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Pilot Loses Directional Control During Landing Roll, Ground Loops on Runway 09 (N63622)

Mammoth Lakes, CA, US

On September 22, 1991, a Cessna 180K (registration N63622) operated by James Schulz was involved in an aviation accident near Mammoth Lakes, CA. No fatalities were reported. Investigators recorded the probable cause as: The pilot's failure to maintain directional control during the landing roll. 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 2026-07-04Data APIEditorial standards

During landing roll on Runway 09, the pilot failed to maintain directional control, causing the aircraft to ground loop and exit the runway environment. No mechanical issues were reported.

Incident Overview

During the landing roll on Runway 09, a 7,000-foot-long by 100-foot-wide runway, the pilot experienced a loss of directional control. The aircraft ground looped and exited to the left of the runway environment. The pilot did not report any mechanical malfunctions or failures with the airplane.

Pilot Information

The pilot reported having logged 14.5 hours of flight time in the accident aircraft make and model. He indicated that the surface winds were from 120 degrees at 5 knots, gusting to 10 knots.

Findings

No mechanical issues were identified. The loss of control occurred during the landing roll without any reported anomalies with the aircraft systems or structure.

Probable cause

The pilot's failure to maintain directional control during the landing roll.

Frequently asked questions

What happened in the 22 Sept 1991 Cessna 180K accident near Mammoth Lakes, CA?

During landing roll on Runway 09, the pilot failed to maintain directional control, causing the aircraft to ground loop and exit the runway environment. No mechanical issues were reported.

Were there any fatalities in the 22 Sept 1991 Cessna 180K accident?

No fatalities were recorded in this accident.

What aircraft was involved and where did it happen?

The accident on 22 Sept 1991 involved a Cessna 180K, registration N63622, operated by James Schulz, at Mammoth Lakes, CA.

What was the probable cause of the accident?

The pilot's failure to maintain directional control during the landing roll.

More accident analyses

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001212X18129. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.