Originally Posted by error 401
It clearly states that they encountered water droplets the size and bla bla which clearly exceeded the certification standards bla bla
...is what the NTSB and Bureau d'Enquettes-Accidents said, but..
In short it means they were in f
SEVERE ICING
is your and BEA's interpretation, with which I can not possibly agree.
According to FAA, during severe icing the rate of ice accumulation on an aircraft is such that de-icing/anti-icing equipment fails to reduce or control the hazard. Immediate diversion is necessary. So was it present at Roselawn? No - boots and heaters dealt with ice quite nicely, the ridge of ice that proved to be fatal formed on unprotected area behind the boot.
Hindsight is always 20/20 but does anyone think that crew should have considered routine hold with some icing as potentialy dangerous, when even designers and certifying authorities didn't know it was at the time?