Two men in their 60s were taken to The Ottawa Hospital's trauma centre with serious but non-life-threatening injuries after their two-seater aircraft crashed Saturday near the Carp airport.
Ottawa police responded to the call shortly before 2 p.m.
"They hit some hydro poles on the way down," said Nicholas DeFazio, Ottawa Fire Services' public information officer.
"Both patients needed to be extricated from the plane."
After removing the two men from the aircraft, firefighters placed them in the care of paramedics, DeFazio said.
The downed hydro wires ignited two separate grass fires, he added, which have since been extinguished.
The plane involved was an ultralight Quad City Challenger II, said Chris Krepski, spokesperson for the Transportation Safety Board (TSB) of Canada.
The TSB is gathering information about the crash, Krepski said, but has not deployed investigators to the site.
Carp Road had been closed at Russ Bradley Road but has since reopened.