The Contractor shall, when required, evaluate and review technical source data for weapon systems/equipment, such as engineering drawings, engineering change proposals, technical data packages, maintenance plans, logistics support plans, Interim Manual Change Releases, and Interim Rapid Action Changes, for technical accuracy and adequacy for incorporation into the applicable weapon systems/equipment operation and maintenance TMs. The Contractor shall provide on-site technical support to operating units, commands and shore-based industrial activities to analyze and identify weapon systems/equipment discrepancies in the operation and maintenance procedures contained in the most current versions of TMs for weapon systems/equipment; compare performance of actual weapon systems/equipment operation and maintenance procedures against the operation and maintenance procedures documented in these weapon systems/equipment TMs.