Airworthiness Directive · Amendment 39-15262 · Cessna Aircraft Company, Model 525B Airplanes
Cessna Aircraft Company, Model 525B Airplanes
This AD applies to Model 525B, serial numbers 0001 through 0013 airplanes, that are certificated in any category.
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.
To address this problem, you must do the following, unless already done:
| Actions | Compliance | Procedures |
|---|---|---|
| Incorporate electrical power relay circuit protection kit part number SB525B-24-02 | At whichever of the following occurs first: (1) Within the next 30 days after December 19, 2007 (the effective date of this AD); or | Follow Cessna Citation Service Bulletin SB525B-24-02, Revision 1, dated October 4, 2007. |
| (2) Within the next 10 hours time-in-service after December 19, 2007 (the effective date of this AD). |
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
