Service difficulty report · Fmc · Boeing 737990ER

Difficulty date
October 5, 2022
Submitted
October 7, 2022
Operation
Air carrier
Aircraft
N474AS
Make and model
Boeing 737990ER
Aircraft serial
40715
Aircraft time
27,229 hours, 8,546 cycles
Part
Fmc
Part number
UNKNOWN
Condition
Failed
Location
Unknown
Stage of operation
CR
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

LOST FMC #1 (LEFT) WHILE AT ALTITUDE FOR ABOUT 30 SECS. FMC SELF RECOVERED. GROUNDED - YES. L FMC TESTS GOOD.