Service difficulty report · Display · Boeing 747422

Difficulty date
April 12, 2013
Submitted
June 27, 2013
Operation
Air carrier
Aircraft
N122UA
Make and model
Boeing 747422
Aircraft serial
29168
Aircraft time
57,332 hours, 6,694 cycles
Engine
Pwa PW4056
Part
Display
Part number
6228588105
Part serial
193
Condition
Malfunctioned
Location
Cockpit
Stage of operation
NR
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

STATUS NO LAND 3 AND IDS DU DISPLAYED. CREW REPORTED F/O PFD BLANKED AND SMELL OF BURNING IN AREA OF DISPLAY UNIT. REMOVED F/O PFD PER MM AND CONFIRMED BURNING ODOR FROM DU. REPLACED DU PER MM AND ACP SOFTWARE INSTALLATION PER MM, F/O PFD NOW OPS NORMAL.