What was found
NR 1 ENGINE, SN 894851, SHOWS ECONOMIC FAULT CODE 73-31371, UPPER EGT SECTORS READ HIGH. ACFT GROUNDED. INTERROGATED THE FMC CDU FOR ENGINE FAULTS, BOTH ENGINES OPS NORMAL. NO RECENT FAULTS OR FAULT HISTORY FOUND.
- Difficulty date
- February 22, 2016
- Submitted
- February 26, 2016
- Operation
- Air carrier
- Aircraft
- N584AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35682
- Aircraft time
- 32,722 hours, 9,753 cycles
- Engine
- Cfmint CFM567B27B3
- System (JASC)
- 7700 · Engine Indicating System
- Part
- Warning Message
- Condition
- False Activation
- Location
- Nr 1 Engine
- 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.