Maintenance Records and Documentation
Core concepts
Records provide the traceability that makes airworthiness verifiable. Candidates must understand what must be recorded: work performed, approved data used, parts and materials installed with traceability, personnel who performed and certified the work, dates, and results of inspections and tests. Know the difference between permanent records (often retained for the life of the aircraft or a long defined period) and transient/operational records. Understand how logbooks, task cards, work orders, and release certificates interrelate, and why corrections must be made by dated, signed entries rather than erasure. Also know the requirements for recording airworthiness directive compliance and life-limited part status.
Traps in questions
A common trap is accepting a parts traceability document that lacks a clear link to the installed component. Another is treating a missing signature as a clerical issue; it is a compliance issue affecting release validity. Questions may suggest that records can be reconstructed from memory or that electronic records need no backup or access controls. Watch for confusion between recording that a task was done versus recording the result and the data used.
Worked example / rule of thumb
Rule of thumb: If it is not recorded, it did not happen. Worked example: a component is replaced during a check. The record must identify the part number and serial number, the traceability document, the approved data, the date, and the certifying person. If the entry is later found to contain an error, correct it with a dated, signed correction that preserves the original entry, not by overwriting.