Service difficulty report · Sensor · Boeing 737890

Difficulty date
February 3, 2017
Submitted
February 7, 2017
Operation
Air carrier
Aircraft
N584AS
Make and model
Boeing 737890
Aircraft serial
35682
Aircraft time
36,090 hours, 10,761 cycles
Engine
Cfmint CFM567B27B3
Part
Sensor
Part number
3404022010
Part serial
894851
Condition
Failed
Location
Nr 1 Engine
Part time
36,522 hours, 10,868 cycles
Stage of operation
IN
How discovered
O
Nature of condition
O
Precautionary procedure
K

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

What was found

NR 1 ENGINE HAD A LONG TERM FAULT 73-20811 THE T12 SIGNAL IS OUT OF RANGE. ACFT GROUNDED. REMOVED & REPLACED T12 SENSOR, REF AMM 73-21-05. EEC GROUND TEST PASSED, ENGINE RUN CONFIRMS NO FAULT ON FLIGHT LEG 0.