Casualties unknown

Landing Gear Collapse Following Ground Loop on Runway 33 (N7764D)

Page, AZ, US

On July 1, 1997, a Piper PA-18-150 (registration N7764D) was involved in an aviation accident near Page, AZ. Investigators recorded the probable cause as: The pilot's inability to maintain directional control during the landing rollout, which resulted in a ground loop and subsequent collapse of the left main 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 2026-06-10Data APIEditorial standards

A pilot experienced a sudden ground loop to the right after landing on runway 33, resulting in the collapse of the left main landing gear. The aircraft was equipped with oversized tires.

What happened

Following a successful landing on runway 33, the pilot reported that the aircraft began drifting to the left toward the runway turnoff. Wind conditions at the time were from 040 degrees at 8 knots, with occasional gusts reaching 12 knots. As the airplane approached the turnoff area, it suddenly and sharply ground looped to the right.

During this violent maneuver, the left main landing gear collapsed under the stress. The aircraft sustained significant damage to the landing gear assembly due to the abrupt directional change and subsequent impact with the pavement.

The investigation

An FAA inspector conducted a thorough examination of the airplane following the incident. The inspection focused on the structural integrity of the landing gear and surrounding airframe components. The inspector found no evidence of pre-existing fatigue or corrosion that could have contributed to the failure. It was noted that the airplane was equipped with oversize tundra tires, which may have influenced the ground handling characteristics during the event.

Probable cause

The pilot's inability to maintain directional control during the landing rollout, which resulted in a ground loop and subsequent collapse of the left main landing gear.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001208X08418. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.