# SDR USAA920071153

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 15, 2007
- Submitted: November 16, 2007
- Operation: Air carrier
- Aircraft: [N161UW](https://openairdocs.org/aircraft/N161UW), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 1403
- Aircraft time: 24,802 hours, 9,005 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Part number: PPA120100
- Part serial: 3811
- Condition: Defective
- Location: Lavatory
- Part time: 14,436 hours, 6,870 cycles
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA920071153

## Discrepancy

FLT NR 1521 - CLT-DEN - EMERGENCY EQUIPMENT, SMOKE LAV + CRG DET FAULT DURING PREFLIGHT.  MAINTENANCE REPLACED FORWARD LAV SMOKE DETECTOR.  BITE CHECK SMOKE DETECTOR CONTROL UNIT.  SYSTEM OPS NORMAL.  MESSAGE CLEARED.

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