Can't seem to access the report. As a former Twin Otter pilot, I can tell you that I always visually checked the flaps(of course you only can see one side from a particular pilot seat) prior to departure. Not an SOP thing, just something I always did as an airmanship thing. You are not going far in a DHC-6 with the flaps up on takeoff....or so I was told.
Perhaps, your company should purchase a maintenance manual. I'm sure it is not too expensive and if you want credibility, it should be an accurate depiction based on more than info from a pilot forum.
Last edited by JammedStab; 18th Jul 2013 at 01:28.