Ground collision is a collision that occurs while an aircraft is taxiing to or from a runway in use. This collision includes crashing with aircraft, people, ground vehicles, obstacles, buildings, structures, etc.
ICAO calls GCOLs event categories. This is a category used to classify events (i.e. accidents or incidents) at a high level to enable data analysis to support safety solutions. It is important to note that ICAO classifies pushback, powerback and towing events as RAMP events. Collisions that occur while the aircraft is moving under its own power in a gate, ramp, or tie-down area (excluding powerbacks) are encoded as GCOL.
The GCOL event category is one of several categories. Other categories are:
They’re classified by ICAO as relevant to runway safety. Runway safety incidents have been identified by ICAO as one of three high-risk accident categories. Other high-risk categories are:
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Safety Improvement Sub-Group SISG scenario analysed 20 ground safety events, including both RIs and ground crashes. Some events were accidents, some were incidents, below are examples of areas and risk aspects reviewed:
Auto-GCAS was developed jointly by Lockheed Martin Skunk Works, the Air Force Research Laboratory, and the National Aeronautics and Space Administration (NASA), Auto GCAS is designed to reduce accidents known as Controlled Flight into Terrain (CFIT). According to U.S. Air Force statistics, CFIT incidents account for 26% of aircraft losses and 75% of all F-16 pilot fatalities.
The system consists of a complex suite of collision avoidance and autonomous decision-making algorithms that use precise navigation, aircraft performance and onboard digital terrain data to determine if a ground collision is imminent. To do. If the system predicts an imminent collision, it will command an autonomous avoidance maneuver (wing level roll and +5 g drag) as a last resort to avoid a ground impact.
Auto-GCAS runs in the background and automatically provides protection even if the pilot is distracted, tired of the task, incapacitated or unconscious. Although the system has a pilot override feature, no pilot action is required.
A Boeing 737-200 took off from Runway 36 at the Washington National during the day in moderate snowfall, but stalled before colliding with a bridge or vehicle, leaving only 1 After a minute’s flight, it plunged into the river below, killing most of the inmates and some people on the ground. The accident was entirely due to a combination of crew actions and omissions related to the prevailing adverse weather conditions and, most importantly, failure to select engine anti-ice, resulting in an over-reading of actual engine thrust.
On April 14, 2011, a Boeing 737-800 did not leave enough space while taxiing behind a stationary Boeing 767-300 in Barcelona, causing the 737’s wingtip to hit the 767’s tailplane. collided and damaged both. The 767 crew were unaware of the collision, while the 737 crew were aware of the proximity but dismissed flight attendant reports that passengers witnessed the collision. Both aircraft completed their scheduled flights without incident, but damage was subsequently discovered that required repair before the 767 could be flown further.
Dassault Falcon 7X was maneuvered into an unmarked parking position after arriving at London City Airport, when it was erroneously steered into another manned stationary aircraft. Crashed and severely damaged. Investigation revealed that the affected apron was congested, and although the aircraft had been maneuvered with the assistance of wingwalkers in accordance with airport procedures, the sharp corrective turn that produced the “wing growth effect” was a collision hazard. and concluded that the signal was given at the end of the minute by a pedestrian on the wing involved and was not seen by the flight assistant.
A Boeing 787 taxiing to depart Singapore at night was involved in a minor collision with a parked Airbus A380 that had just been pushed back from the gate and was about to depart. An investigation determined that the cause of the collision was poor control of the GND by the trainee under his supervision and inadequate caution by the crew of his 787 in the face of a possible collision with the A380. concluded to be the cause. The safety recommendations made were primarily related to ATC procedures where it was considered that there was room for improvement in risk management.
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