The most authoritative answer in 2024
-

-
Samuel Carter——Works at Twitter, Lives in San Francisco. Graduated from Stanford University with a degree in Computer Engineering.
An
airworthiness directive (commonly abbreviated as AD) is a notification to owners and operators of certified aircraft that a known safety deficiency with a particular model of aircraft, engine, avionics or other system exists and must be corrected. ... Thus, it is mandatory for an aircraft operator to comply with an AD.
read more >>
About “airworthiness directive、airworthiness directive、airworthiness directive”,people ask:
QuesHub is a place where questions meet answers, it is more authentic than Quora, but you still need to discern the answers provided by the respondents.