AD 2013-08-05 Cessna 525 Air conditioning compressor motors

We are adopting a new airworthiness directive (AD) for certain Cessna Aircraft
Company (Cessna) Model 525 airplanes equipped with certain part number (P/N) air conditioning
(A/C) compressor motors. This AD was prompted by reports of smoke and/or fire in the tailcone
caused by brushes wearing beyond their limits on the A/C motor. This AD requires inspection of the
number of hours on the A/C compressor hour meter, inspection of the logbook, replacement of the
brushes on certain P/N A/C compressor motors or deactivation of the A/C system until replacement
of the brushes, and reporting of airplane information related to the replacement of the brushes. We
are issuing this AD to correct the unsafe condition on these products.