Casualties unknown

Airplane Dives Into Residence After Controlled Descent (N4312Q)

Tucson, AZ, US

On September 16, 2001, a Cessna 172L (registration N4312Q) was involved in an aviation accident near Tucson, AZ. Investigators recorded the probable cause as: the pilot's controlled descent into a residence for undetermined reasons. 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

An airplane entered a controlled descent, dove into a residence, and was consumed by post-crash fire. The pilot, who had personal issues and was on antidepressants, had never flown the aircraft before; authorities found no evidence of suicide.

Accident Sequence

Witnesses reported that the airplane was in a controlled descent before entering a nosedive and impacting a residence. The aircraft disappeared behind a tree line during the dive. A post-crash fire destroyed the airplane.

Background

The flight departed from a private airpark during a period following the September 11, 2001, terrorist attacks when VFR general aviation flights were prohibited. Local authorities were told that the pilot was having problems with his personal life. The pilot's wife informed authorities that the pilot had never flown the accident airplane before and that the airplane had not been flown for five years.

Toxicology and Investigation

Toxicological tests on samples from the pilot tested positive for prescription antidepressant medications. The sheriff's department found evidence that the pilot had threatened suicide in the past. However, neither the sheriff's department nor the medical examiner found evidence to support suicide, and the death was ruled accidental.

Frequently asked questions

What happened in the 16 Sept 2001 Cessna 172L accident near Tucson, AZ?

An airplane entered a controlled descent, dove into a residence, and was consumed by post-crash fire. The pilot, who had personal issues and was on antidepressants, had never flown the aircraft before; authorities found no evidence of suicide.

What aircraft was involved and where did it happen?

The accident on 16 Sept 2001 involved a Cessna 172L, registration N4312Q, at Tucson, AZ.

What was the probable cause of the accident?

the pilot's controlled descent into a residence for undetermined reasons.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20010920X01972. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.