24 JUNE 2025.pdf

This is an Engineering Memorandum for manufacturing new LET (Lifting, Elevation, Transportation) boxes for a federal contract. The document details specifications for producing 06 new LET boxes to be used in the Delta Pier drydock, with each box having a capacity of 3,800 lbs. Key manufacturing requirements include:

Each padaye (box) must be rated to a Safe Working Load (SWL) of 1,900 lbs, with static weight test requirements of 200% of the SWL. Welding specifications mandate MT (Magnetic Testing) inspection prior to weight testing, with no structural deformation allowed. A permanent label plate with a unique identification number must be attached to each LET box, including details such as box capacity, test load, and identification numbers. The manufacturing process requires a controlled work package to produce and weight test the LET boxes, with specific inspection and documentation protocols to ensure quality and traceability.