What was found
DUAL FMC FAILURE JUST AFTER LANDING, FMC'S RECOVERED AFTER APPROX 1 MINUTE LATER DURING TAXI IN. "FMC DISAGREE" MSG DISPLAYED. GROUNDED - YES. FOUND PGM, PROGRAM FAULT. NO ACTION REQUIRED. LEFT AND RIGHT FMC OPS CHECK GOOD.
- Difficulty date
- May 3, 2023
- Submitted
- May 4, 2023
- Operation
- Air carrier
- Aircraft
- N459AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 36352
- Aircraft time
- 33,999 hours, 10,678 cycles
- System (JASC)
- 3400 · Navigation 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.