Service difficulty report · Warning Message · Boeing 737890

Difficulty date
December 5, 2013
Submitted
December 9, 2013
Operation
Air carrier
Aircraft
N585AS
Make and model
Boeing 737890
Aircraft serial
35683
Aircraft time
24,238 hours, 7,359 cycles
Engine
Cfmint CFM567B27B3
Part
Warning Message
Condition
False Activation
Location
Engine
Stage of operation
IN
How discovered
O
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

INTERROGATE THE FMC CDU FOR ENGINE FAULT CODE 73-31372 FOR UPPER EGT SECTORS READING HIGH, RECORDED FOR ENG NR 2. THIS IS AN ECONOMIC FAULT. ACFT GROUNDED. ACCOMPLISH T/C 7827300, NO RECENT FAULTS NOTED. INPUT MONITORING SHOWS T495 S1=97.38, S2=38.82, S3=37.72, & S4=99.44. ABOUT ONE HOUR AFTER SHUTDOWN OF NR 2 ENGINE. ALSO ACCOMP EEC TEST, NO EEC FAULTS, REF FIM 73-11, TASK 801. GROUND VERIFICATION SUCCESSFUL.