HSC-3 Plane Captain Practice Test 2026 – Your All-in-One Guide to Exam Success!

The Plane Captain is the only designated individual who can sign for an A-sheet. The A-sheet, or Aircraft Maintenance Record, is an essential document that provides a comprehensive log of all work and maintenance performed on an aircraft. It ensures accountability and traceability in aircraft maintenance operations. The Plane Captain, who is usually an experienced sailor with extensive knowledge of the aircraft and its systems, takes on significant responsibility regarding the aircraft's condition and performance. As part of their duties, they are authorized to certify that the maintenance actions outlined in the A-sheet have been completed satisfactorily.

While other roles, such as the Systems Engineer, Maintenance Chief, and Quality Assurance Inspector, contribute to the overall maintenance and safety process, they do not possess the specific designation that allows them to sign off on this critical document. Each of those individuals has distinct roles that complement the work done by the Plane Captain, but the authority to sign for the A-sheet is a specially defined responsibility belonging to the Plane Captain.