- Difficulty date
- September 1, 2019
- Submitted
- September 4, 2019
- Operation
- Air carrier
- Make and model
- Boeing 737990ER
- Aircraft serial
- 36363
- Aircraft time
- 21,510 hours, 6,955 cycles
- Part
- Fmc
- Part number
- 1762000101
- Part serial
- 007656
- Condition
- Failed
- Location
- E&E Bay
- Part time
- 23,716 hours, 7,594 cycles
- Stage of operation
- IN
- How discovered
- O
- 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
FOUND NUMEROUS ETHERNET WRAP HARDWARE FAIL CODES ON #1 FMCS. GROUNDED - YES. PULLED AND TAGGED 2 C/B. REMOVED AND REPLACED @1 FMCS. RESET 2 C/B. CROSS-LOADED SOFTWARE FROM #2 FMCS. OPS TEST GOOD. REF. FIM 34-61 TASK 837 AND AMM 34-61-02. GROUND VERIFICATION TEST GOOD.