# SDR MALA100147

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 8, 2010
- Submitted: October 8, 2010
- Operation: Air carrier
- Aircraft: N457XJ
- Make and model: Saab 340B
- Registry model: [Saab 340B](https://openairdocs.org/model/saab-340b) (OpenAirDocs)
- Aircraft serial: 340B457
- Aircraft time: 25,611 hours, 28,197 cycles
- Engine: Ge CT79B
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Switch
- Condition: Inoperative
- Location: Emergency Lights
- 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/MALA100147

## Discrepancy

WHILE PERFORMING MX, FOUND EMERGENCY LIGHT SWITCH BAD. REPLACED EMERGENCY LIGHT SWITCH IN COCKPIT. REF AMM 39-40-15-02. P/N ON&OFF MS27406-1. OPS CHECK GOOD REF AMM 33-50-00.

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