What was found
DURING CRUISE THRU FL 290 LT FMC FAILED QH COMPLETED AND PROCEEDED SINGLE FMC (RIGHT FMC OPERATIONS NORMAL). GROUNDED-YES. PERFORMED B737-900 FIM 34-61 TASK 801, NO FAULTS NOTED AT THIS TIME.
- Difficulty date
- October 26, 2020
- Submitted
- October 27, 2020
- Operation
- Air carrier
- Aircraft
- N457AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 36355
- Aircraft time
- 24,971 hours, 8,056 cycles
- System (JASC)
- 3460 · Flight Management Computing Hardware System
- Part
- Fmc
- Condition
- Failed
- Location
- Left
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.