Casualties unknown

1984-06-26: Bellanca 7GCBC (N88399) — Dillon, MT

Dillon, MT, US

On June 26, 1984, a Bellanca 7GCBC (registration N88399) was involved in an aviation accident near Dillon, MT. Investigators recorded the probable cause as: The pilot's inadequate airspeed control during the final approach, which resulted in an inadvertent 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 pilot attempting a short field landing for a nature movie made an unusually short base leg on final approach, causing the aircraft to stall and slide into the ground.

What happened

The pilot reported that he was conducting operations to support the filming of a nature movie. His objective was to execute a short field landing to capture a specific film sequence. During the third approach, the pilot decided to shorten his base leg compared to his normal procedure. As the aircraft transitioned onto final approach, it experienced an aerodynamic stall and slid laterally upon impact with the runway surface.

The investigation

Post-accident examination revealed significant structural damage resulting from the ground contact. The left main landing gear collapsed under the stress of the impact. Additionally, the left wing sustained damage consistent with the manner in which the aircraft settled onto the ground after the stall.

Findings

Several factors contributed to the accident. The pilot's decision to fly a shorter-than-normal base leg likely reduced the time available for configuration and speed management. The operation was conducted at a density altitude of approximately 6,200 feet, which degrades aircraft performance. The combination of these elements led to an inadvertent stall during the critical phase of landing.

Safety message

Pilots should maintain standard approach profiles even when attempting specialized maneuvers for media production. Deviating from established procedures can compromise safety margins, particularly at higher density altitudes where performance is already reduced.

Probable cause

The pilot's inadequate airspeed control during the final approach, which resulted in an inadvertent 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/20001214X39926. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.