SDR MALA020353

Service difficulty report · Engine · Saab 340B

Difficulty date
June 15, 2002
Submitted
June 20, 2002
Operation
Air carrier
Aircraft
N457XJ
Make and model
Saab 340B
Aircraft serial
340B457
Engine
Ge CT79B
Part
Engine
Condition
Malfunctioned
Location
Right
Stage of operation
AP
How discovered
O
Nature of condition
R, J
Precautionary procedure
L

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

What was found

DURING APPROACH OF FLIGHT 3326, RH ENGINE POWER SURGE. UNCOMMANDED TORQUE POWER SURGES OF 15 PERCENT ON RT ENGINE DURING CRUISE FLIGHT AT 60 PERCENT TORQUE. THIS WAS AN ACTUAL POWER SURGE WITH AN ASSOCIATED YAW. AC LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED CTOT PANEL. ALSO SHOTGUNNED AT THE TIME WERE: HUM, PCU, PROP OVERSPEED GOV., FWD NP SENSOR, LEFT SIDE OF ENGINE WIRE HARNESS, ALT. AND STATOR.

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