Final Approach Threshold Transponder 
Pilot Institute
SEPTEMBER 24, 2024
The aerials are in a position that provides a threshold crossing height of 50ft. Approach Lighting System (ALS) The ALS helps the pilot transition from instrument flying to visual flying. It consists of lights that start at the landing threshold and extend into the approach area.
Aerotime
DECEMBER 27, 2024
The International Air Transport Association (IATA) differentiates an accident from an incident by imposing a threshold of aircraft damage set at $1 million. During the landing, following an excessive pitch-up movement by the aircraft, its aft fuselage contacted the runway approximately 326 meters (1,070ft) beyond the runway threshold.
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