# SDR USAA2014082800002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 27, 2014
- Submitted: August 28, 2014
- Operation: Air carrier
- Aircraft: [N173US](https://openairdocs.org/aircraft/N173US), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 1481
- Aircraft time: 46,583 hours, 17,254 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Part number: RAI22800M0706
- Part serial: Q00160006073
- Condition: Faulted
- Location: Lavatory
- Part time: 31,324 hours, 16,996 cycles
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA2014082800002

## Discrepancy

CREW REPORTED A SMOKE DETECTOR FAULT.  REPLACED SDCU FOR TROUBLESHOOTING.  REPLACED LAVATORY SMOKE DETECTORS 5WQ & 4WH.  OPERATIONS CHECKED SATISFACTORY IAW AMM 26-17-34, 26-16-15 & 26-17-15.

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