# SDR AALA202207260934

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 23, 2022
- Submitted: July 26, 2022
- Operation: Air carrier
- Aircraft: [N857NN](https://openairdocs.org/aircraft/N857NN), registered now
- Make and model: Boeing 737
- Aircraft serial: 30907
- Aircraft time: 35,545 hours, 14,704 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Light
- Condition: Inoperative
- Location: Zone 200 - Fuse
- 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/AALA202207260934

## Discrepancy

AIRCRAFT WAS GROUNDED: FOUND OVERHEAD DIRECTIONAL EXIT SIGN L1070 DOES NOT ILLUMINATE REPLACED POWER SUPPLY KNOWN GOOD POWER SUPPLY INSTALLED NO HELP. REF AMM 33-51-06. NEW POWER SUPPLY IN PLACE. REMOVED AND REPLACED  EMERGENCY EXIT SIGN L1070 PER AMM 33-51-01.

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