Casualties unknown

1986-11-15: Cessna 120 (N3004N) — Peyton, CO

Peyton, CO, US

On November 15, 1986, a Cessna 120 (registration N3004N) was involved in an aviation accident near Peyton, CO. Investigators recorded the probable cause as: The pilot's decision to abruptly reduce power during a takeoff abort in right quartering tailwind conditions, which resulted in a ground loop and subsequent collapse of the left landing gear. 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 private aircraft registered to the pilot ground looped and collapsed its left landing gear after an abrupt power reduction during a takeoff abort in right quartering tailwind conditions.

What happened

The aircraft, NC3004N, was involved in an incident during the initial phase of flight. The pilot had a check pilot aboard for the flight. During the takeoff roll, the aircraft encountered a right quartering tailwind. Upon reaching rotation speed, the pilot made the decision to abort the flight.

To execute the abort, the pilot abruptly reduced engine power. Consequently, the aircraft settled back onto the runway surface. Due to the wind conditions and the sudden loss of lift, the aircraft ground looped. During this uncontrolled movement, the left landing gear struck a knoll on the ground. The impact caused the left gear to collapse.

The investigation

The investigation focused on the mechanical failure of the landing gear following the ground loop. Examination confirmed that the left landing gear had collapsed after striking an obstruction. The pilot reported that the sequence of events was initiated by the abrupt reduction of power during the abort maneuver.

Probable cause

The pilot's decision to abruptly reduce power during a takeoff abort in right quartering tailwind conditions, which resulted in a ground loop and subsequent collapse of the left landing gear.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001213X35159. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.