Exactly PKPF68-77, and well elucidated.
I for one have thought about carb icing, airframe icing, the carbon monoxide detectors in the aircraft I fly and all manner of other threats to the safety of my daily flying activities as a result of thinking about possible causes of this accident. Those who say they haven't are fooling nobody but themselves and what is more, miss a vital opportunity to draw a positive from a negative but hey, this is the internet and if someone thinks I'm a fool then more fool them. I have worked everyday with light aircraft for the best part of ten years and accidents are a genuine working hazard, always a possibility day in/day out, which I naturally have some degree of knowledge about and a deep desire to prevent occuring.... but each to their own. If one false theory espoused here can help prevent a future accident then who can really complain? A better way to salute those lost I cannot find.
VFE.