Casualties unknown

Collision During Takeoff at Private Airport (N59791)

Mundelein, IL, US

On June 16, 1991, a Boeing A75N1 (registration N59791) operated by Ronald R. Nystrom was involved in an aviation accident near Mundelein, IL. Investigators recorded the probable cause as: THE PILOT-IN-COMMAND'S NOT MAINTAINING VISUAL CONTACT WITH THE PREVIOUSLY IDENTIFIED AIRPLANE. 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 antique biplanes collided on a private airport runway after pilots agreed to use opposite directions due to a homeowner's complaints about runway proximity.

Incident Overview

At a privately owned airport, pilots had agreed to take off to the south and land to the north in response to repeated complaints from a homeowner whose residence was located 120 feet from the threshold of the south runway. The pilot of an antique biplane was performing his pre-takeoff check when he observed another airplane, similar to his own, on downwind for the runway opposite his intended takeoff runway. He stated that he looked again for the flying airplane and did not see it. He then proceeded with the takeoff roll. Approximately halfway down the runway, his airplane collided with the previously observed airplane.

Pre-Accident Actions

The agreement to use opposing directions for takeoff and landing was made due to noise complaints from a homeowner living near the south runway threshold. The pilot of the biplane involved in the collision was aware of the other airplane's presence on downwind. After momentarily losing sight, he continued with his takeoff, resulting in the mid-runway collision.

Collision Details

The collision occurred approximately halfway along the runway. The source does not specify the extent of damage or any injuries. No further information regarding the aircraft, pilot, or environmental conditions is provided.

Frequently asked questions

What happened in the 16 Jun 1991 Boeing A75N1 accident near Mundelein, IL?

Two antique biplanes collided on a private airport runway after pilots agreed to use opposite directions due to a homeowner's complaints about runway proximity.

What aircraft was involved and where did it happen?

The accident on 16 Jun 1991 involved a Boeing A75N1, registration N59791, operated by Ronald R. Nystrom, at Mundelein, IL.

What was the probable cause of the accident?

THE PILOT-IN-COMMAND'S NOT MAINTAINING VISUAL CONTACT WITH THE PREVIOUSLY IDENTIFIED AIRPLANE.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001212X17226. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.