Service difficulty report · Fmc · Boeing 737990ER

Difficulty date
April 16, 2021
Submitted
April 19, 2021
Operation
Air carrier
Aircraft
N491AS
Make and model
Boeing 737990ER
Aircraft serial
44109
Aircraft time
20,343 hours, 6,509 cycles
Part
Fmc
Condition
Failed
Location
Left
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

LEFT FMC FAILED MOMENTARILY ON CLIMBOUT. NORMAL OPERATION RESTORED IN APPROXIMATELY 60 SECONDS. NOTE. VTK AND MAP DISPLAYED ON CAPTAIN'S NAV DISPLAY. GROUNDED - YES. REF B737-900 FIM 34-61 TASK 801 OPS RESTORED OK FOR SERVICE.