Nose gear collapse during landing at Wycombe Air Park

Casualties unknown • Wycombe Air Park, Buckinghamshire, GB

A Rutan Long-Ez experienced a nose wheel separation during a private landing at Wycombe Air Park due to a mechanical failure in the landing gear mechanism.

What happened

On 15 July 2001, a Rutan Long-Ez, registration G-LUKE, was performing a private flight at Wycombe Air Park, Buckinghamshire. During the landing phase on Runway 25, the aircraft made contact with the tarmac on its main landing gear. The pilot reported that the touchdown was both fast and firm. Following this initial contact, the nose landing gear descended to the runway surface but subsequently bounced. This secondary impact caused significant vibration throughout the airframe. As the nose gear made a second contact with the runway, the nose gear leg collapsed toward the rear, resulting in the nose wheel shearing off from the aircraft.

The investigation

Following the incident, an examination of the nose landing gear assembly was conducted. Investigators found that the teeth on the retraction cog had been stripped. The pilot suggested that the intense vibration experienced during the landing caused the overcentre mechanism—which is intended to lock the gear in the extended position—to release. It was noted that while a modification had previously been installed on the aircraft to secure the gear crank handle and prevent such a release, this modification was not in use at the time of the accident.

Probable cause

The nose landing gear collapsed because the overcentre mechanism released due to heavy vibration from a firm touchdown, leading to the stripping of the retraction cog teeth.

Frequently asked questions

What happened in the 2001-07-15 RUTAN LONG-EZ accident near Wycombe Air Park, Buckinghamshire, GB?

A Rutan Long-Ez experienced a nose wheel separation during a private landing at Wycombe Air Park due to a mechanical failure in the landing gear mechanism.

What aircraft was involved and where did it happen?

The accident on 2001-07-15 involved a RUTAN LONG-EZ, registration G-LUKE, at Wycombe Air Park, Buckinghamshire, GB.

What was the probable cause of the accident?

The nose landing gear collapsed because the overcentre mechanism released due to heavy vibration from a firm touchdown, leading to the stripping of the retraction cog teeth.

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