2 fatalities

Two Occupants Killed in Norman, Oklahoma Go-Around Crash (N6139X)

Norman-University of Oklahoma Westheimer, United States of AmericaLanding (descent or approach)

On June 28, 1983, a Rockwell Grand Commander 680 (registration N6139X) operated by Kansas Aircraft Corporation was involved in an aviation accident near Norman-University of Oklahoma Westheimer, United States of America during landing or approach. 2 people were killed. Investigators recorded the probable cause as: Occurrence #1: loss of control - in flight Phase of operation: go-around (VFR) Findings 1. (c) reason for occurrence undetermined - pilot in command ---------- Occurrence #2: in flight collision with terrain/water Phase of operation: descent - uncontrolled. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 1 related events involving the same aircraft type or operator are linked below.

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary reportUpdated 2026-06-11Data APIEditorial standards

An aircraft on a cross-country flight crashed after initiating a go-around at Norman, Oklahoma. Both occupants were killed. The cause of the loss of control was undetermined.

Accident Overview

An aircraft on a cross-country flight from Dallas, Texas to Wichita, Kansas crashed after starting a go-around or aborted landing at Norman, Oklahoma. Air traffic control had cleared the aircraft to land, but no further radio communication was received. Witnesses reported that the approach appeared normal until short final, when the aircraft suddenly turned right, leveled, then entered a steep climbing right turn, continued rolling until inverted, and pitched nose down until impact.

Flight History

The aircraft had recently been sold, and the identity and location of the owner were not established. No one claimed the wreckage. The pilot in the right seat had reportedly worked late the previous night installing what appeared to be an auxiliary fuel system in the cabin.

Wreckage and Impact

Examination of the wreckage revealed that both propellers were rotating at high rpm at impact, indicating significant engine power. A post-crash fire burned most intensely and persistently in the center of the cabin, where the remains of what appeared to be an auxiliary fuel system were found. No evidence of pre-impact malfunctions or failures was discovered.

Injuries and Official Findings

Both occupants were killed in the accident. The official probable cause stated that the loss of control during go-around (VFR) was due to an undetermined reason associated with the pilot in command. The subsequent collision with terrain occurred during an uncontrolled descent.