Service difficulty report · Battery Pack · Boeing 747422

Difficulty date
July 7, 2008
Submitted
July 17, 2008
Operation
Air carrier
Aircraft
N178UA
Make and model
Boeing 747422
Aircraft serial
24385
Aircraft time
75,733 hours, 9,286 cycles
Engine
Pwa PW4056
Part
Battery Pack
Part number
20131A
Condition
Inoperative
Location
Emergency Light
Stage of operation
IN
How discovered
C
Nature of condition
L
Precautionary procedure
K

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

What was found

DOOR 1L OVERHEAD EMERGENCY EXIT LIGHT INOP. FOUND FAULTY BATTERY PACK. REPLACED BATTERY PACK, OP CHECK OK REF MM 33-51-04. AC OK FOR SERVICE.