Service difficulty report · Sensor · Boeing 767323

Difficulty date
June 7, 2019
Submitted
June 11, 2019
Operation
Air carrier
Aircraft
N399AN
Make and model
Boeing 767323
Aircraft serial
29606
Aircraft time
75,581 hours, 12,572 cycles
Engine
Ge CF680C2B6
Part
Sensor
Part number
8901314
Part serial
WYG50641
Condition
Unreliable
Location
Cit
Stage of operation
AP
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

AIRCRAFT WAS GROUNDED: PILOT REPORTS TWO COMPRESSOR STALLS BELOW 500 WHILE ON APPROACH TO MIA . THE FIRST ONE FELT LIKE THE LEFT ENGINE THE SECOND ONE SOUNDED LIKE THE RIGHT ENGINE. MAINTENANCE TROUBLESHOT AND ACCOMPLISHED FIM TASK 71-05-00. REMOVED AND REPLACED THE L/H ENG & R/H CIT SENSOR IAW AMM 73-21-02. ACCOMPLISHED HIGH POWER ASSURANCE RUN AT ALL POWER SETTING IAW 71-00-00, ALL PARMETERS WERE NORMAL, NO EICAS MESSAGES NOTED. (SEE SDR # AALA201906089002)