Aircraft collides with mowing vehicle during landing at Vitry-le-François

Casualties unknown • Conséquences, FR

A Robin DR400 struck an unlit mowing vehicle on the runway threshold at Vitry-le-François, resulting in heavy aircraft damage and injuries to the vehicle driver.

What happened

On July 2, 2012, at approximately 19:50 local time, a Robin DR400, registration F-GSBA, was performing circuit patterns at the Vitry-le-François aerodrome. After completing two touch-and-go maneuvers on runway 05, the pilot transitioned to the downwind leg for a full landing on runway 29. Shortly after touchdown, the aircraft collided with a mowing vehicle located approximately 200 meters from the runway threshold. The impact caused the right wing of the Robin DR400 to be torn off and overturned the vehicle. The driver of the vehicle sustained injuries, and the aircraft was heavily damaged.

The investigation

The investigation established that the driver of the 400 kg orange vehicle was performing runway maintenance in preparation for an upcoming model aircraft event. While the driver had verbally notified the aero club president of the intent to mow the runway during the week, no formal coordination ensured the pilot was aware of the obstruction. The driver had also informed the aerodrome operator and local club members that work was beginning that day. However, the driver, who lacked aviation experience, was not wearing a high-visibility vest and the vehicle was not marked with any warning lights or markings.

Regarding aeronautical information, the pilot had checked the local instruction board and current NOTAMs, but no notice regarding the occupation of runway 29 was published. The aerodrome operator, seeing the work in progress, assumed the activity had already been coordinated with the aero club and therefore did not notify the aeronautical information service (SIA) to issue a NOTAM.

Findings

  • The primary cause of the collision was the pilot's failure to detect the vehicle on the runway.
  • Contributing factors included the absence of a NOTAM restricting runway availability.
  • The lack of markings or lighting on the vehicle made it difficult to identify.
  • Lighting conditions, specifically the low sun angle, may have affected visibility.
  • The pilot may have been focused on flight parameters during the final approach at the expense of external scanning.
  • A lack of effective coordination between the aerodrome operator, the aero club, and the aeronautical services prevented the dissemination of critical safety information.

Probable cause

The collision was caused by the pilot's failure to detect the vehicle on the runway, exacerbated by the lack of a NOTAM, the absence of vehicle markings, and poor coordination between the aerodrome operator and the pilot.

Frequently asked questions

What happened in the 2012-07-02 Robin DR400 accident near Conséquences, FR?

A Robin DR400 struck an unlit mowing vehicle on the runway threshold at Vitry-le-François, resulting in heavy aircraft damage and injuries to the vehicle driver.

What aircraft was involved and where did it happen?

The accident on 2012-07-02 involved a Robin DR400, at Conséquences, FR.

What was the probable cause of the accident?

The collision was caused by the pilot's failure to detect the vehicle on the runway, exacerbated by the lack of a NOTAM, the absence of vehicle markings, and poor coordination between the aerodrome operator and the pilot.

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