It's the same old sad story of pilots flying routine boring legs missing the big picture when it all goes wrong. The Air France accident is classic.
If I may just point to Vertical Freedoms postings on here he is flying at the margins of the helicopters ability and extreme altitude and weather as a single pilot he must be waiting for an challenge every flight.
How two well qualified North Sea pilots lost the plot here poses major questions.
BBC News - Shetland helicopter crash: Pilots 'failed to spot reduced airspeed'
Four people lost their lives here.