Narrative:

Smoke in aircraft. Lav detector activiated and shortly thereafter smoke was observed and smelt. Returned to [departure airport]. Made visual app and landed; cleared runway in front of the gate area so rolled across taxiway and parked in gate area; then evacuated passengers out main cabin door.aircraft may have been over serviced with oil.

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Original NASA ASRS Text

Title: Q400 flight crew reported returning to departure airport and evacuating the aircraft after experiencing smoke in the cabin. They were advised after landing the smoke was probably due to over-servicing the oil.

Narrative: Smoke in aircraft. Lav detector activiated and shortly thereafter smoke was observed and smelt. Returned to [departure airport]. Made visual app and landed; cleared runway in front of the gate area so rolled across taxiway and parked in gate area; then evacuated passengers out main cabin door.Aircraft may have been over serviced with oil.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.