Casualties unknown

Hard Landing Results in Gear Collapse and Runway Excursion (N9710B)

Lancaster, CA, US

On August 21, 1997, a Cessna 172RG (registration N9710B) was involved in an aviation accident near Lancaster, CA. Investigators recorded the probable cause as: The pilot's improper decision to continue the approach despite hard landing conditions, which resulted in the collapse of the left main landing gear and subsequent runway excursion. 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 2026-06-21Data APIEditorial standards

Aircraft sustained significant damage after a hard landing with crosswinds caused the left main gear to collapse and the plane to veer off the runway.

What happened

The pilot executed a landing that resulted in a hard impact with the runway surface. Immediately following touchdown, the left main landing gear collapsed, causing the aircraft to veer sharply to the left and depart the paved surface. At the time of the incident, the air traffic control tower reported wind conditions from 220 degrees at 18 knots.

The investigation

During post-accident interviews, the pilot stated that the landing gear position indicator lights had confirmed the gear was down prior to touchdown. However, the structural failure of the left main gear suggests a potential discrepancy between the indication and the actual mechanical status or load bearing capacity during impact.

Findings

The primary factors contributing to this accident were the hard landing technique and the crosswind conditions. The collapse of the landing gear was a direct result of the excessive vertical load applied during touchdown. Crosswind component likely exacerbated the difficulty in maintaining directional control after the gear failure.

Probable cause

The pilot's improper decision to continue the approach despite hard landing conditions, which resulted in the collapse of the left main landing gear and subsequent runway excursion.

Frequently asked questions

What happened in the 21 Aug 1997 Cessna 172RG accident near Lancaster, CA?

Aircraft sustained significant damage after a hard landing with crosswinds caused the left main gear to collapse and the plane to veer off the runway.

What aircraft was involved and where did it happen?

The accident on 21 Aug 1997 involved a Cessna 172RG, registration N9710B, at Lancaster, CA.

What was the probable cause of the accident?

The pilot's improper decision to continue the approach despite hard landing conditions, which resulted in the collapse of the left main landing gear and subsequent runway excursion.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001208X08685. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.