Casualties unknown

Night Landing Incident Involving Wildlife at Runway 07 (N33797)

St. Ignace, MI, US

On December 28, 1990, a Piper PA-32-260 (registration N33797) operated by Great Lakes Air was involved in an aviation accident near St. Ignace, MI. Investigators recorded the probable cause as: The pilot's failure to see and avoid a deer on the runway during night operations, which resulted in damage to the left main landing gear. 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

During a night landing on runway 07, the pilot avoided an initial deer crossing but struck a second animal, shearing off the left main landing gear and causing additional damage upon touchdown.

What happened

The incident occurred during a nighttime approach to runway 07. As the aircraft was descending for landing, a deer crossed directly in front of the flight path. The pilot reacted promptly by applying additional power to abort the immediate impact with the first animal. However, shortly after this maneuver, a second deer entered the runway environment. This second animal made contact with the airplane structure, specifically shearing off the left main landing gear. The loss of structural integrity in the landing gear assembly led to further damage as the aircraft completed its landing sequence.

The investigation

Examination of the wreckage confirmed that the primary mechanical failure originated from wildlife impact. The left main landing gear was found detached from the airframe, consistent with a high-energy collision with an animal. Additional structural damage was noted in the area surrounding the landing gear well and associated systems, resulting directly from the gear's loss during the final phase of flight.

Findings

The sequence of events indicates that wildlife hazards on the runway environment were the primary factor in this incident. The pilot's initial decision to add power successfully avoided the first animal but placed the aircraft in a vulnerable configuration for the second encounter. The loss of the left main landing gear was a direct consequence of striking the second deer. No other mechanical failures or weather-related issues contributed to the outcome.

Probable cause

The pilot's failure to see and avoid a deer on the runway during night operations, which resulted in damage to the left main landing gear.

Frequently asked questions

What happened in the 28 Dec 1990 Piper PA-32-260 accident near St. Ignace, MI?

During a night landing on runway 07, the pilot avoided an initial deer crossing but struck a second animal, shearing off the left main landing gear and causing additional damage upon touchdown.

What aircraft was involved and where did it happen?

The accident on 28 Dec 1990 involved a Piper PA-32-260, registration N33797, operated by Great Lakes Air, at St. Ignace, MI.

What was the probable cause of the accident?

The pilot's failure to see and avoid a deer on the runway during night operations, which resulted in damage to the left main landing gear.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001212X24749. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.