Service difficulty report · Battery Pack · Boeing 747400

Difficulty date
September 21, 2014
Submitted
September 26, 2014
Operation
Air carrier
Aircraft
N578UP
Make and model
Boeing 747400
Aircraft serial
27154
Aircraft time
90,211 hours, 15,267 cycles
Part
Battery Pack
Part number
20131A
Part serial
61472
Condition
Inoperative
Location
Emergency Lights
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

INSPECTION D, UPPER DECK EMERGENCY LIGHTS POWER SUPPLY FOUND INOPERATIVE. BATTERY PACK REPLACED, LIGHTS TESTED NORMAL.

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