SDR ASAA2017083021760

Service difficulty report · Fault Message · Boeing 737890

Difficulty date: August 30, 2017
Submitted: September 5, 2017
Operation: Air carrier
Aircraft: N569AS
Make and model: Boeing 737890
Aircraft serial: 35184
Aircraft time: 39,917 hours, 12,245 cycles
Engine: Cfmint CFM567B27
System (JASC): 7320 · Fuel Controlling System
Part: Fault Message
Part number: UNKNOWN
Condition: Unknown
Location: Unknown
Stage of operation: IN
How discovered: 9
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 T/C 78273000, A MESSAGE FOR THE RT ENGINE, 75-20802 (T25 SIGNALS DISAGREE) SHORT TIME FAULT. ACFT GROUNDED. PERFORMED FIM 75-33 TASK 805, CHECKED RESISTANCE AT THE T 25 SENSOR. RESISTANCE CHECKED GOOD. CHECKED WIRING FROM CONNECTOR DP0909 TO DP 0910, WIRING CHECKED GOOD. CHECKED WIRING FROM CONNECTOR 1010 TO 1009, WIRING CHECKED GOOD. PERFORMED AN EEC TEST. EEC TEST PASSED, NO FAULTS NOTED IAW AMM 73-21-00.