# SDR UPS01237314

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 17, 2001
- Submitted: November 21, 2001
- Operation: Air carrier
- Aircraft: [N914UP](https://openairdocs.org/aircraft/N914UP), registered now
- Make and model: Boeing 727-27C
- Registry model: [Boeing 727-27C](https://openairdocs.org/model/boeing-727-27c) (OpenAirDocs)
- Aircraft serial: 19246
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Condition: Inoperative
- Location: Cargo Bay
- Stage of operation: IN
- How discovered: C
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS01237314

## Discrepancy

INSPECTION TYPE:N/A TARGET ALERT H20824 LOWER CARGO SMOKE DETECTION.  LOWER CARGO SMOKE DETECTOR MX LT ILLUM.  TECH RECOMMENDS:  SUSPECT A-CHANNEL OF CCU FAILED.  REPLACE CCU.  PERFORMED ADJUSTMENT TEST PER MM 26-18-01, VERIFIED SN OF SMOKE DETECTORS.  NO FURTHER DISCREPANCIES FOUND, SYSTEM HAS BEEN OPERATING NORMAL SINCE 11/08/01.

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