# SDR UPS01836770

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 6, 2001
- Submitted: September 7, 2001
- Operation: Air carrier
- Aircraft: N730UP
- Make and model: Doug DC-8-71
- Registry model: [Doug DC-8-71](https://openairdocs.org/model/mcdonnell-douglas-dc-8-71) (OpenAirDocs)
- Aircraft serial: 46030
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Generator
- Part number: NA
- Part serial: NA
- Condition: Smoke
- Location: Nr 2
- Stage of operation: TX
- How discovered: O
- Nature of condition: B
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS01836770

## Discrepancy

DURING TAXI OUT NR 2 BUS POWER FAIL LIGHT ILLUMINATED NR 2 GEN UNPAR'LD LIGHT ILLUMINATED AND LEFT EMERG AC BUS POWER FAIL LIGHT ILLUMINATED  ATTEMPTED TO PERFORM BUS POWER FAIL LIGHT ILL CHECKLIST COCKPIT SMOKE CONTINUED, SECURED 1-4 GENS MOVED A/C TO ISOLATED AREA ACCOMP EMERGENCY EVAC PROCEDURES DUE TO SMOKE IN COCKPIT.     INSPECTED RELAYS AND WIRES ON NR 2 GENERATOR SYSTEM IN FLIGHT DECK AND  GALLEY AREA.  RAN BOTH PACKS AND RECIRC FAN WITH NO EVIDENCE OF SMOKE NOTED.  NR 2 BUS PWR FAIL LIGHT, REPLACED NR 2 GENERATOR RELAY BUT  NO HELP, DEFERRED NR 2 GENERATOR SYSTEM PER MEL 24-1-1.

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