Casualties unknown

Collision Between Two Aircraft During Group Formation Flight (N73708)

Camp Verde, AZ, US

On April 14, 1985, a Cessna 172M (registration N73708) operated by Southwest Flite Center was involved in an aviation accident near Camp Verde, AZ. 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

Two aircraft, N6439R and N73708, collided during a four-plane formation flight en route to a fly-in. N6439R, piloted by a COM/CFII-rated pilot, had been maneuvering close to the other aircraft before the collision.

Event Description

Two aircraft involved in the collision were part of a four-plane formation flight en route to a group fly-in. During the flight, N6439R was observed to change positions several times, while the other aircraft remained stable. Witnesses reported that N6439R made 'close approaches' and 'cross unders' of the other aircraft in the flight.

Pilot Statements

The pilot of N73708 stated that from off his right side, N6439R banked left to approach his aircraft. When the bank angle of N6439R had not changed at a distance of 50 yards, the pilot of N73708 said he initiated a hard evasive left turn. However, the propeller of N6439R struck the bottom of his aircraft.

The version of events provided by the pilot of N6439R was in disagreement with the evidence and the majority of witness accounts.

Witness Accounts

All three of the 100-hour private pilots involved in the formation reported that they were uncomfortable with the actions of the pilot of N6439R. However, they said that because he held a Commercial Pilot certificate with a Certified Flight Instructor Instrument (COM/CFII) rating and had 900 hours of flight time, they thought 'he knew what he was doing.'

Frequently asked questions

What happened in the 14 Apr 1985 Cessna 172M accident near Camp Verde, AZ?

Two aircraft, N6439R and N73708, collided during a four-plane formation flight en route to a fly-in. N6439R, piloted by a COM/CFII-rated pilot, had been maneuvering close to the other aircraft before the collision.

What aircraft was involved and where did it happen?

The accident on 14 Apr 1985 involved a Cessna 172M, registration N73708, operated by Southwest Flite Center, at Camp Verde, AZ.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001214X36208. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.