Attachment 5 - PWS SAG Full Hull Cleaning.pdf

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USNS SACAGAWEA

( TAKE 2 )

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0980_A_CLEANING OF PROPELLER, AND

FULL HULL INSPECTION - IN WATER

Lee Fulcher

1.0 ABSTRACT

This item describes the requirements to perform full underwater hull cleaning for an T-AKE class vessel. The work includes the removal of all marine growth and fouling from the hull and all appendages, as well as pre- and post-cleaning inspections. All work shall be performed in accordance with NSTM

Chapter 081.

2.0 REFERENCES/ENCLOSURES

2.1 References

2.1.1 NAVSEA Drawing No. 801- 7488890, Docking Plan

2.1.2 T9243-AX-MMC-010, Technical Manual, Shaft Seal, Stern Tube, Type MD

2.1.3 NASSCO Drawing No. 1.1262-1.1, Project Arrangement, Rudder

2.1.4 MSC Drawing. No. 802- 8387206, General Arrangement

2.1.5 NAVSEA Tech Pub No. S9086-HP-STM-010, NSTM Chapter

245, Propellers and Propulsors

2.1.6 NSTM Chapter 081, "Waterborne Underwater Hull

Cleaning of Navy Ships"

2.1.7 NAVSEA S0600-AA-PRO-170, "Underwater Ship Husbandry

Manual, Chapter 17, 'Inspections'"

2.2 Enclosure

2.2.1 Blade and Hub Inspection Forms

3.0 ITEM LOCATION/DESCRIPTION

3.1 Location/Quantity

3.1.1 Location: Underwater Hull

a. LOA: 210 m

b. LBP: 199.55 m

c. Beam at DWL: 32.2 m

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3.1.2 Quantity

a. One (1) Fixed-Pitch Propeller

b. One (1) Rudder

c. FOUR (4) Sea Chest Suction Grates

d. ONE (1) Reverse osmosis sea suction grating (Frame 75, starboard, Hull penetration 33)

e. One (1) External Stern Tube Shaft Seal

f. One (1) Rope Guard

g. One (1) Bow Thruster Fixed-pitch Propellor

3.2

3.2.1 Propeller

a. Diameter: 6.5 m

b. Number of Blades: Five

c. Pitch: 6.12 m

d. Propeller Material: Nickel Aluminum Bronze

e. Propeller Weight: 54,920 lbs

3.2.2 Rudder: See Reference 2.1.3 for details.

3.2.3 Sea Chest Suction Grates: See Reference 2.1.1

for details.

3.2.4 Stern Tube Shaft Seal

a. Stern Tube Shaft Seal Type MD, Wartsila Lips

4.0 GOVERNMENT FURNISHED EQUIPMENT/MATERIAL/SERVICE: None

5.0 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

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including but not limited to GTRs 1 through 7, 22, 23, 24, 28, and 29.

5.2 This ship contains high voltage (hv) electrical

systems. Obey all posted and verbal instructions regarding safety and exclusion from high voltage areas. At no time approach, work on, or enter a high voltage area without proper authorization.

5.3 The T-AKE class electrical color coding does not

follow the consistent color scheme. The ship is known to have current carrying conductors colored green, blue, black, and white. Assume all electrical cables are energized until tested and proven otherwise. Test all electrical cables to ensure they are de-energized prior to working on the item.

5.4 This task is normally performed in conjunction with an

Underwater Inspection in Lieu of Dry-docking Survey (UWILD) with the American Bureau of Shipping (ABS); however, the UWILD inspection is not included in this fixed rate task and would fall under the hourly rate tasks when specifically called out in a Task Order.

5.5 Period of performance / Location:

5.5.1 Commencement: 16 NOV 2026

5.5.2 Completion: 26 NOV 2026

5.5.3 Location: GUAM Pier: TBD

5.6 MSC Rep and Point of Contacts:

5.6.1 Port Engineer USNS SACAGAWEA (T-AKE 2):

LEE FULCHER

U.S. Navy's Military Sealift Command

471 East C Street, Bldg sp-47

Norfolk, VA 23511-2914

Office: 757-443-0966

Cell: 682-433-3191

Email: Lee.C.Fulcher.civ@us.navy.mil

5.6.2 Chief Engineer:

mailto:Lee.C.Fulcher.civ@us.navy.mil

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Mr. MARK MARINER

Chief Engineer

Mobile: 757-288-7339

Email: Mark.M.Marriner.civ@ake2.navy.mil

Generic Chief engineer Email:

master@ake2.navy.mil

5.6.3 Captain / Ships Master

Ty R. Penny, Master

USNS Sacagawea (T-AKE 2)

Unit 100497 Box 1

FPO AP 96678-9700

ty.r.penny.civ@ake2.navy.mil

OFFICE: 1-850-549-0299

RADIO: 1-850-549-0298

CELL: 1-757-835-9347

6.0 QUALITY ASSURANCE REQUIREMENTS:

6.1 Material Requirements: None

6.2 Qualification/Process Requirements: None additional

6.3 Inspection/Test Requirements:

6.3.1 Upon completion, 100 percent of the cleaned

underwater hull surface shall be visually inspected. The cleaned surface shall conform to

NSTM Chapter 081.

6.3.2 In the event propeller damage (e.g. erosion)

prohibits attaining a 'B' finish (as defined in

NSTM chapter 081), the MSCREP shall be contacted And Condition found report submitted via electronic PDF.

7.0 STATEMENT OF WORK REQUIRED

7.1 Clean, polish, and inspect the propeller and sea chest

suction grates identified in paragraph 3.1,

7.2 Clean and inspect the Entire underwater hull using

References 2.1.1 through 2.1.5 and Enclosure 2.2.1 as guidance.

Accomplish all tasks using IMO, SOLAS requirements as guidance.

mailto:Mark.M.Marriner.civ@ake2.navy.mil mailto:master@ake2.navy.mil mailto:ty.r.penny.civ@ake2.navy.mil

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7.3 Coordinate with ship's force to have associated

equipment locked and/or tagged out per ship's lock out/tag out policy. When the maintenance is complete, coordinate with ship's force to have associated equipment unlocked and/or tagged in per ship's lock out/tag out policy.

7.3.1 The ship's crew will be living aboard during

this evolution; therefore, saltwater cooling is required to maintain habitable conditions onboard. The vessel must have at least one sea suction (MMR high or MMR low) and the overboard discharge available.

7.4 Conduct a Pre-Dive Planning Meeting with the Diver's

Representative, Master, Chief Engineer and OMT REP. The meeting agenda and discussion covers, at a minimum:

7.4.1 Confirm there is no record or indication of

abnormal deterioration or damage to underwater body, propeller, rudder, stern frame, stern seal, underwater structure, or sea valves.

7.4.2 Discuss means of communication between the

Bridge, Dive Team, and Engine Room.

7.4.3 Discuss procedures/plans for emergencies.

7.4.4 Discuss the water clarity (visibility) and the

current cleanliness of the underwater hull. Determine if additional cleaning or spot cleaning will be necessary.

7.4.5 Discuss the vessel's anticipated drafts, pier-

side clearance, and under-keel clearance at the time of the cleaning.

7.4.6 Discuss impact of the tides and currents on

divers and the examination.

7.4.7 Discuss anticipated duration of the underwater

work.

NOTE: Clean all seal areas at the completion of work

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7.5 Completely remove all marine fouling from the entire

underwater hull; propeller(s) and dunce cap(s), bow thruster propellor and dunce cap(s), shaft(s), associated strut(s) and bearing housing(s) and rotating coupling cover(s) and fairwater(s) and rope guard(s); rudder(s); bilge keels, all gratings, screens, and splitter bars on hull penetrations, appendages; and stabilization systems (e.g. fins, auxiliary propulsion units, secondary propulsion motors).

7.5.1 The area along the ship waterline shall be

cleaned to a height of 12 inches above the waterline, based on the ship's draft during the cleaning operation.

7.5.2 Extreme caution shall be exercised by the

contractor to prevent damage to the coating and ship systems by any of its operations, procedures, or equipment.

7.5.3 Remove all sea growth includes, but is not

limited to: calcium deposits, sea grass, and barnacles. Cleaning must not result in damage to the equipment or hull. Utilize the following approved cleaning methods:

a. Hand-cleaning methods such as scraping, and the use of brushes and pads. Plastic or hardwood scrapers, nylon, and polypropylene brushes such as A-1 and A-2, and hand-held plastic conditioning pads such as Scotch-Brite G are acceptable for cleaning.

1. For all propeller surfaces: It is preferred that the final cleaning operation of propeller blade edges (within 3 inches) be cleaned by hand with plastic surface conditioning pads. Do not attempt to round the edges of the blades with brushes and discs.

b. Powered cleaning processes. Only nylon and polypropylene brushes such as A-1 and A-2, and non-abrasive plastic surface conditioning discs such as Scotch-Brite may be used with power tools on less sensitive areas. Do not remove markings.

1. For all propeller surfaces: Powered cleaning methods are not to be used within three inches of blade edges, tips, cusps, fillets (excluding hub to blade interface), areas of high curvature, or other sensitive areas of the propeller. When cleaning the outer periphery of the blades, the brushes and discs

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must be kept flat on the blade surface.

7.6 Conduct an inspection of the propeller, rope guards, rudder, shaft seals, sea chest suction grates and underwater hull to meet the manufacturer's design, installation, maintenance instructions and service bulletin requirements. Use

References 2.1.1 through 2.1.5 and Enclosure 2.2.1 as guidance.

Perform the following:

7.6.1 Examine all visible parts of the propeller.

Inspect the hub, blades, and blade edges for cracks, curling, porosity, cavitation erosion, nicks, dents, bends, cable marks, flat spots, ridges, punch marks, and gouges. Verify that the propeller is free of conditions that may cause the propeller to become out of balance.

7.6.2 Inspect Bow Thruster Propeller and Shafting as

follows:

a. Inspect the following underwater equipment for damage, fouling, roughness, loose or missing parts; propeller blades, hubs, propeller caps, devices, rope guards and fairwaters.

b. Remove any wire, rope, hose, cable, or any foreign material which may cause vibration and/or noise or damage to equipment being inspected.

7.6.3 Visually examine stern bearing and rope guards

for fishing nets, wire rope, and oil seal leaks.

7.6.4 Visually examine rudders for damage, missing

hardware, missing inspection plates, and wire rope.

7.6.5 Visually examine all sea chest suction grates

for damage, missing hardware, obstruction, and debris.

7.6.6 Visually examine the entire underwater hull for

fouling or damage. Record the location and extent, dimensions, etc. of any hull damage observed. This examination is also to include bilge keels, thrusters, rudders, shafting, seals, propellers, rope guards, rope cutters, transducers and appendages.

7.6.7 Submit photographs and a completed Enclosure

2.2.1 to the OMT REP detailing any observed damage or deficient conditions.

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7.7 Maintain workspaces in a clean condition during and

upon completion of the work requirements. Prevent contamination of any adjacent equipment and spaces.

7.8 Upon completion of all inspections and maintenance, return the propeller and sea chest suction grates to a ready for service condition.

7.9 Coordinate with ship's force to tag-in all required

systems and equipment.

7.10 Reports

7.10.1 When inspection, service and testing reveal

any deficiency a condition report is to be submitted to the

Contracting Officer and contacts listed in Section 5.6 with recommended repairs and parts required. Submit one electronic copy in Portable Document Format (PDF).

7.10.2 Submit a report that includes "as released"

condition of the propeller(s), rudders, shaft seals, rope guard(s), rope cutters, transducers, thrusters, sea chest grates and underwater hull. Submit one electronic copy in

Portable Document Format (PDF).

7.10.3 All reports and checklists are to be

completed and signed by the person who carried out the inspection and maintenance work and countersigned by the

Company's representative.

7.11 Painting

7.11.1 Prepare, prime, paint and restore all

new, soiled, and disturbed surfaces to match surrounding surfaces.

7.12 Manufacturer's Representative: None

7.13 Preparation of Drawings

7.13.1 Provide electronic copies of all revised

and/or updated technical documentation including drawings, technical manuals, service bulletins, parts lists, certification and test data associated with the work performed or parts supplied to the

OMT REP.

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8.0 Performance Standards: Services will be acquired under this contract as performance based in accordance with FAR

Subpart. The contractor shall be evaluated on its ability to provide quality service and deliverables in an efficient manner. Failure to meet a Performance Requirement Standard metric is a considered a major non-conformance that adversely impacts (or has the potential to) mission, safety of personnel and/or equipment, environment, performance

(quality), schedule (delivery), and/or cost. The government’s contracting officer will communicate major non-conformances to the contractor on a Contract Discrepancy

Report (CDR) form with a suspense date for the contractor’s corrective action plan.

Deliverable and/or

Service

Requirement

Measurement

/Metric

Performance

Standards

Performance

Threshold

Method of

Surveillance

Incentives

(Negative)

Section 7 Timeliness The contractor completes the assigned task within the time prescribed.

99% of the work is completed in accordance with the contract.

Contracting

Officer

Tracking and

Customer

Feedback

Unsatisfactory

/Poor

Performance will be documented in

CPARS.

1% of the contract value shall be deducted from the total firm fixed price for every one

(1) business day late, up to a maximum of 10% of the contract value.

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Section 7 Quality The contractor shall provide all complete and accurate deliverables.

No more than

3 errors per deliverable.

Customer

Review

Unsatisfactory

/Poor

Performance will be documented in

CPARS.

Deliverables received that have more than three (3) errors result in rejection of the deliverable as incomplete and returned to the

Contractor.

MSC shall not inspect the entire deliverable, rather MSC shall identify, if present, the first three errors and return the deliverable to the Contractor.

Errors shall be defined as transcription differences between markups and the final deliverable, as well as formatting errors.

Each time the deliverable is returned, 1% of the awarded Contract dollar value shall be deducted from the total price for each instance in which a deliverable is determined to be incomplete, up to a maximum (for all instances of returned documents) of 10% of the awarded contract dollar value.

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Combating

Trafficking in Persons

Compliance Contract requirements must meet the terms of FAR

52.222-50.

100% compliance required as per US Zero tolerance policy.

Periodic

Surveillance of the requirements of FAR

52.222-50

Non-conformance will be documented in

CPARS.

Corrective action to be implemented.

Inform

Employees of

Whistleblower

Rights

Compliance Contractor must meet the terms of

DFARS

252.203-

100% compliance required as per US Zero tolerance policy.

Periodic

Surveillance of the requirement s of DFARS

252.203-

Non-conformance will be documented in

CPARS.

Corrective action to be implemented.

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ENCLOSURE 2.2.1 BLADE AND HUB INSPECTION FORMS

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