What happened
On 1 September 1999, a Rans S10, registration G-BRPT, was performing circuit flying at Dunkeswell Aerodrome in Devon. During the takeoff roll from Runway 36, the pilot noted a progressive loss of engine power. This degradation continued until the Rotax 532 engine failed entirely while the aircraft was at an altitude of approximately 80 feet above ground level.
In response to the loss of power, the pilot attempted a forced landing straight ahead, aiming for a concrete surface located beyond the airfield's boundary hedge. The aircraft made a heavy touchdown, which caused the landing gear to collapse, the right wing strut to bend, and the propeller to break. The aircraft then skidded along the surface before coming to a stop. The pilot was able to exit the aircraft via the canopy without injury.
The investigation
Investigators examined the wreckage and the circumstances surrounding the engine failure. During the post-accident inspection, it was discovered that the fuel valve had loosened, which contributed to the loss of power. The investigation also noted the pilot's flying experience, which included 162 total hours, with 18 hours specifically on this aircraft type.
Findings
- The engine failure was initiated by a loss of power following the loosening of the fuel valve.
- The heavy impact during the forced landing was responsible for the structural damage to the landing gear, propeller, and wing strut.