- Difficulty date
- July 10, 2017
- Submitted
- July 13, 2017
- Operation
- Air carrier
- Make and model
- Boeing 737890
- Aircraft serial
- 35188
- Aircraft time
- 38,692 hours, 11,658 cycles
- Engine
- Cfmint CFM567B27
- Part
- Engine
- Condition
- Fault Message
- Location
- Nr 1
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PERFORMED TASK CARD 78273000 AND FOUND FAULT CODE 77-20861 ON NR 1 ENGINE. AIRCRAFT GROUNDED. CONFIRMED FAULT, NR 1 ENGINE EEC BITE TEST PER T/C 78273000 SHOWS LAST 11 FLIGHT FAULTS MESSAGE 77-20861. ACCOMPLISHED FIM 77-21 TASK 803. INPUT MONITORING PAGE SHOWS S3 CHB = DASHES. ACCOMPLISHED EGT CLEANING IAW AMM 77-21-00-140-801. NOW READS S3 CHB = 43.25, S2 CHA = 41.75.