# SDR UPS05845884

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 17, 2005
- Submitted: December 19, 2005
- Operation: Air carrier
- Aircraft: N809UP
- Make and model: Doug DC-8-73F
- Registry model: [Doug DC-8-73F](https://openairdocs.org/model/douglas-dc-8-73f) (OpenAirDocs)
- Aircraft serial: 46109
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Battery
- Condition: Malfunctioned
- Location: Fire Detectors
- Stage of operation: AP
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS05845884

## Discrepancy

DURING FINAL APPROACH LOW CARGO COMPT FIRE LIGHT CAME ON AS SOON AS PACKS WERE TURNED OFF IT WENT AWAY.  PERFORMED LOWER CARGO COMPT SMOKE DETECTION SYS T/S MM 26-18-00-1.  REMOVED AND REPLACED BATTERIES ON DETECTORS FA1326, AC3305, AD6652, AD7666 SYS OK LIGHT INDICATED.

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