NTSB Identification: CEN12LA531
14 CFR Part 91: General Aviation
Accident occurred Wednesday, August 08, 2012 in Poplar Grove, IL
Probable Cause Approval Date: 04/25/2013
Aircraft: RISTINE AVID MARK IV, registration: N1328L
Injuries: 1 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

The pilot reported he made 10 landings during light and variable wind conditions, the first nine of which were uneventful; however, on the 10th landing there was a sudden uncontrolled “jerk” to the left. The pilot was unable to maintain control and the airplane departed the runway into the grass. A postaccident examination of the airplane revealed the lower right longeron tail-spring failed due to corrosion.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

The failure of the lower right side longeron tail-spring support area during landing due to excessive corrosion.

Full narrative available

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