Service difficulty report · Fmc · Boeing 737990ER

Difficulty date
January 19, 2018
Submitted
January 23, 2018
Operation
Air carrier
Aircraft
N478AS
Make and model
Boeing 737990ER
Aircraft serial
44105
Aircraft time
10,126 hours, 3,413 cycles
Part
Fmc
Condition
Malfunctioned
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

RIGHT FMC FAILED IN FLIGHT. GROUNDED - YES. PERFORMED GOOD RESET AND BITE PROCEDURE OF RT FMC PER FIM 34-61 TASK 836 AND FIM 34-61 TASK 801. PERFORMED GOOD OPS TEST OF RT FMC PER AMM 34-61-00-710-801. FMC TRANSFER SWITCH IS SET TO NORMAL.