Airworthiness Directive 88-21-01 R1
one-timeAD 88-21-01 R1 · 1988-01-01 · airframe
Airworthiness Directives; Mitsubishi Model MU-2B, MU-2B-10, -15, -20, -25, -26, -26A, -30, -35, -36, -36A, - 40, and -60 Series Airplanes
Which aircraft AD 88-21-01 R1 applies to
MakesMitsubishi
ModelsMU-2B, MU-2B-10, 60
Whether AD 88-21-01 R1 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 88-21-01 R1 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.