What was found
LEFT FMC FAILED AT F340, .78 MACH. VTK DISPLAYED ON CAPTAIN'S ND WITH LOSS OF FMC ON BOTH CDU. RAN QRH AND REGAINED FMC. ACFT GROUNDED. DURING A BITE TEST FOUND LT PGM FAULT. ACCOMPLISHED FIM 43-61, TASK 807. FMC OPS CHECKED GOOD .
- Difficulty date
- August 6, 2018
- Submitted
- August 7, 2018
- Operation
- Air carrier
- Aircraft
- N434AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 61620
- Aircraft time
- 9,690 hours, 3,171 cycles
- System (JASC)
- 3460 · Flight Management Computing Hardware System
- Part
- Fmc
- Condition
- Malfunctioned
- Location
- Left
- 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.