Service difficulty report · Sensor · Boeing 737990ER

Difficulty date
February 13, 2023
Submitted
March 20, 2023
Operation
Air carrier
Aircraft
N477AS
Make and model
Boeing 737990ER
Aircraft serial
40716
Aircraft time
27,365 hours, 8,498 cycles
Part
Sensor
Part number
5058631
Part serial
GJB46618
Condition
Out Of Range
Location
#2 Engine
Part time
27,762 hours, 2,853 cycles
Stage of operation
IN
How discovered
V
Nature of condition
J
Precautionary procedure
K

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

What was found

WHILE ACCOMPLISHING ASA T/C 78273000 FOUND LONG TIME FAULT ON #2 ENGINE. "T3 SIGNAL IS OUT OF RANGE" MESSAGE # 75-10832. GROUNDED - YES. REPLACED THE T3 SENSOR REF B737-900 FIM 75-33 TSK 802 AND B737-900 AMM 73-21-07.