Airworthiness Directive 89-23-04
one-timeAirworthiness Directives; AIRBUS INDUSTRIE Models A300, A310, and A300-600 Series Airplanes
Which aircraft AD 89-23-04 applies to
Certificated in any category; to prevent pitch trim runaway. For A310 and A300-600 series, replace trim switch with a serviceable unit with serial number 924 or higher per AMM 22-27-12.
Whether AD 89-23-04 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.
How AD compliance is recorded
A valid compliance record (14 CFR 43.9) states:
Tailplate reads a tail number’s logbooks and matches every applicable AD — including this one — to its compliance evidence, with recurring next-due dates computed.
Look up a tail number →Applicability is derived from the FAA directive corpus and is advisory, not a legal airworthiness determination. Compliance is established only from an aircraft’s actual records.