Is AD 89-16-10 a recurring Airworthiness Directive?

No — AD 89-16-10 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 89-16-10 apply to?

AD 89-16-10 applies to Cessna — models 550. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 89-16-10

one-time

AD 89-16-10 · 1989-01-01 · appliance

Airworthiness Directives; and found to be free of cracks between the electrical connector receptacle and the end fitting base. Any transmitter having a crac

Which aircraft AD 89-16-10 applies to

MakesCessna

Models550

Transmitter (referenced via Cessna Service Bulletin SB550-73-2, dated February 10, 1989) inspected at intervals not to exceed 25 hours time-in-service for cracks between the electrical connector receptacle and end fitting base; any transmitter with a cracked fitting must be replaced prior to further flight.

Whether AD 89-16-10 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:

Method of compliance — The specific action taken (inspected, replaced, modified) and to what revision.

Date — When the work was done.

Aircraft time — Total time in service / tach at compliance — how recurring next-due is computed.

Signature & certificate — The A&P/IA who returned it to service, with certificate number.

Is AD 89-16-10 complied with on your aircraft?

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.

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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.