DRAFT PWS _ TAO205-BLADE REFURBISHMENT.pdf

DRYDOCKING Sources Sought N102C_12122024

ITEM NO. 0906 CATEGORY "A" 2024-12-12

TAO205-CSI-PROPELLER SYSTEM

MAINTENANCE (2.5 YR) (SCSI)

Donovan, Brendan

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1.0 ABSTRACT

The purpose of this item is to accomplish the RRMNA revision 3 modification procedure repairs to four CPP blades, turnover to MSC and provide CPP blade bolts.

PoP: 17 January 2025 – 14 February 2025

2.0 REFERENCES

2.1 Tech Manual T9243-BB-MMC-010, Shaft and Propeller

Controllable Pitch, Model: CPP164A/4D-B-G, Vol. 1

Chapters 1-3

2.2 NAVSEA Drawing No. 243-8723895, Shaft Arrangement

2.3 NAVSEA Tech Manual S9086-HP-STM-010, NSTM Chapter 245, Propellers and Propulsors

2.4 RRMNA-CPP-SB-24-008 Rev 3

2.5 USNS John Lewis (T-AO 205) Vessel Status Report

3.0 ITEM LOCATION/DESCRIPTION

3.1 Location/Quantity

3.1.1 Location: Contractor’s facility

3.1.2 Quantity: Four (4) CPP Blades

3.2 Item Description/Manufacturer’s Data

3.2.1 Blade Serial Number: 6001

a. Weight: 5157 kg

b. Port: 1A

3.2.2 Blade Serial Number: 6002

a. Weight: 5139 kg

b. Port: 3C

TAO205-CSI-PROPELLER SYSTEM

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3.2.3 Blade Serial Number: 6003

a. Weight: 5139 kg

b. Port: 2B

3.2.4 Blade Serial Number: 6004

a. Weight: 5146 kg

b. Port: 4D

3.3 Contractor Furnished Material (CFM): Contractor shall

provide all required material to accomplish this performance work statement to include but not limited to the following;

3.3.1 QTY 64 Propeller Blade Bolts Part No. R518926B

4.0 GOVERNMENT FURNISHED EQUIPMENT/MATERIAL/SERVICE:

4.1 Government Furnished Equipment (GFE):

4.2 Government Furnished Material (GFM): Four (4) CPP

Blades

4.3 Government Furnished Service (GFS): None

4.4 Government Furnished Information (GFI): 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 including but not limited to GTRs 1 through 7, 22, 23, 24, 28, and 29.

6.0 QUALITY ASSURANCE REQUIREMENTS:

TAO205-CSI-PROPELLER SYSTEM

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6.1 All work shall be accomplished in accordance OEM and

ABS approved procedures, rules and regulations.

7.0 PERFORMANCE WORK STATEMENT

7.1 Provide industrial support, OEM material, and the

services of an OEM authorized field service representative to inspect, repair, clean, and polish the port CPP blades and return the blades to the USNS Harvey Milk at Alabama Shipyard.

All work shall be accomplished under the direct supervision of an authorized manufacturer’s field service engineer on units identified in section 3.0.

7.2 Clean and buff CPP blades to bright metal. Clean CPP

blade bolts.

7.2.1 Visually inspect and accomplish NDT to check

and examine all components for cracks and defects using

References 2.1 and 2.3 for guidance. Pay attention to Palms, bolt holes/recesses, blade roots, and blade edges. Submit condition report to MSC detailing results of inspection and non-destructive testing.

7.2.2 Machine the base of ALL CPP blade flanges/palms

and holes to bring them back to like new in service condition.

a. For bidding purposes, assume that all surfaces of the blade palms, all eight (8) bolt holes and counter bores, will need up to .020” machined.

7.2.3 Repair all minor nicks, burrs, and cracks in

accordance with manufacturer’s requirements. Include in estimate that five minor repairs (assume less than 8 inches long X 2 inches wide) per CPP blade will have to be accomplished. Submit a copy of ABS approved repair procedures and welder's qualifications to MSC and ABS attending surveyor. Repairs to be accomplished by an OEM repair facility.

a. Known repairs required to the blades requiring repair due to porosity in excess of the ABS Rules in Zone A of the bolt hole pockets are as follows;

b. Port Propeller Blade No. 6001;

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1. Blade Bolt Hole HP-8, linear indication

0.265 inch in length

c. Port Propeller Blade No. 6002;

1. Blade Bolt Hole HP-6, rounded indication

0.30 inch in length

2. Blade Bolt Hole HP-7, linear indication 0.46 inch in length

3. Blade Bolt Hole LP-3, linear indication 0.26 inch in length

4. Blade Bolt Hole LP-2, aligned rounded indications 0.60 inch in length

7.2.4 After repairs and final dye check, grind and

fair up blades to original contour.

7.3 Provide qty 64 CPP blade bolts to MSC as identified in

paragraph 3.3.1.

7.3.1 Blade bolts are to be modified in accordance

with reference 2.4 prior to delivery of the bolts.

7.4 Contractor shall deliver back to the government fully

certified blades ready for installation with appropriate documentation, paperwork and certificates.

7.5 Upon satisfactory repairs, crate and ship blades and

blade bolts marked for the USNS Harvey Milk to Alabama Shipyard:

7.5.1 Alabama Shipyard, LLC

660 Dunlap Drive, Mobile, AL 36602

8.0 GENERAL REQUIREMENTS: None additional