89MVA15004_00_A01.pdf

This is a Job Specification and associated test procedures for the accomplishment of SHIPALT YON-0123D, a barge conversion project for the U.S. Navy. The work involves drying dock and dry-berthing operations scheduled for completion by February 2, 2027, with a POP start date of September 28, 2026 and end date of April 30, 2027.

The scope encompasses comprehensive tank maintenance and system modifications for barge YON-285, including opening, ventilating, and rendering dry two fuel and lube oil tanks (225 gallons and 10 gallons respectively) for removal. Key requirements include piping inspections and alignment verification, welding of primary structure per specified standards with nondestructive testing, running air tests with zero allowable leakage, and load testing of newly fabricated load handling davits and cleats to safe working loads of 1,200 LBS and 27,000 LBS respectively. The work references multiple NAVSEA drawings and GSO specifications, requires compliance with 29 CFR 1915 Subpart B for gas-free operations, and mandates that waste disposal align with Japanese Environmental Governing Standards. Government-furnished materials include extensive structural steel components, piping, fasteners, and welding consumables detailed across a comprehensive material list. Three separate test procedures are included: Load Handling Davit Load Test (T.P. File 61111-3-100_26061D), Cleat Load Test (T.P. File 61111-4-100_26061C), and Diver Ladder Static Load Test (T.P. File 62312-2-100_26061A), each specifying acceptance criteria, test loads, and data recording requirements with final certification by LWC and S246 personnel.