Service difficulty report · Fmc · Boeing 737990ER

Difficulty date
September 15, 2022
Submitted
September 19, 2022
Operation
Air carrier
Aircraft
N459AS
Make and model
Boeing 737990ER
Aircraft serial
36352
Aircraft time
31,768 hours, 10,007 cycles
Part
Fmc
Part number
UNKNOWN
Condition
Faulted
Location
Unknown
Stage of operation
NR
How discovered
V
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

DUAL FMC FAILURE. BOTH FMC'S CYCLE ON AND OFF AFTER LANDING. GROUNDED - YES. NOT A DUAL FAIL. ONLY L FMC HAD A PGM FAULT & RESYNCED WITH THE R/H FMC ON LANDING. REBOOTED L/H FMC REF B737-900 FIM 34-61 TASK 804 & 34-61-00-860-801 OPS RESTORED L& R FMC OPS TESTS OK REF B737-900 AMM 34-61-00-710-801.