What was found
PRIOR TO TAKEOFF, FMC DISAGREE MSG ON BOTH FMCS + MAP DISPLAYS. GROUNDED - YES. AS PER CHECKLIST, RESET FMCS CMPTR 1 AND FMCS CMPTR 2 CBS. MSG NO LONGER DISPLAYED.
- Difficulty date
- August 11, 2023
- Submitted
- August 14, 2023
- Operation
- Air carrier
- Aircraft
- N431AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 43255
- Aircraft time
- 36,171 hours, 11,426 cycles
- System (JASC)
- 3460 · Flight Management Computing Hardware System
- Part
- Unknown
- Part number
- UNKNOWN
- Condition
- Unknown
- Location
- Unknown
- Stage of operation
- TO
- 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.