Casualties unknown

Aircraft Impacts Ground in Vertical Attitude During Weather Check Flight (N111BF)

Monument, CO, US

On June 15, 1996, a Piper PA-18-150 (registration N111BF) was involved in an aviation accident near Monument, CO. Investigators recorded the probable cause as: The pilot's VFR flight into instrument meteorological conditions in an aircraft which not instrument-equipped. Factors were clouds, low ceiling, and rain. 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

During a weather check flight before towing a glider, the pilot encountered IMC in an aircraft not equipped for nonvisual flying. The aircraft struck the ground vertically. No preaccident failure was found.

Background

The accident flight was a weather check conducted prior to a glider towing operation. The pilot planned to tow a glider from one airport to another after assessing conditions. The pilot was experienced, with over 11,000 hours of flight time and held an instrument rating.

Accident Sequence

During the flight, the pilot encountered instrument meteorological conditions. The aircraft was not equipped for nonvisual flying, meaning it lacked the necessary instruments or equipment to operate solely by reference to instruments. Subsequently, the aircraft impacted the ground in a vertical attitude.

Investigation Findings

The investigation did not reveal any preaccident failure or malfunction of the aircraft. No issues with the airframe, engine, or systems were identified. The pilot's qualifications and experience were noted, but no causal factor was determined from the available evidence.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001208X05954. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.