1986 45 people died when a twin-rotor Chinook helicopter plummeted into the North Sea a minute’s flying time from Sumburgh Airport in Shetland.
1988 A Sikorsky S-61N ditched en route from a drilling rig 70 miles off the north-east coast. Rescue teams saved all 13 passengers and crew.
1990 Six men died when a Sikorsky helicopter struck the Brent Spar oil storage platform in the North Sea.
1992 Eleven men were killed when a helicopter crashed into the North Sea during a 200-yard flight, taking workers from Shell’s Cormorant Alpha rig to an accommodation barge nearby. Six people survived the crash.
1995 After their helicopter was hit by lightning, 18 men endured huge waves and gales before being rescued. They had been travelling from Aberdeen to the Brae field, 150 miles off the coast.
1997 The weather was calm when a helicopter ditched into the North Sea while flying to a Norwegian oil rig.
2009 16 people died when a Bond-operated Super Puma L2 crashed into the sea 11 miles off Peterhead.
May 2012 14 passengers and two crew members were rescued after the Bond-operated helicopter they were in came down 30 miles off Aberdeen.
October 2012 19 people were rescued when a CHC-operated heli- copter ditched 14 miles west of Fair Isle, be- tween Orkney and Shetland.