"They had too much debt and the last winter has not been good to them in terms of contract work they would normally have done," said PwC receiver John Fisk.
"A reasonable amount of the business that HeliPro does is events driven, whether it's from weather or fire, or whatever it might be," the receiver said.
"That work wasn't as regular as it has been in the past and that affected their ability to generate cashflow and that -- combined with the debt levels -- meant that the directors reviewed the business and determined it wasn't appropriate to keep trading in its current form."
Fisk said the fleet had been temporarily grounded, as the receivers worked with the Civil Aviation Authority and the company's engineers to ensure all helicopters were safe.
The receivers are looking to sell the business as a going concern either as a whole or in part and were yet to determine the extent of the debt.