Airworthiness Directive 47-25-05
one-timeAirworthiness Directives; -3a grease to the unpainted aft end every 50 hours of operation. Since the aft end of the tube slides through a trunnion just aft
Which aircraft AD 47-25-05 applies to
Grease unpainted aft end of tail-control tube every 50 hours; inspect for pitting/scoring where the tube slides through the trunnion just aft of the wing spar.
Whether AD 47-25-05 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.