Airworthiness Directive 87-21-02 R1
one-timeAD 87-21-02 R1 · 1987-01-01 · other
Airworthiness Directives; 401 401A 401B 402 402A 402B 402C 404 411 411A 414 414A 421 421A 421B 421C T303 T310P T310Q T310R Textron Aviation Inc.\310D Textro
Which aircraft AD 87-21-02 R1 applies to
Makes401 401A 401B 402 402A 402B 402C 404 411 411A 414 414A 421 421A 421B 421C T303 T310P T310Q T310R Textron \310D Textron \310E Textron \310F Textron \310G Textron \310H Textron \310I Textron \310J Textron \310J-1 Textron \310K Textron \310L Textron \310N Textron \310P Textron \310Q Textron \310R Textron \320 Textron \320A Textron
ModelsT303, T310P, T310Q, T310R
Whether AD 87-21-02 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 87-21-02 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.