Airworthiness Directive 64-08-04
one-timeAirworthiness Directives; 5980A or FAA approved equivalent. (Universal Aircraft Service Bulletin No. 14 covers the same subject.) This directive effective M
Which aircraft AD 64-08-04 applies to
Requires P/N 5980A or FAA-approved equivalent; Universal Aircraft Service Bulletin No. 14 covers the same subject. Directive effective May 11, 1964.
Whether AD 64-08-04 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.