British helicopter operator Bond has grounded its fleet of 22 EC135 aircraft, the same model that crashed into a Scottish pub last month killing nine people, after a defect was found on one of its flights.
"During normal operations yesterday, one of our EC135 fleet has experienced an indication defect that requires further technical investigation," the operator on Thursday.
"Therefore as a precautionary measure we have temporarily suspended service operations whilst we undertake detailed diagnosis.
We commenced investigations overnight, are continuing this morning and are in close liaison with Eurocopter regarding this investigation."
Bond, whose helicopters are used by police and ambulance services throughout Britain, had also operated the police helicopter that plunged through the roof of the Clutha bar in the Scottish city of Glasgow late on November 29.
The Air Accidents Investigation Branch said in an initial report that there was no sign of engine failure in the helicopter.
