Service difficulty report · Fmc · Boeing 737990ER

Difficulty date
July 14, 2018
Submitted
July 17, 2018
Operation
Air carrier
Aircraft
N403AS
Make and model
Boeing 737990ER
Aircraft serial
41730
Aircraft time
22,669 hours, 7,456 cycles
Part
Fmc
Condition
Malfunctioned
Location
Cockpit
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

IN CRUISE FLIGHT LEFT FMC FAILED WITH VTK DISPLAYED ON CAPTAIN KD ACCOMP FMC FAIL CHECKLIST AND RESTORED NORMAL OPS. LEFT FMC FAILED AGAIN CONTINUED SINGLE FMC. GROUNDED - YES. T/S FMC (LT) (RT) PER 34-61-00-710-801 AMM. OPS. CHECK GOOD. NO FAULTS.