Service difficulty report · Battery Pack · Boeing 73783N

Difficulty date
May 27, 2026
Submitted
May 29, 2026
Operation
Air carrier
Aircraft
N5479A
Make and model
Boeing 73783N
Aircraft serial
32578
Aircraft time
63,558 hours, 41,195 cycles
Part
Battery Pack
Condition
No Test
Location
Zone 200
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

FWD ENTRY AREA LH SIDE EMERGENCY LIGHT BATTERY PACK IS INOP.(OBSERVED WHILE PERFORMING FINAL CHECKS WITH ITEM 7-44). REPLACED AND TESTED FWD ENTRY AREA LH POWER SUPPLY BATTERY PACK IAW AMM 33-51-06-960-805 REV 89 DATED 02-15-2026 SATISFACTORY CONDITION.

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