Casualties unknown

Cessna 421B and Cessna 152 Collide at Intersection of Runways 17 and 22 (N450SU)

Stillwater, OK, US

On July 2, 1996, a Cessna 421B (registration N450SU) was involved in an aviation accident near Stillwater, OK. Investigators recorded the probable cause as: the failure of the pilots of the Cessna 421B, N450SU, and the Cessna 152, N94532, to maintain visual lookout. 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

A Cessna 421B and a Cessna 152 collided at the intersection of runways 17 and 22 at an uncontrolled airport. Both pilots had announced intentions, and a witness reported the Cessna 152 landed long and veered right.

Accident Overview

A Cessna 421B, registration N450SU, and a Cessna 152, registration N94532, collided at the intersection of runways 17 and 22 during landing rolls. The Cessna 421B was making a full stop landing on runway 17, while the Cessna 152, flown by a student pilot on his second supervised solo, had landed on runway 22.

Airport and Communication

The airport was uncontrolled and equipped with Unicom service, reported to be operational at the time of the accident. Both aircraft were equipped with operational two-way radios, and both pilots stated that they announced their intentions prior to landing.

Witness Observations

A witness at the airport observed the collision. The witness stated that the Cessna 152 landed long and maintained a high rate of speed during the landing roll on runway 22. The Cessna 152 stayed on the runway centerline and began to veer to the right as it approached the intersection. The witness also reported observing the Cessna 421 applying heavy braking as the pilot tried to veer to the right to avoid the Cessna 152.

Aircraft and Pilot Information

The Cessna 421B is a twin-engine aircraft. The Cessna 152 is a single-engine aircraft. The student pilot in the Cessna 152 was on his second supervised solo flight. The source does not specify any injuries, damage, or further details about the aircraft or pilots.

Frequently asked questions

What happened in the 2 Jul 1996 Cessna 421B accident near Stillwater, OK?

A Cessna 421B and a Cessna 152 collided at the intersection of runways 17 and 22 at an uncontrolled airport. Both pilots had announced intentions, and a witness reported the Cessna 152 landed long and veered right.

What aircraft was involved and where did it happen?

The accident on 2 Jul 1996 involved a Cessna 421B, registration N450SU, at Stillwater, OK.

What was the probable cause of the accident?

the failure of the pilots of the Cessna 421B, N450SU, and the Cessna 152, N94532, to maintain visual lookout. Factors were: the inadequate radio communications maintained by both pilots, and the failure of the student pilot of the Cessna 152 to take evasive action.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001208X06211. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.