To determine the expiration date of the last annual aircraft inspection, a person should refer to which records?

• A. Aircraft maintenance records
• B. Flight log
• C. Airworthiness directive
• D. Manufacturer's letter

Answer: (A)

The date of the last annual inspection is found in the aircraft’s maintenance records. These records are the official file that documents every inspection, maintenance action, and the signatures of the qualified person who performed the work. The annual inspection date is entered there, along with any notes or conditions found, and it serves as the authoritative reference for when the next annual is due.

Flight logs track flight activity, not required inspections. Airworthiness directives are specific regulatory items that may require compliance by certain dates or conditions, but they don’t record when the last annual took place. A manufacturer's letter may provide service recommendations or bulletins, but it does not serve as the official record of the inspection date.