# SDR SWAA2026101282018

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 9, 2026
- Submitted: October 13, 2026
- Operation: Air carrier
- Aircraft: [N8508W](https://openairdocs.org/aircraft/N8508W), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 38814
- Aircraft time: 33,158 hours, 16,761 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Intermittent
- Location: Zone 200
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2026101282018

## Discrepancy

PARTIAL EMERGENCY EXIT LIGHTING ACTIVATION (ON THEN OFF) AT 8-10 MINUTE INTERVALS. OCCURS WITH THE SWITCH ARMED OR OFF. LIGHTS REMAIN ON FOR ABOUT 2 MINUTES EACH OCCURRENCE.  R & R EMERGENCY LIGHTS POWER AFT SUPPLY BATTERY PACK IAW AMM 33-51-06.

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