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Airworthiness Directive 2007-23-16

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Official AD 2007-23-16 · FR doc E7-22304 · 2007-11-20 · airframe

Airworthiness Directives; Cessna Aircraft Company, Model 525B Airplanes

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for certain Cessna Aircraft Company (Cessna) Model 525B airplanes. This AD requires you to incorporate electrical power relay circuit protection kit part number (P/N) SB525B-24-02. This AD results from both the need to protect aircraft wiring left unprotected in the original design and a report of a Model 525B airplane experiencing in-flight loss of numerous systems, tripped circuit breakers, and burned wiring adjacent to the power distribution panel. We are issuing this AD to correct an incorrect wiring installation and to provide short-circuit protection for all wiring from the aircraft power distribution system. This condition could result in burned wiring and loss of various aircraft electrical systems.

Which aircraft AD 2007-23-16 applies to

MakesCessna Aircraft Company
Models525B, 525
Serial-conditional — narrows to serials 0001–0013.

Whether AD 2007-23-16 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 2007-23-16 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.