# SDR 2020F00334

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 13, 2020
- Submitted: July 13, 2020
- Operation: Air carrier
- Aircraft: [N752CX](https://openairdocs.org/aircraft/N752CX), registered now
- Make and model: Boeing 757-2G5
- Registry model: [Boeing 757-2G5](https://openairdocs.org/model/boeing-757-2g5) (OpenAirDocs)
- Aircraft serial: 24451
- Aircraft time: 62,593 hours, 20,672 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Switch
- Part number: 21007
- Condition: Faulty
- Location: Emergency Light
- Part time: 62,593 hours, 20,672 cycles
- 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/2020F00334

## Discrepancy

DURING EMERGENCY LIGHT OPS CHECKS MULTIPLE LIGHTS FAILED TO COME ON.  REMOVED AND REPLACED TWO BATTERY PACKS AT M736 AND M737 IAW AMM 33-51-07.  REMOVED AND REPLACED 5 AMP FUSE IAW AMM 33-51-07.  PERFORMED OPS CHECK OF EMERGENCY LIGHTS IAW AMM 33-51-00.  OPS CHECK GOOD.  REMOVED AND REPLACED EMERGENCY LIGHT SWITCH IAW SWPM 20-83-11 OPS CHECK GOOD.

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