- Difficulty date
- July 20, 2016
- Submitted
- July 25, 2016
- Operation
- Air carrier
- Make and model
- Boeing 737890
- Aircraft serial
- 35190
- Aircraft time
- 32,790 hours, 10,045 cycles
- Part
- Nozzle
- Part number
- 1317M47G18
- Condition
- Failed
- Location
- Engine Fuel
- Stage of operation
- IN
- How discovered
- V
- 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
NR 1 ENGINE EEC LOGGED ECONOMIC FAULT 73-31371, UPPER EGT SECTORS READING HIGH. TEMP READINGS S1-130, S2-81, S3-92 S4-160. EGT CLEANING ACCOMPLISHED. ACFT GROUNDED. REPLACED UPPER 11 FUEL NOZZLES IAW T/C POWER PLANT-73CMPT-07267-2. NO FAULTS RECORDED DURING POST ENGINE RUN.