Airworthiness Directive 66-13-05
one-timeAirworthiness Directives; described in Vertol 107-2 Maintenance Manual, Chapter 16. This directive effective June 18, 1966. FOOTER: Columbia Helicopters, In
Which aircraft AD 66-13-05 applies to
Action described in Vertol 107-2 Maintenance Manual, Chapter 16; directive effective June 18, 1966.
Whether AD 66-13-05 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.