Service difficulty report · Fmc · Boeing 737990ER

Difficulty date
April 10, 2021
Submitted
April 20, 2021
Operation
Air carrier
Aircraft
N453AS
Make and model
Boeing 737990ER
Aircraft serial
36354
Aircraft time
27,428 hours, 8,751 cycles
Part
Fmc
Condition
Failed
Location
Left
Stage of operation
DE
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 FAIL AT TOD FL 330 FOR 1 MIN THEN RECOVERED FOR REMAINDER OF FLIGHT. GROUNDED - YES. PERFORMED FMCS L&R INFLT FAULTS BITE - NO FAULTS LAST 10 FLTS. PERFORMED B737-900 FIM 34-61 TASK 836, INITIAL EVALUATION GOOD. GROUND VERIFICATION TEST GOOD.