Poland's air force chief was responsible for the plane crash that killed president Lech Kaczynski and 95 others in Russia nine months ago, according to a report released Wednesday, DPA reported.
The document compiled by the Interstate Aviation Committee (MAK), said Air Force Commander Andrez Blasik barged into the cockpit while drunk and ordered the pilot to land despite bad weather.
Russian air traffic controllers had earlier advised against a landing, because of heavy fog and poor visibility at the airport in Smolensk.
The plane was carrying Kaczynski and other top officials to a ceremony commemorating the Soviet massacre of Polish officers in Katyn when it crashed on April 10, 2010 into woods in Smolensk.
The report said Blasik had an alcohol level of 0.6 promille.