What was found
AFTER HAVING A "VTK" AND "MAP" ILLUMINATED ON CAPT ND, RAN THE QRH AND WAS ABLE TO RESTORE DUAL FMC OPERATION. GROUNDED - YES. COULD NOT DUPLICATE FAULT ON EITHER FMC-1 OR FMC-2. OPS TEST NORMAL. REF B737-900 FIM 34-61 TASK 807.
- Difficulty date
- March 29, 2020
- Submitted
- March 31, 2020
- Operation
- Air carrier
- Aircraft
- N431AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 43255
- Aircraft time
- 25,476 hours, 8,234 cycles
- System (JASC)
- 3460 · Flight Management Computing Hardware System
- Part
- Unknown
- Condition
- Malfunctioned
- Location
- Cockpit
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.