Chopper makes emergency landing

The Canadian Press ~ The News
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Loose fragments in oil force helicopter to abort flight to a vessel 145 km offshore

A Cougar helicopter aborted a flight to an offshore vessel yesterday and made an emergency landing at Halifax Stanfield International Airport after an onboard safety system indicated there were particles in the chopper's oil.



An official with the Newfoundland-based company said a chip indicator on the Sikorsky S-92 sensed there were loose fragments of material in the oil, which can cause problems in the main gearbox.

Hank Williams, base operations manager for Cougar Helicopters, said the crew immediately reduced power to lessen the stress on the engines, and diverted back to Halifax at about 10 a.m.
"We got about 55 to 60 nautical miles into that flight and the pilot had an indicator light," Williams said at the Halifax airport, where the helicopter was being examined by a maintenance team.

"What they did was reduce power - both engines were available to them and running at all times."

The two crew and 15 passengers made an emergency landing in Halifax about 30 minutes later, according to protocol, and were all in good condition.

The helicopter was heading to a vessel working on the Deep Panuke natural gas pipeline, about 145 kilometres offshore.

The Sikorsky is the same model as a Cougar chopper that was involved in a fatal crash off Newfoundland in March, when 17 people died as they were being ferried to an oil rig.

Williams said there are five indicators around the helicopter's oil circulation system that can pick up small fragments of metal with a magnet. When enough accumulate, it sets off a warning light in the cockpit.

Williams said Cougar has had about three similar occurrences over the last year in which they've had to return to base because an indicator has warned of a potential problem.

"You have to understand the gearbox on an aircraft is all moving metal, so eventually, over time, they will always make a little bit of metal," Williams said.

Organizations: Halifax Stanfield International Airport

Geographic location: Halifax, Newfoundland

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