UK-based air services company Bond Aviation said it had temporarily grounded its global fleet of 38 EC 135 helicopters following a technical fault.
The EC 135 is the same model that was involved in a fatal crash into a pub in Scotland last month.
A company spokeswoman said one of the helicopters made by a subsidiary of aerospace group EADS had experienced an indicator defect today but declined to give more details of where the incident took place.
"We are continuing to investigate that technical fault that resulted in us temporarily suspending operations," she said.
The incident came less than two weeks after a Eurocopter EC135 T2 crashed through the roof of a pub in Glasgow.
The helicopters are used by air ambulance and police forces throughout the UK.
A tenth person has died following the crash at the Clutha Bar.
Joe Cusker, 59, died earlier today from injuries sustained in the accident.
Meanwhile, a spokesman for the Defence Forces has said the decision by Bond Helicopters to ground its fleet of Eurocopters has no implication for the Air Corps, which has a number of Eurocopter EC135s, including two used for Garda Air Support.
The spokesman said the only circumstances under which that would change would be if Eurocopter itself issued a bulletin recommending the grounding of all such machines.