The incident happened near Beinn Lora, close to the village of Benderloch, north of Oban, just after 11:00.
The crash scene was located after UK Coastguard helicopters were scrambled from bases in Prestwick and Inverness.
Both injured people were then airlifted to hospital – one to the Royal Alexandra in Paisley and the other to the Queen Elizabeth University Hospital in Glasgow.
The Maritime and Coastguard Agency said the UK Aeronautical Rescue Coordination Centre (ARCC) received a call at 11:07, with reports of a light aircraft crash near Ben More, Scotland.
This report was followed by a report from Rescue Co-ordination Centre (RCC) Germany of an aircraft Emergency Locator Transmitter (ELT) activated at Beinn Lora, Scotland, about 35 miles to the west of the initial report.
Two UK Coastguard helicopters were immediately scrambled by the ARCC and sent to the two locations.
A helicopter based at Inverness was sent to Ben More and one based at Prestwick went to Beinn Lora, where it located the crashed aircraft on a mountain.
The Inverness helicopter arrived on scene 15 minutes later.
Original Source – BBC News.