# SDR SB06056

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 3, 2006
- Submitted: June 5, 2006
- Operation: Air carrier
- Aircraft: N589US
- Make and model: Boeing 737301
- Aircraft serial: 23934
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Switch
- Part number: 15AT17
- Condition: Faulty
- Location: P5 Panel
- Stage of operation: IN
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SB06056

## Discrepancy

CLT - PILOT REPORTED THE FLOOR TRACK EMERGENCY LIGHTS REMAIN ILLUMINATED.  MAINTENANCE FOUND THE S7 EMERGENCY LIGHT SWITCH FAULTY.  THE SWITCH WAS PROVIDING A GROUND TO PIN 4 OF EACH BATTERY PACK WHILE IN THE ARMED POSITION.  REMOVED AND REPLACED S7 EMERGENCY LIGHT SWITCH PER MM 33-51-31.  OPERATIONAL CHECK GOOD.

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