What was found
FMC DISAGREE DISPLAYED ON BOTH MCDU'S ON TAXI IN. GROUNDED - YES. L/H FMC HISTORY SHOWS PGM FAULT CAUSED DISAGREE. REBOOTED L/H FMC COMPUTER. BITE TEST OK REF V737-800 FIM 34-61 TASK 807 & 34-61 TASK 835. NORM OPS RESTORED.
- Difficulty date
- December 20, 2021
- Submitted
- December 23, 2021
- Operation
- Air carrier
- Aircraft
- N559AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35178
- Aircraft time
- 54,448 hours, 16,014 cycles
- System (JASC)
- 3460 · Flight Management Computing Hardware System
- Part
- Unknown
- Part number
- UNKNOWN
- Condition
- Unknown
- Location
- Unknown
- Stage of operation
- TX
- 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.