USNS MARY SEARS
T-AGS 65
Solic. NO.: MLL-16-T65-0001
HEATING, VENTILATION AND AIR CONDITIONING June29, 2016
ITEM NO.: 0802 CATEGORY “A” USMMI/MLL/RCS
REPAIR STAGING BAY RETURN AIR DUCTING
VR16-0043
1.0ABSTRACT:
1.1This work item describes the work required to repair the Staging Bay overhead return air ducting.
2.0REFERENCES/ENCLOSURERS:
2.1References:
2.1.1NAVSEA Technical Manual T9512-BE-MMO-010 Heating, Ventilation and Air Conditioning (HVAC) Units
2.2Enclosures: Photos
3.0LOCATION/DESCRIPTION:
3.1Location / Quantity:
3.1.1Staging Bay 1-109-1
3.1.2Quantity: One (1) Return Air Ducting
3.2Item Description / Manufacturer’s Data:
3.2.1Approximately 15 feet of sheet metal ducting
4.0USMMI FURNISHED EQUIPMENT/MATERIAL/SERVICES / INFORMATION:
4.1USMMI Furnished Equipment (USMMIFE): None
4.2USMMI Furnished Material (USMMIFM):
4.2.1Paint
4.3USMMI Furnished Services (USMMIFS):
4.3.1PPG Paint Representative
4.4USMMI Furnished Information (USMMIFI):
4.4.1Required drawings and manuals to be provided by the ship / USMMI Port Engineer
5.0NOTES:
5.1The Contractor and all Sub-contractors, 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 Sub-contractors regardless of tier must comply with the requirements of all applicable GTR's including but not limited to GTR's 1 through 7 and 21 through 29. GTRs can be retrieved from the Internet at the following URL:
5.2The Contractor and all Sub-contractors 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.
5.3The Contractor shall comply with all requirements of equipment tag out program as established by COMSCINST 3540.6, as amended, section 15.2.2, Engineering Operations and Maintenance Manual. The Chief Engineer is to administer the program. Prior to the start of work, the Contractor shall contact the USMMI Port Engineer and / or the Chief Engineer to coordinate the implementation of the Tag-Out Program for the entire performance period of this item. The Prime Contractor shall be responsible for compliance by both Prime and Sub-contractor personnel.
5.4Any additional work will require a Change Order (with costs associated) submitted to the Port Engineer for approval, before the additional work is performed.
6.0QUALITY ASSURANCE REQUIREMENTS:
6.1 All workmanship, materials and testing shall be in accordance with the latest ABS Rules for Building and Classing Steel Vessels and to the satisfaction of and in presence of the ABS Surveyor, Manufacturer’s Representatives, Port Engineer and MSCREP.
6.2Upon completion of work, the worksite will be inspected by the Chief Engineer and the designated On-site USMMI Representative (Port Engineer).
7.0STATEMENT OF WORK:
7.1Arrangement / Outfitting:
7.1.1Provide all material and special equipment to 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 work. Material, unless specifically stated as Maersk Line Limited Furnished Material, USMMIFM, shall be supplied by the Contractor.
7.1.2All areas involved in work or traversed by workmen or equipment shall be left clean and in good order.
7.1.3Chief Engineer will secure the ventilation system to ensure it is isolated and danger-tagged / locked-out prior to starting work.
7.1.4Contractor will need staging to access overhead ducting.
7.2Structural: None additional
7.3Mechanical/Fluid:
7.3.1The Contractor is to temporarily open up access covers.
7.3.2After all restoration and preservation work has been completed and approved by the PPG Representative; the contractor is to close up all temporary openings.
7.4Electrical:None additional
7.5Electronics: None additional
7.6Preparation of Drawings:
7.6.1One (1) hard copy and electronic copies of the Completion of Work Report describing all work that was performed, including the balancing documentation and photographs is to be provided to the Chief Engineer and the USMMI Port Engineer at and .
7.7Test / Inspections:
7.7.1The section of ducting which requires repair is to be inspected by the PPG Paint Representative initially, after mechanically cleaning, after application of the first coat, after application of the second coat and then after application of the top coat.
7.7.2All work will be completed to the satisfaction of the PPG Paint Representative and the On-Site USMMI Representative (Port Engineer).
7.8Painting:
7.8.1Duct assembly
7.8.1.1Mechanically Clean to SSPC-3.
7.8.1.2Apply one primer coat ofAMERLOCK SEALER 1-2 mil DFT
7.8.1.3Apply a second primer coat AMERCOAT 240 Buff 5-6 mils DFT
7.8.1.4Apply a top coat of AMERCOAT Gray5-6 mils DFT
7.9Markings: None additional
7.10Manufacturer’s Representative: None
8.0GENERAL REQUIREMENTS:
8.1The Contractor shall provide all labor, materials, staging and tools required to accomplish this specification, except as specified in Section 4.0.
8.2No additional work is to be accomplished without prior written approval by the Contracting Officer, Purchasing Manager or USMMI Port Engineer. The USMMI Contracting Officer, USMMI Purchasing Manager or USMMI Port Engineer is the only person authorized to give the contractor authorization to proceed with growth or new work. The USMMI Port Engineer is the single point of contact authorized to address technical questions.
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