Airworthiness Directive 90-12-04 R1
one-timeAD 90-12-04 R1 · 1990-01-01 · airframe
Airworthiness Directives; -NM-43-AD. Revises AD 90-12-04, Amendment 39-6621 which superseded AD 88-01-08, Amendment 39-5827. \n Applicability: Model 757 ser
Which aircraft AD 90-12-04 R1 applies to
Makes-Nm-43-Ad Revises Ad 90-12-04 Amendment 39-6621 Which Superseded Ad 88-01-08 Amendment 39-5827 \N Applicability
Models757
Whether AD 90-12-04 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 90-12-04 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.