I remember an incident in the 1980s to an Okanagan S76A cruising along off the coast of India. Both the pilots were over 60, which had nothing to do with the incident. A wire from the float test switches was routed over the sharp corners of the radar & duly chafed through. At aound 135 knots the floats blew up. The 76 bucked & jumped badly, then settled down to a steady 130 knot cruise. Both the pilots were a lot greyer on landing than when they took off!
All our 76s were checked & quite a few were close to repeating the incident. Basically, especially in a 212, it is not nice if the floats inflate in the cruise unless designed to do so.