An elderly pilot had a lucky escape after his private plane skidded along a rain-soaked airstrip in Perthshire and crashed through a fence.
The 75-year-old was not hurt in the accident at Strathallan Airfield in August.
The Air Accident Investigation Branch (AAIB) has published the results of its probe into the incident, which concluded that the plane had not touched down in the correct part of the airfield.
The Piper PA-32R aircraft suffered a damaged propeller blade, as well as some dents and scrapes, in the crash.
The pilot, who has not been named in the report, arrived at Strathallan the proposed new home of T in the Park after refuelling in Cumbernauld.
He said the approach was normal but the plane touched down “after considerable float”, having landed a few knots faster than usual.
He then found that the brakes were ineffective against the wet grass and he could not prevent the plane going off the end of the runway, crashing through a wooden fence and coming to rest about 50ft into a field.
A spokesman for the AAIB said: “The pilot was unhurt. He made the aircraft safe and vacated it normally.”
The pilot, who has 2,305 hours of flying experience, accepted that he had not touched down in the right spot, given the wet conditions.
It was also ruled that the slipperiness of the grass, the lack of any headwind and the gentle downwards slope of the airstrip were contributory factors.
* A student and his instructor were injured after an emergency landing at Balado Park airfield during a training exercise on the morning of August 14.
An AAIB spokesman said the instructor took control and landed the plane when the engine spluttered out while 85ft above the ground.
The aircraft, a Thruster T600N 450, landed heavily and ran into a hedgerow.
Both the pilot and the student suffered minor injuries.
Icing on the carburettor was blamed for the loss of engine power.