Casualties unknown

Formation Flight Collision Between Two Cessna 152 Aircraft (N6469M)

Dixon, CA, US

On July 20, 1988, a Cessna 152 (registration N6469M) operated by Patterson Aircraft Co. was involved in an aviation accident near Dixon, CA. Investigators recorded the probable cause as: A loss of separation between two aircraft during close formation flight, resulting in a collision between the right wing of one aircraft and the left main landing gear of the other. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 9 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

Two Cessna 152 aircraft collided during close formation flight when the right wing of one plane struck the left main landing gear of the other. Both pilots landed safely despite varying levels of damage to their respective airframes.

What happened

The incident occurred while two Cessna 152 aircraft were engaged in a close formation flight. According to the pilot reports, the right wing of one aircraft, identified as N6469M, raised upward and made contact with the left main landing gear of the other aircraft, N6239H.

Despite the physical impact between the two planes, both pilots maintained control of their respective aircraft. The pilot of N6469M reported substantial damage to the wing structure following the collision. Meanwhile, the pilot of N6239H sustained minor damage to the landing gear assembly. Both pilots successfully completed landings without further incident.

The investigation

The investigation relied primarily on statements provided by the pilots involved in the formation flight. No mechanical failure or pre-existing condition was cited as a cause for the separation error. The focus remained on the spatial awareness and coordination between the two aircraft during the maneuver.

Probable cause

A loss of separation between two aircraft during close formation flight, resulting in a collision between the right wing of one aircraft and the left main landing gear of the other.

All Cessna 152 accidents →

Frequently asked questions

What happened in the 20 Jul 1988 Cessna 152 accident near Dixon, CA?

Two Cessna 152 aircraft collided during close formation flight when the right wing of one plane struck the left main landing gear of the other. Both pilots landed safely despite varying levels of damage to their respective airframes.

What aircraft was involved and where did it happen?

The accident on 20 Jul 1988 involved a Cessna 152, registration N6469M, operated by Patterson Aircraft Co., at Dixon, CA.

What was the probable cause of the accident?

A loss of separation between two aircraft during close formation flight, resulting in a collision between the right wing of one aircraft and the left main landing gear of the other.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001213X26284. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.