More in search of others opinions rather than any claimed knowledge, I also hope I haven't missed the answer in a previous post too, but something that's always seemed in favour of a last minute issue causing the aircraft to become inadvertent IMC is that SH phrase "go down slow down". It's not in any crews mentality to press on IMC below safety altitude when other options are available. We're an inadvertent IMC event handled where an icing clearance and IFR option were available a pull up in cloud to Safety altitude and a turn to a safe heading of course would be logical and unquestioned. That said with neither and if the aircraft was seen VFR, VMC below cloud by the yatch, wether it was 4, 5 or 600ft above the sea a descent to stay VMC would be automatic for crews used to flying a lot lower level than where they were, like wise a slow down for the prevailing visibility also. Unless of course from contentedly cruising VMC below something occurred and put them IMC at minimal if any notice while dealing with an internal issue at the same time perhaps.... NR runaway up? FADEC issues as reported by the Odiham TP?
