Service difficulty report · Fmc · Boeing 737990ER

Difficulty date
August 23, 2021
Submitted
August 25, 2021
Operation
Air carrier
Aircraft
N448AS
Make and model
Boeing 737990ER
Aircraft serial
36356
Aircraft time
18,990 hours, 6,060 cycles
Part
Fmc
Condition
Faulted
Location
Right
Stage of operation
CL
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

LOST RIGHT FMC IN FLIGHT (1 HOUR INTO FLIGHT) FOLLOWED QRH & WE STAYED IN SINGLE FMC (LEFT ON, BOTH ON LEFT). GROUNDED - YES. RELEASED PER MEL 34 -36J RIGHT HAND FMC INOP AUTHORIZED BY SEAMC DAN @ 0015Z.ENROUTE MEL - ACCOMP B737-900 FIM TASK 34-61 #836 SYS RESTORED. SYS OPS CKS NM PER 34-61-00, GND VERIFICATION SUCCESSFUL. THIS CLEARS MEL 34-36J, FLT CREW PLACARD REMOVED.