Airworthiness Directive 81-07-11 R1
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Which aircraft AD 81-07-11 R1 applies to
Inspect elevator balance weight support structure and horizontal stabilizer components at each 10-hour interval for chafing/wear; replace any defective parts found with airworthy parts of the same part number prior to further flight.
Whether AD 81-07-11 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:
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.