Airworthiness Directive 75-19-04
one-timeAirworthiness Directives; Appropriate maintenance records must be kept in accordance with FAR 91.173. This amendment becomes effective on September 17, 1975
Which aircraft AD 75-19-04 applies to
Appropriate maintenance records must be kept in accordance with FAR 91.173; amendment effective September 17, 1975.
Whether AD 75-19-04 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.