A final report into a helicopter crash in which ten people died in Glasgow two years ago has found that the pilot ignored protocol when he was running low on fuel.
The long-awaited conclusions of the Air Accidents Investigation Branch (AAIB) found that pilot David Trial acknowledged fuel levels were running low before the aircraft crashed into a pub in Glasgow on 29 November 2013, but did not complete a follow-up checklist.
The AAIB report confirmed that the helicopter had not been fitted with a flight recorder.
The families of those who lost their lives in the incident are calling for police helicopters to be fitted with flight recording equipment.
In a statement, they say crucial details surrounding the crash are missing from the report as there was no flight recorder.
The statement referred to the pilot as a "highly qualified and experienced former RAF helicopter pilot" who "should have been able to competently deal with fuel management, low fuel and emergency procedures".
"The report suggests that he had acknowledged low fuel warnings, but the AAIB could not establish why he did not complete the low fuel actions in the pilot's checklist, so something simply doesn't add up.
"The crucial real-time evidence from a flight data recorder and cockpit voice recorder would have enabled the investigators to reconstruct in far more detail what the pilot and helicopter were actually experiencing and the sequence/ timing/reasons for the events that occurred" the statement said.