SON_-_GU_STBD_Propeller_Repair.pdf
PDF 113 KB Posted
- Attached to
- Propeller repair for NOAA Ship Gordon Gunter
- Solicitation number
- 1333MK25Q0088
About this file
This Statement of Need details requirements for professional underwater propeller repair for the NOAA Ship Gordon Gunter in Pascagoula, MS. The specific scope involves repairing a bent starboard propeller blade (#1 of 4 blades) with an approximately 8-foot diameter, which requires ABS-approved procedures and underwater repair while the vessel remains attached. Key requirements include providing a repair plan for ABS and NOAA review, taking pre- and post-repair measurements, ensuring propeller balance, and demonstrating repair success through reduced motor loading, elimination of blade cavitation, and vibration reduction.
Performance windows are limited to 10-12 May 2025 and 30 May-05 June 2025, with all work to be completed prior to 06 June 2026. The repair must be conducted by a professional underwater propeller repair firm with documented past performance and ABS approvals. The technical point of contact is Lucas Chapman from the GU Port Engineer's office, and the ship will be available for shipcheck between 25 June and 1 July. The vessel recently underwent dry dock and propeller polishing in April 2025, and will be underway from 13-29 May, which may impact repair and testing logistics.
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Other files
| File | Type | Posted |
|---|---|---|
| SCA_Poster_Required_for_all_Service_Contracts.pdf | ||
| Sol_1333MK25Q0088.pdf |
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Text version
STATEMENT OF NEED
for
MODS to NOAA SHIP GORDON GUNTER to
Repair Starboard Propeller
1.0 Purpose: This Statement of Need contains requirements for a professional propeller repair firm to repair subject propeller while attached to vessel, underwater, in Pascagoula, MS. Vessel is ABS classed and procedures and repair must be approved by ABS and NOAA. Vendor must have approvals prior to performing work. Contractor must be firm with documented past performance performing similar repairs and with ABS approvals. NOAA will fund ABS separately for review and for inspection.
2.0 References:
2.1.1 Google Drive stored dive video depicting bent blade.
3.0 Government Furnished Material: None additional.
4.0 Requirements:
4.1 Procure the services of a professional underwater propeller repair firm with ABS approvals to straighten bent propeller blade. #1 blade (of four total), propeller diameter is approximately 8 feet.
4.2 Provide repair plan for review by ABS and NOAA as soon as practicable, prior to work start. Approval of procedure is required prior to start of work on vessel.
4.3 Repairs to be performed in Pascagoula, MS.
4.4 Successful completion of complete repair will demonstrate reduced motor loading, elimination of sporadic blade cavitation, elimination of propeller “sing,” and elimination of current (newly developed) measured shafting/electric motor vibration frequency experienced while underway.
4.5 The Contractor will take and provide measurements prior to repairs, and post repairs of subject blade and undamaged blades on same propeller prior to any testing. Measurements and Readings to be provided immediately after being taken. Measurements post repair must demonstrate successful and complete repair.
4.6 Contractor to polish as necessary, take note that the vessel just came from dry dock, where propellers were polished, and propellers were inspected and cleaned again in later April 2025.
4.7 Contractor to ensure propeller balance.
4.8 Vessel may or may not be able to have an underway prior to 06 June to test repaired propeller. Ship will be underway 13 May through 29 May.
5.0 Period of Performance:
5.1 10May through 12 May2025, and 30May through 05June2025 are the available windows for any inspections and repairs. All work must be completed prior to 06June2026
6.0 Notes
6.1 Technical POCs
6.1.1 GU Port Engineer - Lucas Chapman lucas.chapman@noaa.gov, 301- 346-5421
6.2 Shipcheck Dates - Ship is available for shipcheck between 25 June and 1 July.
End of Statement of Need mailto:lucas.chapman@noaa.gov
File details come from the government source that posted it. Updated .