Casualties unknown

1998-10-11: Cessna 172M (N172JF) — W.l. Frank L.l.c. — Oklahoma City, OK

Oklahoma City, OK, US

On October 11, 1998, a Cessna 172M (registration N172JF) operated by W.l. Frank L.l.c. was involved in an aviation accident near Oklahoma City, OK. Investigators recorded the probable cause as: Suicide. 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 1781061362Data APIEditorial standards

An airplane accident near a church has been ruled a suicide by the medical examiner. The pilot had received a marriage proposal rejection the previous night. Toxicology detected diazepam. No mechanical issues were found.

Accident Sequence

Witnesses reported seeing the airplane enter a steep bank and descend vertically to the ground. After the accident, an examination of the airframe and engine found no mechanical discrepancies that would have prevented normal operation.

Prior to departure, the operator observed the airplane taxiing for takeoff at a high speed. The operator contacted the air traffic control tower and requested that a message be relayed to the pilot to return to the ramp. However, the airplane had already taken off by the time the message was relayed. The pilot acknowledged receiving the message, but radar data indicated that the airplane did not turn back toward the airport. Instead, it continued to the accident site.

Background

The accident site was located adjacent to a church where a friend of the pilot was attending services. According to reports, the friend had declined a marriage proposal from the pilot the night before the accident.

Toxicology

The medical examiner classified the pilot's death as a suicide. Toxicological testing detected diazepam (Valium) and nordiazepam, a metabolite of diazepam, in tissue samples. Specifically, 0.028 ug/ml diazepam was found in kidney tissue, 0.077 ug/ml in liver tissue, along with 0.134 ug/ml nordiazepam in liver tissue and 0.069 ug/ml in kidney tissue. The Federal Aviation Administration does not approve the use of diazepam by pilots.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001211X11252. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.