Casualties unknown

Student Pilot Crashes into Lake After Low-Level Approach (N46193)

Berthoud, CO, US

On February 2, 1986, a Cessna 152 (registration N46193) was involved in an aviation accident near Berthoud, CO. Investigators recorded the probable cause as: The student pilot's failure to maintain adequate terrain clearance during a low-altitude approach in deteriorating visual conditions (sunset and glassy water), resulting in a controlled flight into terrain (water). This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 8 related events involving the same aircraft type or operator are linked below.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-06-22Data APIEditorial standards

A student pilot with 57 hours of experience crashed a rented aircraft into a lake during sunset conditions, striking the water with the right main landing gear and wing tip before nosing over.

What happened

A student pilot had rented an aircraft from a flying club for a flight. Witnesses observed the aircraft approaching a body of water from the south end at a low altitude. The plane struck the surface of the lake, impacting first with the right main landing gear and the tip of the right wing. Following the impact, the aircraft nosed over into the water.

The environmental conditions at the time were noted by witnesses as having "glassy" water, which can make depth perception difficult for pilots. Additionally, the sun had already set, reducing visibility and contrast. The student pilot involved in the accident had accumulated a total of 57 flight hours at the time of the incident.

The investigation

The physical evidence indicated a low-altitude approach that resulted in a water impact. The specific point of initial contact was identified as the right main landing gear and the right wing tip, leading to the subsequent nosing over of the aircraft. The glassy water surface and sunset lighting conditions were significant factors in the environment during the accident sequence.

Findings

The accident occurred during the landing phase or low-level maneuvering near a lake. Contributing factors included the pilot's limited experience with only 57 total flight hours, the challenging visual conditions caused by glassy water and sunset lighting, and the decision to operate at a low altitude in such an environment.

Probable cause

The student pilot's failure to maintain adequate terrain clearance during a low-altitude approach in deteriorating visual conditions (sunset and glassy water), resulting in a controlled flight into terrain (water).

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Frequently asked questions

What happened in the 2 Feb 1986 Cessna 152 accident near Berthoud, CO?

A student pilot with 57 hours of experience crashed a rented aircraft into a lake during sunset conditions, striking the water with the right main landing gear and wing tip before nosing over.

What aircraft was involved and where did it happen?

The accident on 2 Feb 1986 involved a Cessna 152, registration N46193, at Berthoud, CO.

What was the probable cause of the accident?

The student pilot's failure to maintain adequate terrain clearance during a low-altitude approach in deteriorating visual conditions (sunset and glassy water), resulting in a controlled flight into terrain (water).

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001213X32837. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.