Where is the record of compliance with Airworthiness Directives or manufacturers' service bulletins normally indicated?

• A. Pilot logbook
• B. Aircraft maintenance records
• C. Purchase Invoices
• D. Registration

Answer: (B)

Compliance with Airworthiness Directives and manufacturers’ service bulletins is recorded in the aircraft’s maintenance records. ADs are mandatory actions issued by the aviation authority to address unsafe conditions, and once completed, the details—AD number, date of compliance, work performed, and the technician or shop—are logged to prove the aircraft remains airworthy. Manufacture’s service bulletins, when applicable, are likewise documented in maintenance records to show what was done and when. The pilot logbook tracks flight time, not maintenance or airworthiness actions. Purchase invoices show parts and costs but not the formal maintenance compliance. Registration is about ownership, not maintenance status. So the maintenance records provide the official, traceable record of AD and SB compliance.