# SDR CALA2026083119086

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 28, 2026
- Submitted: August 31, 2026
- Operation: Air carrier
- Aircraft: [N36280](https://openairdocs.org/aircraft/N36280), registered now
- Make and model: Boeing 737824
- Aircraft serial: 31598
- Aircraft time: 65,725 hours, 24,547 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Condition: Faulted
- Location: Zone 200
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026083119086

## Discrepancy

LEFT OVERWING EMERGENCY LIGHTS ON.  DURING T/S, FOUND CB A10,  LT AFT EMGER CHARGE,  ON P18-3 PANEL HAD POPPED. ALL LT AFT EMERGENCY LIGHTS STARTING WITH OVERWING EXIT TO BACK OF ACFT ARE TURNING ON WITH OVERHEAD EMERGENCY EXIT LIGHTS SWITCH IN ARMED POSITION FOUND AFT LEFT BATTERY PACK AND CONTROLLER INOP. (M1673) REPLACED POWER SUPPLY AND BATTERY PACK(M1673) IAW AMM 33-51-06-960-806. OP CHECKED GOOD.

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