Casualties unknown

Aircraft Impacts Trees During Night ILS Approach (N1ZD)

Smiths Creek, MI, US

On January 4, 1993, a Cessna T337G (registration N1ZD) operated by Mowat, Douglas H. was involved in an aviation accident near Smiths Creek, MI. Investigators recorded the probable cause as: THE PILOT-IN-COMMAND'S FAILURE TO MAINTAIN CONTROL OF THE AIRPLANE DURING THE APPROACH. FACTORS WHICH CONTRIBUTED TO THE ACCIDENT WERE THE ADVERSE WEATHER CONDITIONS AND THE DARK NIGHT. 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 2026-06-22Data APIEditorial standards

An airplane struck trees and the ground during a night instrument landing system approach under IFR conditions, with no pre-impact mechanical anomalies detected.

What happened

The incident occurred at night under instrument flight rules (IFR) conditions while the aircraft was conducting an instrument landing system (ILS) approach to runway 4. During this phase of the operation, the airplane deviated from the intended flight path and impacted trees followed by the ground. The impact site was located approximately one-quarter mile west of the approach end of the runway.

The investigation

Post-accident examination of the aircraft revealed no pre-impact anomalies in the engines, propellers, airframe, or accessories. Investigators measured the angle from the initial impact crater through the broken limbs as 45 degrees, providing insight into the descent trajectory prior to the final collision with the terrain.

Findings

The primary finding was the uncontrolled descent and subsequent impact with trees and ground during a precision approach procedure. The absence of mechanical failures in critical systems suggests that the event was likely related to flight control or situational awareness rather than equipment malfunction.

Frequently asked questions

What happened in the 4 Jan 1993 Cessna T337G accident near Smiths Creek, MI?

An airplane struck trees and the ground during a night instrument landing system approach under IFR conditions, with no pre-impact mechanical anomalies detected.

What aircraft was involved and where did it happen?

The accident on 4 Jan 1993 involved a Cessna T337G, registration N1ZD, operated by Mowat, Douglas H., at Smiths Creek, MI.

What was the probable cause of the accident?

THE PILOT-IN-COMMAND'S FAILURE TO MAINTAIN CONTROL OF THE AIRPLANE DURING THE APPROACH. FACTORS WHICH CONTRIBUTED TO THE ACCIDENT WERE THE ADVERSE WEATHER CONDITIONS AND THE DARK NIGHT.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001211X11662. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.