Casualties unknown

1987-03-28: Aeronca 7AC (N6050V) — Art D. Daniels — Columbus, MT

Columbus, MT, US

On March 28, 1987, an Aeronca 7AC (registration N6050V) operated by Art D. Daniels was involved in an aviation accident near Columbus, MT. Investigators recorded the probable cause as: The student pilot's decision to execute a steep turn at low altitude, which resulted in an aerodynamic stall and subsequent loss of control. 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 1781061362Data APIEditorial standards

A student pilot and CFI practicing landings experienced a stall during a simulated engine failure exercise, leading to an unrecoverable nosedown impact at the airport.

What happened

A pre-solo student pilot and their certified flight instructor (CFI) were conducting landing practice operations. During a climbout phase at an altitude of approximately 300 to 400 feet, the CFI reduced power to simulate an engine failure scenario. The pair then discussed the appropriate procedures for handling a lost power situation during takeoff.

Following this discussion, the student pilot executed a steep 180-degree turn directed toward the airport. This maneuver caused the aircraft to stall. The CFI attempted to take control of the aircraft but was unable to recover it before ground impact. Upon impact, the aircraft nosed over.

The investigation

The investigation focused on the flight dynamics during the simulated emergency procedure. The primary finding was that the steep turn executed by the student pilot at low altitude and airspeed resulted in an aerodynamic stall. The inability to recover prior to impact indicates a critical loss of lift and control authority due to the excessive angle of attack.

Findings

The accident occurred during a training exercise involving a simulated engine failure. The key factors contributing to the incident include:

  • The execution of a steep 180-degree turn at low altitude
  • The resulting aerodynamic stall
  • The inability to recover from the stall before ground contact

The nosedown impact suggests significant forward momentum combined with a loss of lift, exacerbating the damage to the aircraft structure.

Safety message

This incident highlights the critical importance of maintaining adequate airspeed and avoiding steep turns at low altitudes during training exercises. Simulated emergency procedures must be conducted with careful attention to energy management to prevent stalls.

Probable cause

The student pilot's decision to execute a steep turn at low altitude, which resulted in an aerodynamic stall and subsequent loss of control.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001213X30429. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.