# SDR AALA20171109009

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 9, 2017
- Submitted: November 20, 2017
- Operation: Air carrier
- Aircraft: [N151AN](https://openairdocs.org/aircraft/N151AN), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6840
- Aircraft time: 6,537 hours, 2,525 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Part number: PPC120000
- Condition: False Activation
- Location: Lavatory
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20171109009

## Discrepancy

AIRCRAFT WAS GROUNDED: AFT LAVATORY SMOKE DETECTION ALARM AND INDICATION SOUNDED ON CLIMB OUT OF DFW, EMERGENCY WAS DECLARED, AIRCRAFT WAS RETURNED TO DFW. ACCOMPLISHED AMM 27-17-00, NO FAULTS NOTED, REPEAT ITEM. MAINTENANCE REPLACED SMOKE DETECTOR PER MM 26-17-15 AND MM 26-17-00. ACCOMPLISHED SATISFACTORY OPERATIONAL CHECK.

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