‘Not right’: Helicopter hovers near power lines outside restaurant

Mystery surrounds why a helicopter was seen hovering near powerlines outside a restaurant in South Australia.

The chopper whipped up dust and was flying precariously close to a red Porsche parked outside the Victory Hotel in Sellicks Hill, south of Adelaide yesterday.

At one point it looked as if it was trying to make an emergency landing on Main South Road, where traffic was brought to a standstill.

Diners enjoying lunch inside the restaurant watched in shock as the helicopter flew terrifyingly near the large windows before taking off again.

"That can't be right. That's not right," an onlooker could be heard saying in a video of the close call.

Another customer enjoying an Easter meal with her family said "it looked like it was an emergency landing".

"There was dust everywhere … cars stopped on the road … some people got scared in the restaurant once the helicopter faced the restaurant," Mary Falidis told 9News.

"It might have crashed into the cars or we thought might have lost control and came crashing into the restaurant that's what some people thought."

Aviation authorities are investigating to determine exactly who was in the aircraft and why it descended where it did.