Service difficulty report · Battery Pack · Boeing 7378H4

Difficulty date
August 21, 2023
Submitted
August 23, 2023
Operation
Air carrier
Aircraft
N8544Z
Make and model
Boeing 7378H4
Aircraft serial
36926
Aircraft time
20,054 hours, 9,900 cycles
Part
Battery Pack
Part number
UNKNOWN
Condition
Inoperative
Location
Zn 200 Fus Top
Stage of operation
IN
How discovered
9
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

AFT OVER-WING LOWER EMERGENCY EXIT LIGHTS WILL NOT ILLUMINATE DURING TEST.<[01] T/S AND FOUND RH O/W L01188 EXIT IND LIGHT WIRING CONNECTED TO ITSELF; REMOVED AND REPLACED BATTERY PACK AND CHARGER ASSY REF WDM 33-51-21 AND MM 33-51-06

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