# SDR AALA20161201004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 30, 2016
- Submitted: December 1, 2016
- Operation: Air carrier
- Aircraft: [N438AA](https://openairdocs.org/aircraft/N438AA), registered now
- Make and model: Doug DC-9-83
- Registry model: [Doug DC-9-83](https://openairdocs.org/model/douglas-dc-9-83) (OpenAirDocs)
- Aircraft serial: 49456
- Aircraft time: 89,468 hours, 42,372 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 60030451
- Part serial: 23754
- Condition: No Test
- Location: Cabin
- Part time: 41,178 hours, 20,866 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/AALA20161201004

## Discrepancy

AIRCRAFT WAS NOT GROUNDED. AFT INTERIOR OVERWING EMERGENCY EXIT LIGHTS FAIL TO TEST. REMOVED AND REPLACED EMERGENCY POWER SUPPLY B5-105 IAW AMM 33-53-00. SYSTEM TEST NORMAL.

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