Airworthiness Directive 90-08-13
one-timeAirworthiness Directives; BOEING Model 767 Series Airplanes
Which aircraft AD 90-08-13 applies to
Model 767 series airplanes as listed in Boeing Alert Service Bulletin 767-21A0074, dated July 13, 1989 (or as later revised). Relates to equipment/lavatory/galley ventilation fan wire bundles along the frame assembly at station 1540.
Whether AD 90-08-13 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:
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.