What is revision control and why is it critical in AMQS documentation?

• A. Revision control tracks changes, ensures only current approved versions are used, and preserves historical data for audits and traceability.
• B. Revision control is a backup of weather data.
• C. Revision control automatically deletes old docs after 24 hours.
• D. Revision control stores only the latest revision with no history.

Answer: (A)

Revision control is the systematic management of changes to documents over time, capturing who made a change, when it was made, why, and labeling each edition with a version or revision number. In AMQS documentation, this is essential because airworthiness and quality systems require that only current, approved procedures and records are used in operations, audits, and regulatory reviews. Revision control ensures that the active document is the latest approved one, while also preserving the historical record so you can trace exactly what changed, when, and by whom. This traceability supports investigations, root-cause analysis, and compliance with aviation standards, since auditors can verify the evolution of a document and the justification for each update. It also allows safe rollback if a revision introduces issues, without losing the past context. This is not about backing up weather data, not about auto-deleting old documents, and not about storing only the latest revision with no history.