# SDR DALA2015092905890

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 28, 2015
- Submitted: September 30, 2015
- Operation: Air carrier
- Aircraft: [N389DA](https://openairdocs.org/aircraft/N389DA), registered now
- Make and model: Boeing 737832
- Aircraft serial: 30376
- Aircraft time: 49,823 hours, 19,969 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Switch
- Condition: Failed
- Location: Emergency Light
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2015092905890

## Discrepancy

DURING TESTING FOUND EMERGENCY LIGHTS REMAIN ON WHEN COCKPIT LIGHT SWITCH IS IN OFF POSITION.  MAINTENANCE FOUND BAD SWITCH AT LAV D MODULE M1418.  R & R SWITCH, REF WDM 33-51-11.  NOW OPS NORMAL.  ALSO, FOUND AFT BATTERY PACK M1676 INOPERATIVE.  R & R SAME REF B737 33-51.

---
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.