What happened
The aircraft operated on a grass runway strip when it failed to stop within the available distance. The pilot reported that the approach and touchdown were conducted normally, but the aircraft did not decelerate as quickly as anticipated. As the end of the runway approached, the pilot applied hard braking. Despite these efforts, the aircraft slid off the end of the strip, traversing a three-foot drop-off onto a road below. The impact with a small dirt bank caused the nose gear to collapse and resulted in the aircraft nosing over.
The investigation
Examination of the wreckage confirmed that the nose landing gear had collapsed during the post-landing excursion. The aircraft came to rest after colliding with a dirt embankment beyond the runway threshold. No mechanical failures were identified prior to the incident that would have contributed to the loss of braking effectiveness or deceleration.
Findings
The primary factor in this accident was the pilot's inability to stop the aircraft on the available grass surface. Contributing factors included the reduced friction characteristics of the grass runway and the height of the drop-off at the runway end, which exacerbated the severity of the excursion once the pavement edge was passed.
Safety message
Pilots operating into grass strips should be aware that stopping distances can be significantly longer than on paved surfaces. Adequate speed control during the final approach is critical to ensure sufficient braking effectiveness remains available before reaching the runway end.