What was found
IN FLIGHT LEFT FMC FAILED FOR AROUND 30 SECONDS BEFORE IT RESTORED ITSELF. GROUNDED - YES. BOTH FMC'S RESTORED FROM RE-SYNC R/H & L/H FMC BITE TEST OK. REF B737-900 AMM 34-61-00-710-801.
- Difficulty date
- October 3, 2021
- Submitted
- October 5, 2021
- Operation
- Air carrier
- Aircraft
- N477AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 40716
- Aircraft time
- 22,619 hours, 7,075 cycles
- System (JASC)
- 3460 · Flight Management Computing Hardware System
- Part
- Unknown
- Part number
- UNKNOWN
- Condition
- Unknown
- Location
- Unknown
- Stage of operation
- NR
- 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.