Flight instruments 'not monitored effectively' before Shetland crash

Pilots of helicopter that crashed near Sumburgh killing four oil workers did not notice drop in airspeed, investigators findA final report by aviation investigators into a helicopter crash off the coast of Shetland, which claimed the lives of four oil workers, has found that the craft’s dangerously decreasing airspeed went unnoticed by pilots until it was too late to avoid the accident.The report by the Air Accidents Investigation Branch (AAIB) states that the helicopter’s flight ins