This picture shows how a pilot suffered serious injuries when a plane landed on top of another one at an airstrip.

The biplane can been seen on top of the other aircraft at Dunkeswell Aerodrome in Devon.

The Air Accidents Investigation Branch launched an inquiry into the incident which involved aircraft N68427 landing on top of G-OMAG which was already on the runway, writes Paul Andrews of SWNS.

According to the AAIB the accident took place at around 1.32pm on August 20 last year.

It was caused by neither pilot having awareness of the other - because neither saw each other and they had not been alerted to the presence of each other by radio transmissions.

The pilot of G-OMAG suffered serious injuries due to the collision.

Details of the investigation from AAIB reveal that one pilot is aged 66, and the other, 72. There were no passengers onboard either of the planes.

READ NEXT: Small plane overshoots airport and crash lands on road

According to the report, the pilot of G-OMAG took off from Bodmin Aerodrome en-route to Dunkeswell Aerodrome to deliver the aircraft to its owner following an annual inspection.

At 1.05pm, the pilot of N68427 took off from Dunkeswell, his home base, for a flight in the local area.

The pilot of N68427 reported that he made a radio call indicating his intention to join the circuit at Dunkeswell Aerodrome, but could not recall receiving an answer.

None of the aerodrome operator’s staff who were present in their office could remember with any certainty either hearing, or responding to, this radio call.

At 1.29pm, the pilot completed a touch-and-go landing.

Shortly after, the G-OMAG pilot reported that he believed he was joining an empty circuit and no radio calls were heard after his initial contact with Dunkeswell Radio.

The pilot reported that he heard and felt what seemed like an “explosion” and then became aware of propeller blades rotating in front of his face.

He recalled that the cockpit was filled with debris from the shattered windshield, shards of metal and splintered wood.

As a result of this investigation, the CAA (Civil Aviation Authority) published a Supplementary Amendment to CAP 452, Aeronautical Radio Station Operator’s Guide, to improve the situational awareness of pilots operating at aerodromes providing an Air to Ground Communication Service.