- Difficulty date
- October 15, 2023
- Submitted
- October 16, 2023
- Operation
- Air carrier
- Make and model
- Boeing 7379
- Aircraft serial
- 44102
- Aircraft time
- 5,163 hours, 1,504 cycles
- Part
- Unknown
- Part number
- UNKNOWN
- Condition
- Unknown
- Location
- Unknown
- Stage of operation
- IN
- How discovered
- V
- 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
FFMG DEFECT - FMC DISAGREE INDICATED. GROUNDED - YES. FMC L + R 100 --> 6R SENSOR INTERROGATION INDICATES A STEADY SYNC ERROR. 8 CBS OPENED/TAGGED/UNTAGGED/CLOSED DURING MAINTENANCE. ACCOMPLISHED FMCS OPERATIONAL TEST PER B737-9 AMM 34-61-00-710-801 OBSERVING RESTORED OPERATION AND CORRECT INDICATIONS. ETOPS GROUND VERIFICATION SUCCESSFUL.