This particular crash took place in the north sea offshore of Aberdeen in Scotland.
The aircraft is a super puma helicopter and called as 56 charlie.
On the morning of the 19th of january 1995 16 passengers and 2 pilots tookoff from aberdeen.The weather was looking good at the time and the flight was cleared to commence.These men onboard was on their way to an oilrig called grey alpha deep in the North sea.About 25 miles out from the oilrig clouds started forming and rounding up pretty quikly.These were not ordanary clouds but cumilolumbus clouds that are very dangerous to small aircraft.56 charlie was out of range with atc in Aberdeen so no one really knew where they were and these clouds have hail, rain, and lightning with winds up to 100kms an hour.
SITUATION: hail starts falling,problem, the ice detector goes off and thers icing on the blades but pilots take it as a false warning and thought the detector was blocked with ice.Then LIGHTNING STRIKES!56 charlie has been damaged but the pilots dont know how much.The helicopter keeps flying but its vibrating heavilly.The pilots check the controls out firts tries the roll and it seems fine,then the pitch and it seems fine but as they tried the yaw all hell broke lose and it was obvious where the lightning had struck the tail rotor.56 charlie went down in the North sea but made a mareculas crash landing and saved 16 lives including their own.It was a mission to find them since they wernt on any radar but was eventually found and rescued with all 18 lives in hand.
CONCLUSION:Investigators found that it was not ordanary lightning that hit 56 charlie but charged up static caused by the aircraft's own tail rotor.The tailrotor was made out of carbon fibre and that conducts electrisity.It created with the static in the air about 30 billion watts and struck!At first the 2 blades were just damaged,hence the vibration but as the pilots checked the controls it cracked and broke off,without tailrotor the helicopter spins on its own axis,just round and round.