Service difficulty report · Engine · Saab 340B

Difficulty date
May 15, 2008
Submitted
May 16, 2008
Operation
Air carrier
Aircraft
N356CJ
Make and model
Saab 340B
Aircraft serial
340B356
Engine
Ge CT79B
Part
Engine
Part number
CT79B
Part serial
GEE785552
Condition
Overtemp
Location
Left
Stage of operation
CL
How discovered
O
Nature of condition
M, R, J
Precautionary procedure
E

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

What was found

DURING CLIMB AT APPROX 1000 FT, LT ENGINE MADE POPPING NOISES, CHECKED GAUGES SHOWED NO LEFT SIDE TORQUE, NP, OR OIL PRESSURE. NG WAS WITHIN GREEN ARC AND NORMAL. NEITHER LEFT SIDE BLEED WAS ON CTOT AND AOR WERE OFF. BEFORE REDUCING POWER ON PLS IS WHEN POPPING BEGAN ITT SHOWED 1010 WHEN SEEN, AND ACCOMPLISHED SHUTDOWN. PERFORMED DFDR DOWNLOAD TO DETERMINE TEMPERATURE EXCEEDANCE AND THRESHOLD. FDR CONFIRMED OVERTEMP EVENT REQUIRES ENGINE REPLACEMENT.

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