SDR DXTA2009021603506

Service difficulty report · Unknown · Cessna 750

Difficulty date: February 14, 2009
Submitted: February 17, 2009
Operation: Air carrier
Aircraft: N955QS
Make and model: Cessna 750
Aircraft serial: 7500055
Aircraft time: 9,512 hours, 5,962 cycles
System (JASC): 2120 · Air Distribution System
Part: Unknown
Condition: Odor
Location: Cockpit
Stage of operation: CR
How discovered: O
Nature of condition: B
Precautionary procedure: O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

INFLIGHT, DURING DESCENT WITH APU RUNNING, PASSING 14,000 FT, HAD SMOKE ODOR IN COCKPIT. CLEANED AND LUBRICATED POPPET VALVES. VALVES ARE MOVING FREELY AND NO LONGER STICKING. REINSTALL COALESCER SOCK AND CLOSED WATER SEPARATOR IAW MM 21-51-00. OPERATION WITH EACH INDIVIDUAL SOURCE WAS NORMAL AND NO SMOKE ODOR WAS NOTED.

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