# SDR AALA202101139001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 12, 2021
- Submitted: January 13, 2021
- Operation: Air carrier
- Aircraft: [N178US](https://openairdocs.org/aircraft/N178US), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 1519
- Aircraft time: 65,126 hours, 24,648 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Part number: PPA120501
- Condition: False Activation
- Location: Lavatory
- Stage of operation: NR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202101139001

## Discrepancy

AIRCRAFT WAS NOT GROUNDED.  SMOKE DETECTOR AUREL ALERT SMOKE INDICATION FALSE WARNING.  PERFORMED OPERATIONAL TEST OF THE LAVATORY SMOKE DETECTOR SYSTEM, PER AMM 26-17-00.  OPERATIONS CHECK GOOD.  NO FAULTS FOUND.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.