# SDR CALA9700490

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 6, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N68042](https://openairdocs.org/aircraft/N68042), registered now
- Make and model: Doug DC-10-10
- Registry model: [Doug DC-10-10](https://openairdocs.org/model/mcdonnell-douglas-dc-10-10) (OpenAirDocs)
- Aircraft serial: 46901
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Part number: 30231R17
- Condition: Inoperative
- Location: Cargo Compt
- Part time: 24,086 hours
- Stage of operation: AP
- Nature of condition: N
- Precautionary procedure: F
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA9700490

## Discrepancy

THE NR 4 SMOKE DETECTOR LIGHT AND CARGO FIRE LIGHT ILLUMINATED WHILE ON APPROACH TO OSA.  THE NR 1 CARGO FIRE EXTINGUISHER WAS DISCHARGED AND THE AIRCRAFT LANDED WITHOUT INCIDENT.   MAINTENANCE FOUND NO EVIDENCE OF FIRE.  THE NR 4 SMOKE DETECTOR WAS REMOVED AND REPLACED.  THE NR 2 SMOKE DETECTOR WAS ALSO REPLACED DUE TO ERRATIC TESTING.  OPERATIONAL CHECKS WERE GOOD.  THE NR 1 CARGO FIRE EXTINGUISHER WAS REMOVED AND REPLACED.  PART TOTAL CYCLES, 7,352.

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