Airworthiness directives › 2013-08-05
AD 2013-08-05 Airworthiness Directives; Cessna Aircraft Company Airplanes
Makes named: cessna. Models named: 525. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Cessna Aircraft Company Model 525 airplanes, serial number (S/N) 525-0001 through 525-0558 and 525-0600 through 525-0701, that (1) are equipped with part number (P/N) 1134104-1 or 1134104-5 air conditioning (A/C) compressor motor; and (2) are certificated in any category.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Within the next 30 days after May 30, 2013 (the effective date of this AD) or within the next 10 hours time-in-service (TIS) after May 30, 2013 (the effective date of this AD), whichever occurs first, do the following: (1) Inspect the number of hours on the A/C compressor hour meter; and (2) Check the airplane logbook for any entry for replacing the A/C compressor motor brushes with new brushes or replacing the compressor motor or compressor condenser module assembly (pallet) with a motor or assembly that has new brushes. (i) If the logbook contains an entry for replacement of parts as specified in paragraph (g)(2) of this AD, determine the number of hours on the A/C compressor motor brushes by comparing the number of hours on the compressor motor since replacement and use this number in paragraph (h) of this AD; or (ii) If through the logbook check you cannot positively determine the number of hours on the A/C compressor motor brushes as specified in paragraph (g)(2)(i) of this AD, you must use the number of hours on the A/C compressor hour meter to comply with the requirements of this AD and use this number in paragraph (h) of this AD or presume the brushes have over 500 hours TIS.
Unsafe condition
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. We are issuing this AD to require replacement of the brushes on certain P/N A/C compressor motors or deactivation of the A/C system until replacement of the brushes. This AD also requires reporting of airplane information related to the replacement of the brushes.
Affected ADs
None.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1