Ultralight Crash in Chonburi Kills Pilot Due to Wing Fabric Failure
An X-AIR HAWK ultralight crashed in Chonburi, Thailand, killing the pilot and injuring a passenger. The accident was caused by deteriorated wing fabric and…
On December 27, 1968, a Douglas DC-9 (registration N974Z) operated by Ozark Air Lines was involved in an aviation accident near Sioux City, United States of America during takeoff. No fatalities were reported. Investigators recorded the probable cause as: A stall near the upper limits of ground effect, with subsequent loss of control as a result of aerodynamic and weight penalties of airfoil icing. The flight crew failed to have the airfoil ice removed prior to the attempted take-off from Sioux City. 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.

An aircraft crashed while taking off from Sioux City Airport, Iowa, with no fatalities. The flight crew was aware of wing ice, and the aircraft rolled violently before the captain aborted the takeoff.
A stall near the upper limits of ground effect, with subsequent loss of control as a result of aerodynamic and weight penalties of airfoil icing. The flight crew failed to have the airfoil ice removed prior to the attempted take-off from Sioux City. The Board also finds that the crew selected an improper takeoff thrust for the existing gross weight condition of the aircraft.
An X-AIR HAWK ultralight crashed in Chonburi, Thailand, killing the pilot and injuring a passenger. The accident was caused by deteriorated wing fabric and…
A Challenger II Special ultralight aircraft (U-B23) landed off-runway at Pai Airport, Mae Hong Son, on September 17, 2024, due to a gust of wind. No injuries…
The Polish aviation safety authority is investigating a serious incident involving an AT-3R100 aircraft that occurred on September 2, 2024. The investigation…
A SZD-48-3 glider suffered damage when its left wing struck a ground obstacle during a low final approach at EPWK on June 20, 2025. The pilot was uninjured.
A 39-year-old skydiver died after a hard landing near Leszno on May 1, 2026. The PKBWL preliminary report indicates the fatal impact resulted from a late,…
A student pilot crashed an SZD-50-3 Puchacz glider into the airfield fence during a solo training flight on June 6, 2026. The pilot was uninjured, but the…