posted on Mar, 5 2020 @ 07:25 AM
Investigators detailed the descent that caused the aircraft to catch a false glideslope. The aircraft was at 18,000 feet over waypoint RAXAT, when
they were cleared to descend to 6,000 to pass TOPKA. That gave them 27nm to lose 12,000 feet. A normal descent, following the airline's procedures
would have allowed them to lose 9,000 feet in that time.
Instead of deploying speedbrakes, as they should have, the crew used various autopilot modes, and allowed the speed to increase to 317 knots. They
were at 9200 feet and 270 knots over TOPKA. This resulted in them being high for the rest of the descent, and capturing a false 9° glideslope that
took them over the airport and into the village.