# SDR 99ZZZX4342

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 23, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N429EX](https://openairdocs.org/aircraft/N429EX), registered now
- Make and model: Boeing 727-22C
- Registry model: [Boeing 727-22C](https://openairdocs.org/model/boeing-727-22c) (OpenAirDocs)
- Aircraft serial: 19100
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Bulb
- Part number: 308
- Condition: Failed
- Location: Smoke Detector
- Stage of operation: CR
- Nature of condition: P
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99ZZZX4342

## Discrepancy

DSM/MCI - FLT 635 - LOWER SMOKE DETECTOR LIGHTS INOPERATIVE.  RE-LAMPED LOWER SMOKE DETECTOR LIGHTS.

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