Is AD 05-7684 a recurring Airworthiness Directive?

Yes — AD 05-7684 requires a repetitive inspection. Next-due depends on the aircraft's time in service.

Which aircraft does AD 05-7684 apply to?

AD 05-7684 applies to Mcdonnell Douglas — models DC-8-50. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 05-7684

recurring

AD 05-7684 · 2005-04-21 · airframe

Airworthiness Directives; McDonnell Douglas Model DC-8-33 and -43 Airplanes; Model DC-8F-54 and DC-8F-55 Airplanes; and Model DC-8-50, -60, -60F, -70, and -70F Series Airplanes

What this AD requires

The FAA is superseding an existing airworthiness directive (AD), which applies to certain McDonnell Douglas series airplanes. That AD currently requires repetitive inspections of the electrical connectors of the explosive cartridge wiring of the engine fire extinguisher containers to verify if the identification number labels are installed and legible; repetitive electrical tests of all explosive cartridge wiring of the engine fire extinguisher containers to verify proper installation and function; and corrective actions if necessary. This new AD requires an inspection of the emergency shut off wire assembly; installation of lanyards on the electrical connectors for the engine fire extinguishing agent containers and for the auxiliary power unit fire extinguishing agent containers if applicable; and related investigative/corrective actions, as applicable. This AD is prompted by reports of cross-wired electrical connectors of the engine fire extinguishing agent containers. We are issuing this AD to detect and correct cross-wired electrical connectors of the fire extinguishing system, which could release fire extinguishing agent into the incorrect engine nacelle in the event of an engine fire.

Repetitive inspection. Re-inspect. The next-due date/hours depend on this aircraft’s time in service — a records report computes it from the logbooks.

Which aircraft AD 05-7684 applies to

MakesMcdonnell Douglas

ModelsDC-8-50

certain

Whether AD 05-7684 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 compliance — The specific action taken (inspected, replaced, modified) and to what revision.

Date — When the work was done.

Aircraft time — Total time in service / tach at compliance — how recurring next-due is computed.

Signature & certificate — The A&P/IA who returned it to service, with certificate number.

Is AD 05-7684 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.

Look up a tail number →Read the full directive (Federal Register)

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.