Re: UK Coastguard SAR - Bristow out??
Ref the 332 icing clearance, I too don't have flight manuals at home but the AS332L Flight Manual specifically requires 500' of positive temp air above minimum permisable operating altitude. I think you (HC) are mixing up the Flight manual procedures with the "operational rules" referred to in a previous post which were written to allow alleviations from the very restrictive flight manual limitations. It is the Operational rules which allow the 5 minutes to the coast alleviation;but this is for departures only. For arrivals, there must be 500' positive air temperature above the airfield prior to landing.
I will check the exact text next time I am at work and no doubt HC will discuss this further when he comes back from holiday.
Apologies to those who started this thread; the subject has veered somewhat off course.