What was found
AT CRUISE ALTITUDE, BOTH FMCS FAILED WITH VTK INDICATED ON BOTH NAV DISPLAYS AFTER 10 SECONDES IT RECOVERED AND ALL INDICATIONS WERE NORMAL. ACFT GROUNDED. PERFORMED FIM TASK 34-61-836. NO DEFECTS NOTED. NO DEFECTS FOR PAST 60 DAYS.
- Difficulty date
- April 29, 2017
- Submitted
- May 1, 2017
- Operation
- Air carrier
- Aircraft
- N577AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35186
- Aircraft time
- 38,537 hours, 11,456 cycles
- System (JASC)
- 3460 · Flight Management Computing Hardware System
- Part
- Warning Message
- Condition
- False Activation
- Location
- Fmc
- 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.