Service difficulty report · Cover · Boeing 747422

Difficulty date
July 30, 2012
Submitted
September 8, 2012
Operation
Air carrier
Aircraft
N121UA
Make and model
Boeing 747422
Aircraft serial
29167
Aircraft time
55,621 hours, 6,525 cycles
Engine
Pwa PW4056
Part
Cover
Part number
65B529738
Condition
Cracked
Location
Emergency Light
Stage of operation
IN
How discovered
V
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

FOUND DOOR 4R EVAC COVER CRACK. THIS IS A .250 INCH CRACK IN THE EVAC SWITCH GUARD. ALL FUNCTIONS OF GUARD AND SWITCH ARE NORMAL. ONLY THE COVER CRACK. EVAC FUNCTION NORMAL. REPLACED CRACKED EVAC COVER.