What was found
SINGLE FMS OPERATION ON SCRATCHPAD, AND MAP FIXES WENT AWAY. ACFT GROUNDED. RT FMC LOGGED WATCHDOG TIMER FAULT LAST LEG. ACCOMPLISHED R FMC GROUND VERIFICATION TEST IAW AMM 34-61-00,TEST PASSED.
- Difficulty date
- May 24, 2018
- Submitted
- May 29, 2018
- Operation
- Air carrier
- Aircraft
- N413AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 35205
- Aircraft time
- 20,801 hours, 6,798 cycles
- System (JASC)
- 3460 · Flight Management Computing Hardware System
- Part
- Fmc
- Condition
- Unknown
- Location
- Rt
- 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.