Service difficulty report · Fmc · Boeing 737890

Difficulty date
December 8, 2022
Submitted
December 12, 2022
Operation
Air carrier
Aircraft
N534AS
Make and model
Boeing 737890
Aircraft serial
35202
Aircraft time
44,130 hours, 12,613 cycles
Part
Fmc
Condition
Warning Light
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

IN CRUISE FLIGHT LEVEL AT FL370 MACH.77 VTK DISPLAYED ON FO ND SINGLE FMC OPERATION ON SCRATCHPAD. GROUNDED - YES. REMOVED & REPLACED FMCS #2 AND PERFORMED GOOD INSTALLATION TEST AMM 34-61-02/401.