Service difficulty report · Engine · Boeing 757222

Difficulty date
July 9, 1997
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N561UA
Make and model
Boeing 757222
Aircraft serial
26661
Engine
Pwa PW2037
Part
Engine
Part number
3800035114
Condition
Stalled
Location
Rt Engine
Stage of operation
DE
Nature of condition
Y
Precautionary procedure
E

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

What was found

DURING DESCENT, THE RIGHT ENGINE COMPRESSOR STALLED TWICE. AN IN FLIGHT SHUT DOWN OCCURRED. *S/D* FAILURE OF PRIMARY AND SECONDARY LVDT'S CAUSED EEC TO FAIL-SAFE THE STATOR VANE ACTUATOR, BECAUSE THE EEC WAS UNABLE TO DETERMINE SVA POSITION. FAIL-SAFE POSITION IS FULL OPEN OR THE HIGH POWER POSITION. WHEN POWER WAS REDUCED FOR DESCENT, THE ENGINE STALLED.