Service difficulty report · Control Panel · Boeing 777222

Difficulty date
May 28, 2013
Submitted
June 27, 2013
Operation
Air carrier
Aircraft
N784UA
Make and model
Boeing 777222
Aircraft serial
26951
Aircraft time
71,738 hours, 10,006 cycles
Engine
Pwa PW4090
Part
Control Panel
Part number
8221494101
Part serial
51
Condition
Failed
Location
Autopilot
Stage of operation
NR
How discovered
9
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

MODE CONTROL PANEL LANE 1 OF THE 2 LANES IN AUTOPILOT FLIGHT DIRECTOR SYS (AFDS) MODE CONTROL PANEL (MCP) OR ITS INTERFACE TO THE AFDC HAS FAILED. REPLACED MCP IAW MM, OPS TESTED OK.