# SDR NWAA082959928

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 20, 2008
- Submitted: August 1, 2008
- Operation: Air carrier
- Aircraft: N8921E
- Make and model: Doug DC-9-31
- Registry model: [Doug DC-9-31](https://openairdocs.org/model/douglas-dc-9-31) (OpenAirDocs)
- Aircraft serial: 45836
- Aircraft time: 79,163 hours, 80,047 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Condition: Inoperative
- Location: Emergency Lights
- 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/NWAA082959928

## Discrepancy

DURING LINE CHECK, MAINTENANCE FOUND THAT THE EMERGENCY PATHWAY LIGHTING ARM AND CHARGE CIRCUIT BREAKERS WERE TRIPPED AND WOULD NOT RESET.  MAINTENANCE REPLACED THE R5-50 POWER SUPPLY AND OPERATIONALLY CHECKED THE SYSTEM.  (A)

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