SDR SWAA2026092128212

Service difficulty report · Battery Pack · Boeing 7378H4

Difficulty date: September 15, 2026
Submitted: September 22, 2026
Operation: Air carrier
Aircraft: N8575Z
Make and model: Boeing 7378H4
Aircraft serial: 63589
Aircraft time: 27,335 hours, 14,126 cycles
System (JASC): 3350 · Emergency Lighting
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

SEVERAL EXTERIOR AND INTERIOR EMERGENCY LIGHTS WERE INOPERATIVE. REMOVED & REPLACED THE BATTERY PACKS AT THE M2816, M1670, M1671, M1694, M2335, M1673, & M1672 IAW AMM 33-51-06-960-805. PERFORMED SATISFACTORY OPS CHECK IAW B737 AMM 33-51-06-960-805.

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