In his early thriller 'The Most Dangerous Game' the late Gavin Lyall has a Cessna floatplane sabotaged by 'fixing the flaps' (it's when the hero, the boozy pilot of knackered DH Beaver, realises he's up against a professional). There's a vivid description of the aeroplane flipping upside down and the pilot fighting to fly out inverted, with the trim dragging him down... Given the author's flying background I've often wondered how plausible the scenario was.