On March 30, 1993, a Piper PA-20 (registration N7732K) operated by Alton, Jack E. was involved in an aviation accident near Lapeer, MI. Investigators recorded the probable cause as: THE PILOT'S FAILURE TO MAINTAIN DIRECTIONAL CONTROL DURING THE LANDING ROLL. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
Upon landing, the aircraft experienced a ground loop to the left despite right rudder and brake application, departing the left side of the runway. The pilot reported light winds and no mechanical issues.
Incident Details
The pilot of a general aviation aircraft reported that upon arriving at the destination airport, the winds were light. After landing on Runway 36, the landing was described as normal, and the initial roll out continued normally for approximately 100 feet. At that point, the aircraft began an uncontrolled ground loop to the left. The pilot applied right rudder and brake inputs, but these did not correct the direction of the turn. The aircraft subsequently departed the left side of the runway.
Pilot Report
In his report, the pilot stated that there was no preimpact mechanical malfunction with the aircraft. The ground loop occurred unexpectedly after a seemingly normal landing and initial rollout. The pilot's attempts to correct the left turn were unsuccessful, leading to the runway excursion.