Airworthiness Directive 91-03-08
one-timeAD 91-03-08 · 1991-01-01 · airframe
Airworthiness Directives; Learjet Model 31, 35/35A, 36/36A, 36/36A and 55/55B/55C Series Airplanes
Which aircraft AD 91-03-08 applies to
MakesLearjet
Models31, 35, 35A, 36, 36A, 55, 55B, 55C
Whether AD 91-03-08 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 91-03-08 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.
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.