# SDR AALA202207128554

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 10, 2022
- Submitted: July 12, 2022
- Operation: Air carrier
- Aircraft: [N825AA](https://openairdocs.org/aircraft/N825AA), registered now
- Make and model: Boeing 737
- Aircraft serial: 40644
- Aircraft time: 20,156 hours, 2,343 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Condition: False Activation
- Location: Zone 900 - Lav/G
- Stage of operation: CR
- How discovered: V
- Nature of condition: J, N
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202207128554

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: DURING CRUISE ENGINE INDICATING AND CREW ALERTING SYSTEM DISPLAYED "SMOKE REST UPR DR 4" NON NORMAL CHECK LIST COMPLETED NO SMOKE FOUND. ENGINE INDICATING AND CREW ALERTING SYSTEM MESSAGE BLANKED.

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