SDR IXXA20120813021O

Service difficulty report · Duct · Doug DC872F

Difficulty date: August 13, 2012
Submitted: August 15, 2012
Operation: Air carrier
Aircraft: N721CX
Make and model: Doug DC872F
Aircraft serial: 46013
Aircraft time: 93,499 hours, 23,444 cycles
Engine: Ge CFM562C
System (JASC): 2120 · Air Distribution System
Part: Duct
Condition: Contaminated
Location: Cabin Air
Stage of operation: TX
How discovered: O
Nature of condition: C, B
Precautionary procedure: O

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

What was found

ON ENGINE START, A HOT MUSTY ODOR WAS PRESENT IN THE COCKPIT. AFTER ALL FOUR ENGINES WERE STARTED, THE ODOR EVENTUALLY WENT AWAY. REMOVED, CLEANED AND REINSTALLED AIR DUCTS IAW MM 20-11-0. PERFORMED ENGINES RUN UP AT GROUND IDLE. OPS AND LEAK CHECKED GOOD IAW 70-01.

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