Airworthiness Directive 69-26-06

one-time
AD 69-26-06 · 1969-01-01 · airframe

Airworthiness 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

ModelsDC-9

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:

Method of complianceThe specific action taken (inspected, replaced, modified) and to what revision.
DateWhen the work was done.
Aircraft timeTotal time in service / tach at compliance — how recurring next-due is computed.
Signature & certificateThe A&P/IA who returned it to service, with certificate number.
Is AD 69-26-06 complied with on your aircraft?

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.

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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.