What was found
CA FMS FAIL IN FLIGHT. GROUNDED - YES. CONFIRMED FAULT, CAPTAINS FMC FAILED. REMOVED AND REPLACED CAPTAINS FMCS COMPUTER REF B737-900 AMM 34-61-02/401, OPS CHECK GOOD.
- Difficulty date
- March 22, 2022
- Submitted
- March 24, 2022
- Operation
- Air carrier
- Aircraft
- N474AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 40715
- Aircraft time
- 25,168 hours, 7,933 cycles
- Engine
- Ge CFM567B24
- System (JASC)
- 3460 · Flight Management Computing Hardware System
- Part
- Computer
- Part number
- 1762000101
- Part serial
- 002357
- Condition
- Failed
- Location
- Ee Rack, E5
- Part time
- 59,276 hours, 17,925 cycles
- Stage of operation
- CL
- 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.