# SDR GAIA99145

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 28, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N278US
- Make and model: Boeing 727251
- Aircraft serial: 21157
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Part number: 302842
- Condition: Inoperative
- Location: Cargo Compt
- Stage of operation: IN
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/GAIA99145

## Discrepancy

DURING ROUTINE MAINTENANCE IN TOL, IT WAS DISCOVERED THAT THE NR 3 AND NR 5 SMOKE DETECTORS FAILED TO TEST.  REMOVED AND REPLACED THE NR 3 AND NR 5 SMOKE DETECTORS.  OPERATIONALLY CHECKED GOOD.  THE AIRCRAFT WAS RETURNED TO SERVICE.  (M)

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