Airworthiness Directive 69-26-06
one-timeAirworthiness Directives; polytetrafluoroethylene (teflon) dielectric type coaxial cables from just forward of the pressure dome feed-through throughout the
Which aircraft AD 69-26-06 applies to
Replace/insulate PTFE-dielectric coaxial cables in the tail compartment (add glass-fiber batt and silicone-wrap heat insulation) and add a metal heat shield between the eighth-stage pneumatic duct and electrical wire bundle in the tail cone, just aft of the pressure panel.
Whether AD 69-26-06 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.