# SDR C77A20180402001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 1, 2018
- Submitted: April 2, 2018
- Operation: Air carrier
- Aircraft: [N205NN](https://openairdocs.org/aircraft/N205NN), registered now
- Make and model: Emb ERJ 170-200 LR
- Registry model: [EMB ERJ 170-200 LR](https://openairdocs.org/model/embraer-s-a-erj-170-200-lr) (OpenAirDocs)
- Aircraft serial: 17000481
- Aircraft time: 8,234 hours, 5,209 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 34002210
- Condition: Inoperative
- Location: Emergency Lights
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/C77A20180402001

## Discrepancy

ROW 1 AISLE EMERGENCY EXIT SIGN NOT ILLUMINATING.  AFTER FURTHER INVESTIGATION,  FOUND THE EMERGENCY POWER SUPPLY NOT WORKING,  REMOVED & REPLACED POWER SUPPLY IAW AMM 33-50-01,  OPS CHECKED GOOD, ACFT OK FOR SERVICE.

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