What was found
DURING ENGINE START "FMC DISAGREE" MESSAGE ON BOTH PILOTS NAV DISPLAYS. GROUNDED - YES. FOLLOWED QRH AND MESSAGES NO LONGER DISPLAYED.
- Difficulty date
- January 14, 2023
- Submitted
- January 17, 2023
- Operation
- Air carrier
- Aircraft
- N407AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41731
- Aircraft time
- 38,052 hours, 11,899 cycles
- System (JASC)
- 3460 · Flight Management Computing Hardware System
- Part
- Fmc
- Part number
- UNKNOWN
- Condition
- Faulted
- Location
- Pilot'S
- Stage of operation
- TX
- 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.