Service difficulty report · Battery Pack · Boeing 767323

Difficulty date
August 11, 2025
Submitted
August 13, 2025
Operation
Air carrier
Aircraft
N317AZ
Make and model
Boeing 767323
Aircraft serial
25445
Aircraft time
107,746 hours, 19,977 cycles
Part
Battery Pack
Part number
20131A
Part serial
79606
Condition
Inoperative
Location
Zone 200
Part time
107,746 hours, 19,977 cycles
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

EMERGENCY LIGHT L9801, L9803 AND THE EXTERIOR EMERGENCY LIGHTS ARE INOPERATIVE. FAULT PLACED ON MAINTENANCE DEFERRAL 65186, CATEGORY D DUE ON 10 DECEMBER 2025. REMOVED AND REPLACED EMERGENCY BATTERY AND POWER SUPPLY IN FORWARD POSITION IN ACCORDANCE WITH BOEING 767 AIRCRAFT MAINTENANCE MANUAL 33-51-07. OPERATIONAL CHECK GOOD. DEFERRAL 65186 CLEARED.