

24310L_FLT (12 Apr 2007) 140 WTGB (26 Oct 2007) WORK ITEM 6: Remove, Inspect, and Reinstall Propeller Shaft

1. SCOPE

1.1 Scope. This work item describes the requirements for the Contractor to remove, inspect, and reinstall the propeller shaft.

2. APPLICABLE DOCUMENTS

Coast Guard Maintenance and Logistics Command Atlantic (MLCA), Standard Specification 0740_STD, 2004 Edition, Welding and Allied Processes

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

Coast Guard Drawing 101 WTGB 243-001, Rev S, Shafting and Bearing Arrangement and Details

WYTM Lineshaft Alignment Analysis, Report No. 7715, 12/27/77

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

3. REQUIREMENTS

3.1 General.

3.1.1 Critical Inspection Report. The Contractor shall submit a critical inspection report (CIR) for the inspections listed in the following paragraph(s):

· 3.2.2 (Inspections).

3.1.2 Related work item. The Contractor shall accomplish this work item in conjunction with "Remove, Inspect and Reinstall Propeller” and “Overhaul Shaft Seal Assembly” which are separate work item of this specification.

3.1.3 Interferences. The Contractor shall be aware that interferences in way of work include, but are not limited to the following:

· Deck plates.

· Cat walk over the shaft.

· Rope guard.

· Fairwater.

· Stern tube seal system.

3.2 Work to be accomplished. Prior to shaft removal and inspections, the Contractor shall obtain and record gap and offset readings using the Data provided in section 5.3 while the vessel is water-borne and submit CIR. Using Coast Guard Drawing 101 WTGB 243-001 as guidance, as applicable, the Contractor shall accomplish the following for the propeller shaft:

NOTICE

Do not use aft pedestal bearing housing as a strong back for removal of coupling bolts.

3.2.1 Removals.

· Mark existing shaft position, and match-mark shaft coupling bolts to their respective holes, to facilitate reinstallation procedures.

· Remove the shaft and attached components to a suitable repair facility. Ensure shaft is properly protected and supported at all bearing journals, at all times, until reinstallation.

3.2.2 Inspections. Clean the shaft free of all marine growth, and accomplish the following inspections (Submit CIR):

3.2.2.1 Visually inspect the following components, as applicable, for excessive wear and other mechanical defects such as nicks, cracks, and corrosion, as applicable:

· Shaft surfaces.

· Bearing surfaces.

· All shaft and propeller associated fasteners.

· Couplings.

· Stern tube/shaft sealing systems.

· Packing ring and glands.

NOTICE

Before taking shaft runout readings, spin the shaft on a lathe for approximately two hours at the vessel’s maximum rated RPM to eliminate any sagging that may have occurred during handling and storage.

3.2.2.2 Accomplish the following measurements:

· Measure keys and keyways.

· Measure all bearing sleeve or journal diameters.

· Measure runouts for shaft taper, shaft straightness, and coupling end diameters.

· With the key in-place, fit the shaft coupling to the shaft in shop and check the contact percentage by bluing. If the contact is less than 80%, the Contractor shall grind and hand stone the coupling hub to achieve a minimum of 80 percent contact, and verify by bluing again. Make a small inscription on the shaft to mark the coupling hub location and use it as a reference in final assembly. Measure and record the coupling face and bore runouts.

3.2.2.3 Perform nondestructive inspection of all bearing sleeves, shaft tapers, coupling bolts, keyways, and welded repair surfaces, in accordance with Std Spec 0740_STD, Appendix C.

3.2.2.4 Inspect the shaft fiberglass covering for porosity as follows:

3.2.2.4.1 Visually inspect the plastic covering for evidence of lack of adhesion, and other defects.

3.2.2.4.2 Conduct a high voltage spark test of the covering at 250 to 300 volts per mil of glass reinforcement (approximately 15,000 volts for a four-ply covering). Pay particular attention to the joining line between sleeves, couplings, and shafts.

3.2.3 Stern tube preservation. Prepare and coat the interior stern tube surfaces in accordance with COMDTINST M10360.3, using the system specified for “Bilges, Cofferdams, and Forepeaks, Steel, Option III”, in Appendix B (Cutter and Boat Interior Paint System). After surface preparation and before coating application, do the following:

3.2.3.1 Perform a visual inspection of the prepared stern tube surfaces.

3.2.3.2 Submit a CFR.

3.2.4 Reinstallation. Reinstall the propeller shaft to its original configuration and accomplish the following, using Coast Guard Drawing 101 WTGB 243-001, as applicable.

3.2.4.1 Machine, grind, or hand-stone couplings, if necessary, to achieve an 80 percent contact.

3.3 Government-furnished shaft. The Contractor shall be aware that the Government reserves the right to furnish a spare propeller shaft to be installed in lieu of the one removed. After a Change Request has been released and authorized by the KO, the Contractor shall transport the spare shaft to a suitable inspection facility, perform the inspections specified in paragraph 3.2.2 (Inspections), and submit a CFR.

4. QUALITY ASSURANCE

4.1 Post-repair operational testing. In the presence of the Coast Guard Inspector, the Contractor shall thoroughly test and prove the shafting system to be in satisfactory operating condition. Conduct a sea trial to test the propeller shaft in all modes of operation for a minimum of 4 hours. Inspect and correct any excessive leakage, abnormal noise and excessive vibration.

5. NOTES

5.1 Government-furnished property.

($/UNIT)

5.2 A temporary support of 600 lbs +/-30 lbs is required at Frame 73, approximately 7 inches from the shaft coupling flange in accordance with the WYTM Motor Alignment Report (Figure 5).

5.3 From paragraph 3.3 of the WYTM Motor Alignment Report:

24330L_140 (04 Apr 2007)

WORK ITEM 7: Overhaul Shaft Seal Assembly

1. SCOPE

1.1 Scope. This work item describes the requirements for the Contractor to overhaul the shaft seal assembly.

2. APPLICABLE DOCUMENTS

Coast Guard Drawing 101 WTGB 243-001, Rev S, Shafting and Bearing Arrangement and Details

Technical Manual for Partially Split EL Stern Tube Seal, John Crane-Houdaille, Inc., Aug 22, 1986

3. REQUIREMENTS

3.1 General.

3.1.1 Technical representative services. The Contractor shall provide an on-site qualified technical representative, familiar with the John Crane Type EL face seal assembly, who shall advise on manufacturer's proprietary information, dimensions, and clearances associated with the system, assist with proper repair methods, and ensure compliance with manufacturer's procedures and standards during disassembly, inspection, and reassembly of the John Crane Type EL face seal assembly. The technical representative shall be a Warsila-Lipps, Inc. technical representative or its licensee.

3.1.2 Interferences. The Contractor shall be aware that interferences in way of work include, but are not limited to the following:

· Propeller shaft.

· Propeller shaft coupling.

· Propeller shaft guard.

· Coupling shaft guard.

3.2 Seal overhaul particulars. The Contractor shall accomplish the following tasks, using Coast Guard Drawing 101 WTGB 243-001 and the John Crane Stern Tube Seal Technical Manual as guidance:

3.2.1 Removal. Disassemble and remove the existing shaft seal from the propeller shaft.

3.2.2 Inspections. Accomplish the following inspections, and submit a CFR for each inspection:

3.2.2.1 Coupling. While water-borne and prior to sliding back the propeller shaft perform face to face coupling alignment for bench mark purposes.

3.2.2.2 Float. Measure the total float (thrust).

NOTICES!

1. Fabrication of temporary strong backs maybe required in order to measure the total float (thrust).

2.The maximum allowable float (thrust) should be 0.040 inches.

3.2.2.3 Shaft sleeves. After removal of all the seal components, visually inspect the shaft sleeve surfaces and all the removed seal components for wear, defects and deterioration.

3.2.2.4 Replacement shaft seal kit. Under the supervision of the technical representative, visually inspect the new Government-furnished seal kit for any defects.

3.2.3 Seal component renewal. Refurbish the shaft seal with Government-furnished seal components, under the supervision of the Tech Rep. Ensure the following:

· The compression adapter-tool holes are plugged with renewed plugs, as required.

· The seal is installed with motor armature located in the center of its float (thrust) range.

3.2.4 Seal air test. Do the following:

· Operate the inflatable seal and increase pressure to the manufacturer's recommended pressure.

· Visually inspect all pipe joints, to ensure they are tight.

· With seal inflated, shut off all supply valves, and monitor air leakage. Correct any discrepancy noted.

· Deflate the seal.

3.2.5 Seal water leakage test. After the vessel is waterborne, do the…