Workers in Australia have been left stranded on a rig after helicopters were grounded in the wake of a North Sea helicopter crash which killed 13 people.
There were 11 passengers and two crew on board the flight from the Gullfaks B platform to Flesland Airport offshore Norway when it crash two weeks ago.
Commercial flights of the EC225 Super Puma helicopter were suspended worldwide by Airbus following the incident.
Two of the helicopters are normally used to transfer workers from the Ocean Monarch drilling rig back to the mainland.
CHC Helicopters said had been using a different type of aircraft to clear the backlog.
A spokeswoman said the new aircraft could take between only three and five people at a time, resulting in minor delays getting workers home.
It is believed some stranded workers may have been transferred to the mainland by boat – a trip which takes about 13 hours.
The National Offshore Petroleum Safety and Environmental Management Authority said it was aware of the matter and was currently making inquiries with the operator of the Ocean Monarch.