Final Report on Tatarstan B735 at Kazan on Nov 17th 2013
Probable causes of the Tatarstan B735 at Kazan on Nov 17th 2013 crash were systemic weaknesses in identifying and controlling the levels of risk, non-functional safety management system in the airline and lack of control over the level of crew training by aviation authorities at all levels (Tatarstan Civil Aviation Authority, Russian Civil Aviation Authority), that resulted in an unqualified crew being assigned to the flight.
During the go-around the crew failed to recognize that the autopilot had disconnected resulting in the aircraft impacting ground in a complex spatial position (nose up upset). The captain, pilot flying, lacked the skills to recover the aircraft from the complex spatial upset (lack of Upset Recovery), that led to significant negative G-forces, loss of spatial orientation sending the aircraft into a steep drive (75 degrees nose down) until impact with ground.
The go around was required because the aircraft on its final approach arrived in a position from which landing was impossible as result of a map shift by about 4000 meters (aircraft systems determining the position of the aircraft in error), the inability of the crew in those circumstances to combine aircraft control and navigation with needed precision, and the lack of active support by air traffic control during prolonged observation of significant deviation from the approach procedure.
Download final pdf (Russian): report_vq-bbn.pdf