Casualties unknown

Tailwheel Aircraft Ground Loop After Bounced Landing (N4785F)

Erie, CO, US

On July 8, 2000, a Piper PA-18-150 (registration N4785F) was involved in an aviation accident near Erie, CO. Investigators recorded the probable cause as: Aircraft control was not possible by the flight instructor due to the inadequate maintenance adjustment of the tail wheel steering system by maintenance personnel. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-06-10Data APIEditorial standards

A student pilot bounced during a three-point landing, causing the aircraft to veer right. The instructor's corrective rudder input led to a ground loop and runway exit. Post-accident inspection found excessive slack in the tailwheel steering chains.

Accident Sequence of Events During a training flight, the pilot receiving instruction executed a three-point landing. The aircraft bounced and, following the second touchdown, immediately veered to the right. The flight instructor took control of the aircraft and applied full left rudder. The aircraft subsequently exited the right side of the runway and entered a ground loop. ## Post-Accident Examination An examination of the tail wheel steering assembly revealed that the two chains and springs controlling the tail wheel steering had an estimated 1.5 inches of slack. The steering chain was being held together by a carabiner. A maintenance person stated that the chains and springs connected to the tail wheel steering assembly should be tight enough to give the pilot positive steering control. ## Maintenance Records The maintenance records indicated that the aircraft had accumulated approximately 4 flight hours since a major rebuild.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001212X21436. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.