Casualties unknown

Landing Gear Collapse Following Touchdown Bounce (N9968X)

Anchorage, AK, US

On June 20, 1993, a Cessna 180 (registration N9968X) operated by Eagley, Ronald A. was involved in an aviation accident near Anchorage, AK. Investigators recorded the probable cause as: The failure of the right main landing gear due to structural overload during a bouncing touchdown, potentially influenced by the installation of wheel adapters. 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 2026-06-22Data APIEditorial standards

A light aircraft experienced a landing gear failure after bouncing upon touchdown. The right main gear leg detached and folded under the fuselage, causing significant structural damage to the airplane.

What happened

The pilot reported that the aircraft began to bounce immediately after touching down on the runway. In an attempt to control the aircraft's direction during this unstable phase of landing, the pilot applied right brake pressure. Approximately 150 to 200 feet past the point of initial contact with the ground, the right main wheel separated from its gear leg. On the subsequent bounce, the compromised gear leg folded inward beneath the fuselage, resulting in substantial damage to the airframe.

The investigation

A review of the aircraft's configuration revealed that it was equipped with Gar Aero 6-inch to 10-inch wheel adapters. These adapters were installed on the landing gear system at the time of the incident. The separation of the right main wheel and the subsequent folding of the gear leg occurred during the high-energy phase of the landing rollout.

Findings

The sequence of events indicates that the structural integrity of the right main landing gear was compromised during the bounce. The use of wheel adapters on the aircraft may have influenced the load distribution or alignment of the gear components during the impact. The pilot's application of brakes during the bounce likely exacerbated the stress on the already failing gear assembly, leading to the complete detachment of the wheel and the collapse of the gear leg.

Probable cause

The failure of the right main landing gear due to structural overload during a bouncing touchdown, potentially influenced by the installation of wheel adapters.

Frequently asked questions

What happened in the 20 Jun 1993 Cessna 180 accident near Anchorage, AK?

A light aircraft experienced a landing gear failure after bouncing upon touchdown. The right main gear leg detached and folded under the fuselage, causing significant structural damage to the airplane.

What aircraft was involved and where did it happen?

The accident on 20 Jun 1993 involved a Cessna 180, registration N9968X, operated by Eagley, Ronald A., at Anchorage, AK.

What was the probable cause of the accident?

The failure of the right main landing gear due to structural overload during a bouncing touchdown, potentially influenced by the installation of wheel adapters.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001211X12511. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.