A helicopter flight to St. John's from the Terra Nova oil field was forced to declare an emergency when its landing gear wouldn't descend Thursday.

According to an incident report from the Canada-Newfoundland and Labrador Offshore Petroleum Board (C-NLOPB) released Friday, Cougar Flight 421 was carrying 14 passengers and two flight crew when a problem with its landing gear was detected.

A flyby of the control tower confirmed the problem: the helicopter's landing gear hadn't descended.

The crew then declared an emergency, the release said. 

The landing gear eventually came down and, after confirmation from a second tower flyby, the helicopter landed safely in St. John's.

Local emergency response teams were onsite when the helicopter landed.