# SDR UPS04841780

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 27, 2004
- Submitted: January 28, 2004
- Operation: Air carrier
- Aircraft: N813UP
- Make and model: Doug DC-8-73F
- Registry model: [Doug DC-8-73F](https://openairdocs.org/model/douglas-dc-8-73f) (OpenAirDocs)
- Aircraft serial: 46059
- System (JASC): [3397 · Light System Wiring](https://openairdocs.org/jasc/3397)
- Part: Relay
- Part number: 5708458503
- Part serial: 070
- Condition: Inoperative
- Location: Emergency Light
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS04841780

## Discrepancy

INSPECTION TYPE:N/A EMERGENCY EXIT LIGHTS CAME ON WITH SWITCH IN ARM POSITION.  C/B RESET, LIGHTS WENT OUT.  EN ROUTE EMERGENCY EXIT LIGHTS CAME ON AGAIN.  WOULD NOT RESET, DISARM LIGHT TURNED OFF.  REMOVED AND REPLACED EMERGENCY LIGHTING BATTERY AND RELAY UNIT PER MM 33-50-01-2, OPS CHECK GOOD.

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