Possible causes of disaster (3) – Pilot believed it was higher

On 10 April 2010, Polish military plane Tupolev 154M-101 crashed under Smolensk (Russia), killing all passengers and crew. The immediate origin of the accident was that erstwhile approaching landing, the plane was flying besides low. Why was the plane flying besides low in this phase of flight? Is it possible that erstwhile approaching the landing the pilot believed that he was higher than actually [...]