# SDR UPS06848331

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 24, 2006
- Submitted: October 27, 2006
- Operation: Air carrier
- Aircraft: N811UP
- Make and model: Doug DC-8-73F
- Registry model: [Doug DC-8-73F](https://openairdocs.org/model/douglas-dc-8-73f) (OpenAirDocs)
- Aircraft serial: 46089
- System (JASC): [2497 · Electrical Power System Wiring](https://openairdocs.org/jasc/2497)
- Part: Wire
- Condition: Broken
- Location: Electrical
- Stage of operation: CR
- How discovered: O
- Nature of condition: S
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS06848331

## Discrepancy

NR 1 BUSS POWER FAILED IN FLIGHT.  RESET ACCORDING TO CHECKLIST.  FAILED SECOND TIME AND CONTINUED WITH FLIGHT.  GPWS AND BUSS FAULT RELAY SWITCHES SAFETY WIRE BROKEN.  REMOVED AND REPLACED NR 1 VOLTAGE REGULATOR AND GENERATOR CONTROL PANEL IAW MM 24-20-06-2.

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