Service difficulty report · Unknown · Boeing 737890

Difficulty date
April 20, 2011
Submitted
April 22, 2011
Operation
Air carrier
Aircraft
N519AS
Make and model
Boeing 737890
Aircraft serial
36482
Aircraft time
8,252 hours, 2,492 cycles
Part
Unknown
Condition
Malfunctioned
Location
Autopilot Sys
Stage of operation
TX
How discovered
O
Nature of condition
O
Precautionary procedure
K

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

What was found

DURING PREFLIGHT THE MODE CONTROL PANEL DISPLAYS ARE BLANK. NO CIRCUIT BREAKERS OUT CYCLED AIRCRAFT POWER. RESTORED MODE CONTROL PANEL DISPLAYS AND ACCOMPLISHED DFCS GP49 LAND VERIFY TESTS AND HGS TEST IAW AMM 22 11 00.