- 3 updates
The team investigating the Glasgow helicopter crash in December have ruled out a host of possible causes, but are still looking into data recorded by the aircraft and on CCTV before it hit the ground.
The Air Accidents Investigation Branch said there were no signs of in-flight fire, or of structural failure affecting the helicopter.
It also said that fuel warnings were issued for both engines before it crashed, and that one of the warnings issued "related to an autopilot system failure".
Investigators are still trying to discover why no emergency transmission was received by the pilot, and why the craft did not enter into an "autorotative descent" before crashing - an automatic turning of the rotors which would normally occur as a helicopter falls through the air.
The helicopter which crashed into a Glasgow pub in December had not experienced transmission or rotor failure before it hit the ground, a report has confirmed.
The Air Accidents Investigation Branch said it also ruled out damage from foreign objects, and found no evidence of blockages in the exhaust system.
A report on the cause of the helicopter crash in Glasgow in December has found that both engines flamed out before the helicopter hit the ground.
The investigating team also concluded that the main rotor and tail rotor blade were not rotating at the moment of impact, and that no fuel leaked from the aircraft before it crashed.