What was found
BOTH FMC'S FAILED WITH VTK ANNUNCIATED ON BOTH PFD. BOTH FMC'S RECOVERED AFTER 60 SECONDS. GROUNDED - YES. ACCOMPLISHED FMC BITE IAW FIM 34-61 TASK 807. BOTH FMC SHOWS PGM FAULT FOR PREVIOUS LEG WITH NO OTHER FAULTS NOTED.
- Difficulty date
- January 20, 2020
- Submitted
- January 23, 2020
- Operation
- Air carrier
- Aircraft
- N468AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41735
- Aircraft time
- 21,909 hours, 7,073 cycles
- System (JASC)
- 3460 · Flight Management Computing Hardware System
- Part
- Fmc
- Condition
- Malfunctioned
- 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.