SOW.pdf

USNS COMFORT

(T-AH 20)

DRYDOCKING AND UNDOCKING SOL. NO. NXXXXX-18-XXXX

22 March, 2018

ITEM NO. 0901 CATEGORY “A” MSC/CSI/THILENIUS/JWT

UW HULL PROPELLER AND SEACHEST CLEAN AND INSPECT

0901-1

1. ABSTRACT

1.1. This item describes the requirements for the contractor to clean and inspect the sea chests, transducers, anodes, reference cells, hull penetrations and propeller.

2. REFERENCES/ENCLOSURES

2.1. References:

2.1.1. Naval Ships Technical Manual, Chapter 081 “Waterborne Hull Cleaning of Naval Ships”.

2.1.2. NAVSEA Dwg 801-5980060 Rev E, Hospital Ship TAH-19 Docking Plan.

2.1.3. NASSCO Dwg 390-203-004 Rev H, Propeller Details

2.1.4. NASSCO Dwg 390-203-007 Rev A, Skewed Propeller Details

2.2. Enclosures:

2.2.1. Diving Operations Checklist

2.2.2. Data Logging Form

3. ITEM LOCATION/DESCRIPTION

3.1. Location/Quantity

3.1.1. Location: Hull below the waterline

3.1.2. Quantity: One (1) Propeller, One (1) Rudder and other fixtures per Ref. 2.1.2.

3.2. Item Description/Manufacturer’s Data:

3.2.1. Propeller Description:

Diameter – 26 Feet Blades: 5 ea.

Material – Nickle Aluminum Bronze Weight Approximate – 115,360 lbs

4. GOVERNMENT FURNISHED EQUIPMENT/MATERIAL/SERVICES: NAVSEA Paint Field Service Representative will be on site to offer technical assistance.

5. NOTES

5.1. The contractor and all subcontractors, regardless of tier must consult the General Technical Requirements (GTR) to determine applicability to this work item. In performance of this work item, the contractor and all subcontractors regardless of tier must comply with the requirements of all applicable GTRs including but not limited to GTRs 1-7, 22, 23, 28, and 29.

GTRs can be obtained from the following URL:

http://www.msc.navy.mil/instructions/pdf/m470016.pdf

5.2. The contractor and all subcontractors, regardless of tier are advised to review other work items under this contract to determine their effect on the work required under this work item.

Many of the definitions relating to performance of this work item are found in Work Item 0001.

http://www.msc.navy.mil/instructions/pdf/m470016.pdf

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6. QUALITY ASSURANCE REQUIREMENTS

6.1. In addition to the contractor’s duties under 29CFR1910.147 or similar local safety regulation, the contractor shall comply with all requirements of equipment lock-out/tag-out (LOTO) program as established by MSC SMS procedure 2.1-004-ALL Lock-out/Tag-out. The Chief Engineer shall administer the program. Prior to the start of work, the contractor shall contact the REP and / or the Chief Engineer to coordinate the implementation of the LOTO program for the entire performance period of this item. The prime contractor shall be responsible for compliance by both prime and subcontractor personnel.

7. STATEMENT OF WORK

7.1. Arrangements/Outfitting:

7.1.1. Provide all material and special equipment. Make all removals and restorations.

Remove and replace all interferences, rig and unrig, stage and unstage, make all disassemblies and subsequent reassemblies, provide and operate equipment, and supply all services and assistance to accomplish the following work. (Material, unless specifically stated as Government Furnished Material (GFM) shall be supplied by the contractor).

7.1.2. Provide the services of an American Bureau of Shipping (ABS) approved firm for accomplishing inspection and cleaning of sea chests, sea chest grating and fasteners, transducers, fathometer, speed log, anodes, reference cells, hull penetrations and propeller. Qualification shall be submitted to MSCREP prior to start of work.

7.1.2.1. Company shall be able to take underwater thickness measurements of suspect areas.

7.1.2.2. Company shall coordinate daily diving efforts with the crew. Divers shall complete Diving Safety Checklist (Sample attached) with ship prior to entering the water.

7.1.3. Perform pre-clean inspection per para 7.3 and provide a preliminary report within one day of accomplishment.

7.1.3.1. Video and Pictures shall be taken during pre-cleaning inspection and be made immediately available to MSCREP, should the need arise.

7.1.4. After pre-clean inspection, accomplish a “Full Cleaning” of marine growth as described below and using 2.1.1 as guidance and as follows:

7.1.4.1. Clean and polish propeller blades, propeller hub and propeller fairwater caps to a Rupert B condition.

7.1.4.2. Brush clean by hand each of the CAPAC electrodes to remove any soft marine growth.

7.1.4.3. Brush clean by hand each of the transducers to remove any soft marine growth.

7.1.4.4. Clean rudders and sea chest screens using approved methods per reference 2.1.1.

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7.1.4.5. Inspect Rudder, appendages and screens after machine cleaning to determine if additional work is required

7.1.4.6. Opening of sea chest screens to access sea chest internal areas is NOT required unless conditions found by the above inspection are unusual. This additional work will be the subject of a change order if required.

7.2. Preparation of Drawings/Documentation:

7.2.1. Record observations regarding biofouling, physical coating performance, and any cleaning (tool/brush and location) per recommended data logging form on Enclosure

2.2.2. Provide a completed enclosure 2.2.2 to the MSCREP.

7.2.2. Provide a report of initial conditions found during the pre-cleaning inspection.

Report shall be submitted within one day of completion.

7.2.3. Document final results of inspection and cleaning per Ref. 2.1.1 and provide preliminary report prior to departing. Submit final report no later than 10 working days after delivery of the preliminary report.

7.3. Inspection/Test:

Waterborne Inspection to Document Underwater Hull Test Coating System Performance Applied to USNS Comfort (T-AH 20)

Divers will take a total of 24 photographs prior to any hull cleaning at specific stencil locations on the hull (Table 1) and complete the accompanying data logging form (Enclosure 2.2.2, below). Photographs (Figure 1) and observations are intended to document underwater hull coating system performance (both biofouling and physical) on three coating systems installed as belly bands.

Table 1. Stencil IDs and locations for each coating on the USNS Comfort (T-AH-20). Stencils are listed in order of “closer to the waterline” to “closer to the keel”.

Stencil ID

Coating Frame # Port Starboard

1R 60 1R1, 1R2, 1R3, 1R4 1R5, 1R6, 1R7, 1R8

7A 61 7A1, 7A2, 7A3, 7A4 7A5, 7A6, 7A7, 7A8

5P 62 5P1, 5P2, 5P3, 5P4 5P5, 5P6, 5P7, 5P8

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Figure 1. Black rectangles in Photo A indicate the correct positioning of photographs at the stencil locations. Photo B is an example of the expected photo quality for underwater hull inspections in regards to photo clarity and lighting (Note: this photograph does not show the expected stencil marking). Name each photograph file to adequately identify stencil location.

7.4. Painting:

7.4.1. Mechanically clean, prime and paint all new and disturbed surfaces to match surrounding areas.

7.5. Marking:

7.5.1. Install name plates, notices, cable tags, and markings for all new and modified systems.

7.6. Manufacturer’s Representative:

7.6.1. Contractor performing underwater hull, cleaning and inspection services shall be an ABS recognized company for conducting underwater hull inspections.

7.6.2. The following companies were listed by ABS for the Tidewater Virginia area as being approved:

7.6.2.1. CHESAPEAKE BAY DIVING

Tel: : 757-397-0422 Fax: : 757-399-8482 Contact:: Aaron Addison Aaron.addison@chespaeakebaydiving.com http://www.chespaeakebaydiving.com

Color scale not required. A) B) http://www.chespaeakebaydiving.com/

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7.6.2.2. CROFTON DIVING CORPORATION

Tel: : 757-397-1131 Fax: : 757-397-8693 Contact:: John Davis jdavis@croftondiving.com http://www.croftondiving.com

7.6.2.3. SEAWARD MARINE SERVICES INC

Tel: : +1 757-853-7683 +1 757-328-7899 Fax: : +1 757-853-9376 Contact: David Spruill dspruill@seaward-marine.com http://www.seaward-marine.com

7.6.2.4. RANDIVE, INC.

Tel: : 732-324-1144 Fax: : 732-324-1555 Contact:: Kurt Erlandson diveservices@randive.com http://www.randive.com

7.6.3. The following companies were listed by ABS for the San Diego area as being approved:

7.6.3.1. C&W Diving Services

3561 Dalbergia St San Diego CA 92113 Office 619-474-2700 ext 102 Cell 619-954-4892

7.6.3.2. Western Diving Services

P.O. Box 344 National City, CA. 91951

(619) 474-3100 Ph

(619) 474-3200 Fax

7.6.3.3. SEAWARD MARINE SERVICES INC

POC : Operations Manager Kevin Morero 4559 Federal Blvd San Diego, CA 92102

(619) 474-8163

8. GENERAL REQUIREMENTS

8.1. None additional.

mailto:diveservices@randive.com

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Enclosure 2.2.1

Diving operations will commence on USNS/USS ____________on_____________(Time/Date).

Nature of operations: ____________________________________________________

Diving Supervisor POC if Contractor:_________________ phone:________________ Diving Supervisor POC if Military ____________________ phone: ________________

COMMERCIAL DIVE CONTRACTOR/MILDET

CHECKLIST NOTE:

If a commercial diving company or MILDET is employed, they may utilize their own dive safety checklist in conjunction with this checklist. Compare the requirements of this checklist with the contractor’s/MILDET’s checklist to verify all items are accounted for. In all circumstances this checklist shall be completed and filed by the Chief Engineer.

1. Engineering Dept: Lock Out / Tag Out

a) Lock Out/Tag Out appropriate equipment in accordance with SMS LOTO Record Sheet, Form 2.1-004-02-ALL prior to Diving Operations. Typical equipment/systems Locked Out / Tagged Out include: (initial or N/A as applicable to your vessel when verified isolated)

_______ Speed Log

_______ Fathometer

_______ Cathodic Protection Impressed Current Systems

_______ Bow Thrusters

_______ Underwater Telephone (WQC-2 for T-ARS Class)

_______ Rudders & associated p/s hydraulic power units

_______ Shafts & Propellers

_______ Controllable Pitch Propellers (p/s pitch set to zero angle)

_______ Sea Suctions and discharges

_______ CHT/Sewage discharges as applicable

_______ Other:_________________

_______ Other:_________________

_______ Other:_________________

_______ Other:_________________

_______ Other:_________________

../20170501%20VRR/20161107%20VRR/AppData/Local/Microsoft/FY14/VR%20No-2%20Dec%2013/F0201042.DOC

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b) Operating Equipment/Information: List which may affect divers (fire pumps, etc.):

MSD NOTE:

MSD discharges during diving operations is not currently restricted in accordance with the US Navy Dive Manual NAVSEA 0910-LP103-8009 Revision 6.

2. Deck Dept: Mate on Watch (MOW)

MOW Actions - Prior to Diving Operations Time Initials

Lock Out / Tag Out of ship systems/equipment is verified complete by engineering dept.

Review diving company’s checklist (when provided) is complete, confirming all items on this checklist (SMS 7-13-01-01-ALL) are included or accounted for.

AS Only – Notify R-5 (Radiological Controls Division) of pending dive operations. R-5 duty officer may be required to conduct brief prior to commencing dive operations.

All ships in the vicinity are notified of diving operations and confirmed their sonar gear is secured

Confirm no ships, barges or floats are scheduled for movement alongside during diving operations

Inport-Notify port services diving operations to commence

Ship’s condition, including mooring lines, anchors and anchor chains, will not be modified without notification of Diving Supervisor and receipt of consent

Hoist the following as applicable:

Code Alpha in international waters (USS vessels)

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Alpha in inland waters (USS Vessels)

Alpha in inland and international waters (USNS vessels)

Sport Dive Flag (if available)

3. Approvals: Ship conditions are safe to commence diving.

a) Mate On Watch _________________________ Signature/date

b) Diving Supervisor _________________________ Signature/date

c) Chief Engineer _________________________ Signature/date

d) Master/CO _________________________ Signature/date

4. Diving Operations:

a. Commencement of Diving Operations announcement made on 1 MC as follows:

“There are divers working over the side. Do not throw anything over the side, do not rotate screws, cycle rudders, take suction from or discharge to the sea, blow or vent any tanks, activate underwater electrical equipment or change the status of any engineering equipment or open or close any valves before checking with the Chief Engineer and the Diving Supervisor.”

b. Precautions in effect are to be passed to relieving Mate-on-Watch.

c. Completion of Diving: when directed by the Diving Supervisor, the following announcement shall be made over the 1 MC:

“Secure from diving operations. Carry out normal routine in accordance with previous instructions.”

MOW Actions - Completion of Diving Operations Time Initials

Completion of Diving Operations announcement made on 1 MC

Inport-Notify port services when diving operations completed

Code Alpha lowered

d. Return this Checklist to Chief Engineer to retain for one year.

0901-9

Enclosure 2.2.2