Nfld. & Labrador

Oil pressure problem forces offshore helicopter to turn back

An offshore helicopter had to return to St. John's International Airport Tuesday because of an oil pressure problem.

An offshore helicopter had to return to St. John's International Airport Tuesday because of an oil pressure problem.

The Newfoundland and Labrador Offshore Petroleum Board said the CHC Helicopters Canada flight was on its way to the West Hercules rig, which is drilling for Statoil.

It was about 20 kilometres out when the crew had an indication of low oil pressure in one of the two engines.

"This is the first occurrence of this nature for CHC Helicopters Canada and we are working with our client and the regulator to determine exactly what happened and to ensure it will not happen again," said a spokesperson for CHC Helicopters Canada.

The Sikorsky S-92A helicopter made it back to St. John's without a problem with its seven passengers and two crew members. 

The board said Statoil believes the problem may have been caused by the installation of the wrong-sized O-ring during maintenance.

CHC said it is investigating the placement of an incorrect sized O-ring.

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