SDR 95UAL737075

Service difficulty report · Compressor · Boeing 737322

Difficulty date: May 24, 1995
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N342UA
Make and model: Boeing 737322
Aircraft serial: 24246
Engine: Ge CFM56*
System (JASC): 7230 · Turbine Engine Compressor Section
Part: Compressor
Condition: Failed
Location: Nr 1 Engine
Stage of operation: CR
Nature of condition: J
Precautionary procedure: A

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

What was found

CREW REPORTS, HEARD LOUD BANG AND NUMBER ONE ENGINE N2 STARTED TO DECREASE, CREW SHUTDOWN ENGINE. ENGINE FAILED AT 31,000 FEET, SAW EXHAUST GAS TEMPERATURE SPIKED FOR A SHORT TIME. REPLACED ENGINE, SHOP FINDINGS SHOWED THIRD STAGE COMPRESSOR FAILURE CAUSED BY A THIRD STAGE VARIABLE STATOR VANE.