Piper Cub wheel separation during airshow stunt at Nelspruit Aerodrome

Casualties unknown • Nelspruit Aerodrome, next to runway 22, ZA

A planned 'runaway aircraft' demonstration at the Emnotweni Lowveld Airshow resulted in a collision between a Piper Cub and an emergency fire vehicle.

What happened

During the Emnotweni Lowveld Airshow held on 8 June 2002, a planned comedic performance known as the "Crazy Flying Act" led to an unexpected aircraft accident. The demonstration involved a PIPER J3C-65, registration ZS-BID, performing a simulated out-of-control takeoff. The act began with a pilot interacting with a passenger disguised as a wealthy sheikh, after which the aircraft was intended to taxi and take off as part of the scripted sequence.

As the maneuver progressed, the pilot departed from the established flight plan. The aircraft performed a low-level turn toward the emergency response vehicles that were following the aircraft as part of the stunt. During this maneuver, the aircraft's right-hand main wheel struck the water cannon mounted on top of a fire vehicle. The impact caused the main wheel assembly to detach from the PIPER J3C-65. The detached assembly then bounced onto a Netcare 911 emergency vehicle, causing significant damage to that vehicle. The pilot subsequently performed an emergency landing on the grass adjacent to Runway 22. There were no fatalities, though the driver of the Netcare 911 vehicle sustained minor injuries.

The investigation

Investigators examined the coordination between the aircraft and the ground support units during the airshow. The inquiry focused on the execution of the "Crazy Flying Act," which required fire and medical vehicles to chase the aircraft down the runway to simulate a pursuit. The investigation looked into the specific flight path taken during the low-level turn and the movement of the emergency vehicles on the airfield.

Findings

  • The primary cause of the accident was the pilot's deviation from the pre-arranged flight plan during a low-altitude turn.
  • The emergency vehicles contributed to the incident by turning around on the runway to follow the aircraft, which deviated from their original instructions.
  • The collision between the aircraft's landing gear and the fire vehicle's water cannon directly resulted in the structural failure of the wheel assembly.

Probable cause

The accident was caused by the pilot performing an unplanned low-level turn that led to a collision with an emergency vehicle's water cannon, compounded by the emergency vehicles deviating from their intended path to follow the aircraft.

Frequently asked questions

What happened in the 2002-06-08 Piper J3C-65 accident near Nelspruit Aerodrome, next to runway 22, ZA?

A planned 'runaway aircraft' demonstration at the Emnotweni Lowveld Airshow resulted in a collision between a Piper Cub and an emergency fire vehicle.

What aircraft was involved and where did it happen?

The accident on 2002-06-08 involved a Piper J3C-65, registration ZS-BID, at Nelspruit Aerodrome, next to runway 22, ZA.

What was the probable cause of the accident?

The accident was caused by the pilot performing an unplanned low-level turn that led to a collision with an emergency vehicle's water cannon, compounded by the emergency vehicles deviating from their intended path to follow the aircraft.

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