What happened
During an arrival from Ulan-Ude to Yakutsk-Platon Oyunsky International Airport, the flight crew prepared for landing on runway 23L. At the time of the incident, ongoing construction work had necessitated a displacement of the runway 05R threshold by 1,150 metres. This modification effectively shortened the available landing distance for runway 23L to 2,248 metres. Additionally, the touchdown zone lighting system for this runway was not operational.
As the aircraft approached, air traffic control notified the crew that the runway friction coefficient was 0.45. The landing was performed on runway 23L with a 4-knot tailwind. Upon touchdown, the crew applied braking, but the aircraft could not stop within the available runway length. The aircraft subsequently overran the runway and entered a construction zone, where it struck a junction of a concrete section that was being rebuilt. The impact caused the collapse of both main landing gear, with the left gear being completely detached from the airframe. The aircraft continued to slide for approximately 250 metres before coming to a halt. There were no fatalities among the 92 occupants, all of whom evacuated the aircraft safely. The aircraft sustained damage beyond repair.
Findings
- The available landing distance was reduced due to a displaced runway threshold caused by ongoing construction.
- The touchdown zone lighting system was unserviceable during the approach.
- The aircraft encountered a low friction coefficient of 0.45.
- The aircraft was unable to stop within the shortened runway distance following a landing with a slight tailwind.