# SDR SWAA2026101381241

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 9, 2026
- Submitted: October 14, 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: 33,162 hours, 16,762 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Faulty
- 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/SWAA2026101381241

## Discrepancy

EMERGENCY EXIT LIGHTNING SYSTEM DUE TO PARTIAL EMERGENCY EXIT LIGHTING ACTIVATION ON THEN OFF AT 8-10 MINUTES.   R & R POWER SUPPLY ASSY M1672 IAW AMM 33-51-06.  REMOVED AND REPLACED THE BATTERY PACK AT M1672 IAW AMM 33-51-06. OPS CHECKED GOOD.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.