# SDR UPS05845559

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 7, 2005
- Submitted: October 12, 2005
- Operation: Air carrier
- Aircraft: [N750UP](https://openairdocs.org/aircraft/N750UP), registered now
- Make and model: Doug DC-8-71F
- Registry model: [Doug DC-8-71F](https://openairdocs.org/model/douglas-dc-8-71f) (OpenAirDocs)
- Aircraft serial: 45950
- System (JASC): [2697 · Fire Protection System Wiring](https://openairdocs.org/jasc/2697)
- Part: Ground Wire
- Condition: Shorted
- Location: Smoke Detector
- Stage of operation: CR
- How discovered: O
- Nature of condition: B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS05845559

## Discrepancy

CARGO SMOKE LIGHT ILLUMINATED - ALL POSITIONS.   T/S SYS FOUND & REPAIRED BAD GROUND WIRE 8M OHMS ON SMOKE DETECTOR UNIT NR 1. FOUND & REPAIRED BAD GND WIRE ON SDU NR 3. FOUND AND REPAIRED BAD GNU D WIRE ON SDU NR 5. ALL OTHER SDU GND WIRES CKD GOOD PER WDM 26-11-01 PG 1. SYS OPS OK PER MM 26-10-07-2

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