SDR ASAA2016051816758

Service difficulty report · Warning Message · Boeing 737890

Difficulty date: May 18, 2016
Submitted: May 18, 2016
Operation: Air carrier
Aircraft: N588AS
Make and model: Boeing 737890
Aircraft serial: 35685
Aircraft time: 32,656 hours, 9,916 cycles
Engine: Cfmint CFM567B27
System (JASC): 7310 · Engine Fuel Distribution
Part: Warning Message
Condition: False Activation
Location: Cdu
Stage of operation: IN
How discovered: 9
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

WHILE ACCOMPLISHING TASK CARD 78273000, INTERROGATE THE FMC CDU FOR ENGINE FAULTS, FOUND MAINTENANCE MESSAGE 73-11372, UPPER EGT SECTORS READING HIGH, ECONOMIC FAULT LOGGED ON FLIGHT LEG 3 OF RECENT FAULTS. ACFT GROUNDED. ACCOMPLISHED FMC CDU BITE, NO CURRENT ACTIVE FAULTS. ELECTRONIC ENGINE CONTROL BITE PASSES, REF AMM 73-21-00.