What was found
LEFT FMC DISPLAYED FAILURE MULTIPLE TIMES DURING CRUISE FLIGHT. IT WOULD SELF-RESTORE EACH TIME AFTER ABOUT 30 SECONDS. ACFT GROUNDED. RESET THE NR 1 FMC IAW FIM 34-61, TASK 804. THE NR 1 FMC OPS CHECKED OK IAW FIM 34-61, TASK 804.
- Difficulty date
- April 30, 2017
- Submitted
- May 2, 2017
- Operation
- Air carrier
- Aircraft
- N481AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 44106
- Aircraft time
- 6,832 hours, 2,301 cycles
- System (JASC)
- 3460 · Flight Management Computing Hardware System
- Part
- Fmc
- Condition
- Malfunctioned
- Location
- Nr 1
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- N
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.