Aircraft	ATR42-500
Airline	Finncomm Airlines
Name	Capt Kristian Smith and Cop Lauri Huima
Date	11 Oct 2007
Groundspeed	416 kts
Notes	During shallow descent into Helsinki with a tail-wind of 88kts from FL210. The maximum tail-wind was about 100kts and the maximum ground speed during the descent was actually 417kts, but didn't got it on a photo.