Service difficulty report · Sensor · Boeing 7374B7

Difficulty date
August 5, 2013
Submitted
August 8, 2013
Operation
Air carrier
Aircraft
N440US
Make and model
Boeing 7374B7
Aircraft serial
24811
Aircraft time
60,233 hours, 41,112 cycles
Part
Sensor
Part number
8901274
Part serial
WYG59933
Condition
Faulty
Location
Engine
Part time
52,178 hours, 36,365 cycles
Stage of operation
DE
How discovered
O
Nature of condition
R
Precautionary procedure
O

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

What was found

ON DESCENT OUT OF 23,000 FT, AUTO THROTTLES PULLED THROTTLES TO IDLE. UPON REACHING IDLE, ONE OF THE ENGINES COMPRESSOR STALLED. ALL ENGINE INDICATIONS WERE NORMAL AFTER EVENT. YAW WAS FELT ALONG WITH A BANG. MOC AND PILOT CONFERENCED THAT LT ENGINE STALLED. BOROSCOPED LT ENGINE IAW JOB CARD 03L50672005. R & R CIT SENSOR IAW AMM 71-00-00. TROUBLESHOT IAW AMM 71-00-43.

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