What should be documented when replacing an AD-related part?

What should be documented when replacing an AD-related part?

• A. Part number
• B. Serial number and date only
• C. Date and inspector ID only
• D. Part number, serial, lot numbers, date, and inspector ID, plus AD compliance

Answer: (D)

When you replace an AD-related part, you must capture complete identity and traceability along with proof of compliance. The best documentation includes the part number, serial number, and any lot or batch numbers to identify exactly which component was installed. It also records the installation date and the inspector ID who performed and signed off the work. In addition, you must show that the applicable Airworthiness Directive has been complied with—include the AD number (and revision, if applicable) and the date the compliance was completed. This combination ensures you can trace the specific part through the aircraft’s history and prove that the directive requirements were met, which is essential for ongoing airworthiness. The other options miss one or more of these critical elements, so they don’t provide the full, regulatory-acceptable record.

When you replace an AD-related part, you must capture complete identity and traceability along with proof of compliance. The best documentation includes the part number, serial number, and any lot or batch numbers to identify exactly which component was installed. It also records the installation date and the inspector ID who performed and signed off the work. In addition, you must show that the applicable Airworthiness Directive has been complied with—include the AD number (and revision, if applicable) and the date the compliance was completed. This combination ensures you can trace the specific part through the aircraft’s history and prove that the directive requirements were met, which is essential for ongoing airworthiness. The other options miss one or more of these critical elements, so they don’t provide the full, regulatory-acceptable record.