Service difficulty report · Fmc · Boeing 737990ER

Difficulty date
January 14, 2022
Submitted
January 19, 2022
Operation
Air carrier
Aircraft
N494AS
Make and model
Boeing 737990ER
Aircraft serial
41729
Aircraft time
21,762 hours, 6,741 cycles
Part
Fmc
Condition
Faulted
Stage of operation
NR
How discovered
O
Nature of condition
P
Precautionary procedure
O

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

What was found

NO VSPEED AND LDG AIT FLAPS ON FO'S PFD. LNAV AND VNAV WON'T ENGAGE. GROUNDED - YES. PERFORMED OPS CHK ON FMC REF B737-900 AMM 34-61-04 OPS GOOD. OK FOR SVC.