Summary
On July 10, 2018, a Air Tractor AT 502 (N4509S) was involved in an incident near De Land, IL. All 1 person aboard were uninjured. The aircraft sustained substantial damage.
The National Transportation Safety Board determined the probable cause of this incident to be: The pilot’s selection of unsuitable terrain for landing in crosswind conditions, which resulted in the airplane inadvertently becoming airborne and a subsequent hard landing and loss of directional control.
The pilot reported that, after an aerial application flight, during the landing roll in a rain shower and with a crosswind, the tailwheel-equipped airplane hit a "bump" and became airborne. He added that the airplane was slow, drifted left, and touched down hard. Subsequently, the airplane exited the runway and ground looped.
The pilot added that, he should have possibly landed further down the runway to avoid the bumps that sent him back into the air.
The airplane sustained substantial damage to the fuselage, empennage and left wing.
The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
An automated weather observation system located about 19 nautical miles from the accident site reported...
This incident is documented in NTSB report GAA18CA415. AviatorDB cross-references NTSB investigation data with FAA registry records to provide comprehensive safety information for aircraft N4509S.
Accident Details
Probable Cause and Findings
The pilot’s selection of unsuitable terrain for landing in crosswind conditions, which resulted in the airplane inadvertently becoming airborne and a subsequent hard landing and loss of directional control.
Aircraft Information
Registered Owner (Current)
Analysis
The pilot reported that, after an aerial application flight, during the landing roll in a rain shower and with a crosswind, the tailwheel-equipped airplane hit a "bump" and became airborne. He added that the airplane was slow, drifted left, and touched down hard. Subsequently, the airplane exited the runway and ground looped.
The pilot added that, he should have possibly landed further down the runway to avoid the bumps that sent him back into the air.
The airplane sustained substantial damage to the fuselage, empennage and left wing.
The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
An automated weather observation system located about 19 nautical miles from the accident site reported that, about the time of the accident, the wind was from 260° at 12 knots. The pilot landed on runway 18.
Data Source
Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# GAA18CA415