What was found
DUAL FMC FAILURE DURING CRUISE. AFTER A FEW MINUTES, BOTH FMCS BEGAN WORKING AGAIN FOR THE REMAINDER OF THE FLIGHT. ACFT GROUNDED. PERFORMED BITE PROCEDURES FOR FMC SYSTEM IAW FIM 34-61, TASK 801, NO FAULT NOTED, OK FOR SERVICE.
- Difficulty date
- February 11, 2017
- Submitted
- February 17, 2017
- Operation
- Air carrier
- Aircraft
- N423AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 35206
- Aircraft time
- 15,128 hours, 4,969 cycles
- System (JASC)
- 3460 · Flight Management Computing Hardware System
- Part
- Fmc
- Condition
- Malfunctioned
- Stage of operation
- CR
- 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.