What was found
MOMENTARY FMC FAIL WITH ASSOCIATED VTK BUG/FLAG LATED LESS THAN 30 SECONDS. DID NOT REOCCUR. GROUNDED - YES. PERFORMED B737-900 FIM 34-61 TASK 836 ON BOTH FMCS' :OK: NO FLAGS.
- Difficulty date
- May 7, 2023
- Submitted
- May 9, 2023
- Operation
- Air carrier
- Aircraft
- N419AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41734
- Aircraft time
- 37,654 hours, 11,926 cycles
- System (JASC)
- 3400 · Navigation System
- Part
- Unknown
- Part number
- UNKNOWN
- Condition
- Unknown
- Location
- Unknown
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.