Cargo aircraft crash following takeoff from Detroit

No fatalities • Detroit-Metropolitan-Wayne County, United States of America • Takeoff (climb)

A cargo flight departing from Detroit crashed shortly after takeoff due to aerodynamic stall, resulting in no fatalities but total loss of the aircraft.

What happened

During a scheduled cargo operation traveling from Detroit to Wilmington, an aircraft departed from runway 21L. At the time of departure, the plane was loaded near its maximum allowable gross weight of 48,000 pounds, specifically weighing approximately 20 pounds under that limit.

As the flight crew initiated the climb, the aircraft reached an altitude of roughly 200 feet when the crew experienced significant vibrations. The aircraft subsequently entered a stall and impacted a field situated 2,050 feet beyond the runway threshold. Following the impact, the plane slid for approximately 448 feet, during which time both wings were partially severed. While the two pilots managed to evacuate the wreckage, the aircraft was a total loss.

Findings

The investigation concluded that the crash was caused by a loss of lift during the takeoff phase. This aerodynamic failure was attributed to ice accumulation on the airframe. Specifically, investigators found that the wings retained a 3 mm layer of ice because the deicing procedures performed prior to departure were insufficient and the preflight inspection failed to identify the buildup.

Probable cause

Inadequate deicing and improper preflight inspection led to ice accumulation on the wings, causing a loss of lift during takeoff.

Frequently asked questions

What happened in the 1964-11-20 Curtiss C-46 Commando accident near Detroit-Metropolitan-Wayne County, United States of America?

A cargo flight departing from Detroit crashed shortly after takeoff due to aerodynamic stall, resulting in no fatalities but total loss of the aircraft.

Were there any fatalities in the 1964-11-20 Curtiss C-46 Commando accident?

No fatalities were recorded in this accident.

What aircraft was involved and where did it happen?

The accident on 1964-11-20 involved a Curtiss C-46 Commando, registration N3971B, operated by Zantop Air Transport, at Detroit-Metropolitan-Wayne County, United States of America.

What was the probable cause of the accident?

Inadequate deicing and improper preflight inspection led to ice accumulation on the wings, causing a loss of lift during takeoff.

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