# SDR QXEA2009042100283

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 17, 2009
- Submitted: April 21, 2009
- Operation: Air carrier
- Aircraft: N603QX
- Make and model: Cndair CL6002C10
- Aircraft serial: 10011
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Condition: False Activation
- Location: Lavatory
- Stage of operation: TO
- How discovered: O
- Nature of condition: N
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QXEA2009042100283

## Discrepancy

PDX - AT 90 KTS ON TAKEOFF, THE AFT LAV SMOKE WARNING MESSAGE WENT OFF.  TAKEOFF WAS ABORTED, CHECKLIST C/W.  FLIGHT ATTENDANT DID NOT FIND ANY HEAT SOURCE.  RETURNED TO THE GATE.  REPLACED LAV SMOKE DETECTOR, RT ACM, RT PRE-COOLER, RT DUAL HEAT EXCHANGER, NR 2 ENG BOROSCOPE, GROUND RAN VARIOUS POWER SETTINGS, NO DEFECTS NOTED.

---
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.