Revalidation of airworthiness release requires which elements?

• A. No action required
• B. Both proper corrective action or deferral
• C. Authorized mechanic's signature and employee or cert. number
• D. Proper corrective action or deferral

Answer: (B)

Revalidation of an airworthiness release centers on ensuring a maintenance issue is addressed so the aircraft remains airworthy. There are two approved paths to achieve that: you perform proper corrective action to fix the discrepancy, restoring the item to compliant condition, or you apply a deferral under the MEL with the appropriate limitations and documentation. Either route validly supports revalidation, since each ensures the release reflects that the aircraft is flyable within the approved conditions. The other options don’t capture this mechanism: no action is not acceptable because airworthiness must be maintained, and while a mechanic’s signature and certificate number are part of the release process, they describe who signs the release rather than how the revalidation itself is accomplished.