Vehicle or fleet reference and individual vehicle where relevant: Assembly, installation position and intended maintenance work: Installed part markings and labelled photographs: Part number, drawing number, revision and release status: Linked assembly list, specifications and governing order baseline: Modification references, affected vehicles and recorded completion: Known differences, unavailable records and questions still open: Proposed replacement identity, revision, source and differences: Required evaluation, document scope and technical decision owner: Decision reference, permitted scope and any concession limits: Quantity, destination, timing, identification and receiving records: Please distinguish applicability, proposed supply and authorization for use. Do not infer a replacement from shape or the latest drawing date alone.