SDR ASAA2015121014217

Service difficulty report · Warning Message · Boeing 737890

Difficulty date: December 10, 2015
Submitted: December 14, 2015
Operation: Air carrier
Aircraft: N559AS
Make and model: Boeing 737890
Aircraft serial: 35178
Aircraft time: 34,439 hours, 10,298 cycles
Engine: Cfmint CFM567B27
System (JASC): 7700 · Engine Indicating System
Part: Warning Message
Condition: False Activation
Stage of operation: IN
How discovered: 9
Nature of condition: N
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, FOUND FAULT CODE 73-31371, UPPER EGT SECTORS READING HIGH FOR NR 1 ENGINE, ACFT GROUNDED. ACCOMPLISHED FIM 73-11, TASK 801 AND THE MAINTENANCE MESSAGE IS NO LONGER ACTIVE IN CURRENT FAULTS OR FAULT HISTORY LAST TEN FLIGHT LEGS.