Service difficulty report · Battery Pack · Boeing 7378H4

Difficulty date
August 27, 2025
Submitted
September 3, 2025
Operation
Air carrier
Aircraft
N8570W
Make and model
Boeing 7378H4
Aircraft serial
36952
Aircraft time
24,121 hours, 12,503 cycles
Part
Battery Pack
Condition
Inoperative
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

L2 AND R2 EXTERIOR EMERGENCY LIGHTS INOP. REMOVED AND REPLACED 1 EA BATTERY PACK M1672 AND OPS CHECK OF R2 EMERGENCY LIGHTS GOOD IAW SWA B737-800 AMM 33-51-06. RELAMPED L2 EXTERIOR LIGHT L732 AND OPS CHECK OF L2 EMERGENCY LIGHTS GOOD IAW AMM 33-51-04.

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