No fatalities

Rock Strike During Takeoff Results in Rudder Damage

Cottonwood, ID, United States

On April 7, 2013, a CESSNA A185E was involved in an aviation accident near Cottonwood, ID. No fatalities were reported. Investigators recorded the probable cause as: The pilot’s failure to see and avoid an object on the grass airstrip during the takeoff. This summary draws on records from NTSB; 12 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 2026-08-03Data APIEditorial standards

During takeoff from a private grass airstrip, the left main tire and tailwheel struck a rock hidden in tall grass. The pilot continued to destination and landed uneventfully, but post-landing inspection revealed substantial rudder damage.

Incident Summary

A pilot reported that during the takeoff ground roll from a private grass airstrip, the left main tire struck a rock partially hidden by tall grass, followed by the tailwheel also contacting the rock. Despite the impact, the pilot continued the takeoff and proceeded to the planned destination, where an uneventful landing was performed.

Post-Flight Inspection

After landing, examination of the airplane revealed that the rudder had sustained substantial damage. The pilot reported that there were no preimpact mechanical failures or malfunctions with the airplane or engine that would have precluded normal operation. The exact extent of the damage and any other affected components were not specified in the pilot's report.

Contributing factors

Causes

Effect on equipmentPilot

Other contributing factors

Effect on operation