Service difficulty report · Battery Pack · Boeing 7377H4

Difficulty date
February 26, 2026
Submitted
February 26, 2026
Operation
Air carrier
Aircraft
N299WN
Make and model
Boeing 7377H4
Aircraft serial
36614
Aircraft time
59,427 hours, 36,022 cycles
Part
Battery Pack
Condition
Inoperative
Location
Zone 200
Stage of operation
IN
How discovered
V
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

EXTERIOR EMERGENCY LIGHT AFT OF FWD SERVICE DOOR INOPERATIVE. TROUBLESHOT IAW FIM 33-50 TASK 801. CLEANED CONTACTS AT L730. REMOVED AND REPLACED POWER SUPPLY AND BATTERY PACK M01674 IAW AMM 33-51-06. OPS CHECKED GOOD.

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