Investigation Summary
The flight was a special diplomatic mission to commemorate the 70th anniversary of the Katyn massacre. Despite being informed by the crew of a previously landed Yak-40 and Russian controllers that visibility at Smolensk had dropped to 400 meters—well below the airport's specific NDB approach minimums—the crew elected to attempt one approach. During the descent, the crew relied on the radio altimeter rather than the barometric altimeter. This was critical because the terrain before the runway drops into the Severny ravine; as the ground fell away, the radio altimeter showed an increasing or stable height even as the aircraft descended relative to the runway threshold. The Terrain Awareness and Warning System (TAWS) issued multiple 'PULL UP' warnings based on the closure rate with the rising terrain on the far side of the ravine, which the crew ignored, likely due to the misleading radio altitude readings. The Polish Commander-in-Chief of the Air Force was present in the cockpit, which investigators noted could have exerted psychological pressure. The aircraft struck a birch tree while in a slight climb but still below runway level, leading to the catastrophic wing failure.
Final Conclusions
The Russian Interstate Aviation Committee (MAK) final report (January 2011) concluded the immediate cause was the crew's failure to divert to an alternate airport despite being informed of weather below minima, and their descent below the minimum descent altitude without visual contact. The Polish Committee for Investigation of National Aviation Accidents (Miller Commission) report (July 2011) agreed on the CFIT cause but added that Russian controllers provided incorrect 'on track, on path' information to the crew despite the aircraft being off-course, and noted that the airport's lighting and equipment were deficient.
Photographic Evidence (1)
Video Analysis
No video analysis linked for this case file yet.
Airframe & Maintenance
Crew Experience
Captain
Arkadiusz Protasiuk
First Officer
Robert Grzywna
Systems & Failure Modes
TAWS (Terrain Awareness and Warning System)
The system provided multiple audible 'PULL UP' warnings which were ignored by the crew. The system's alerting logic was affected by the crew's use of incorrect barometric pressure settings (QFE/QNH) and reliance on the radio altimeter over varying terrain.
Radio Altimeter
The crew relied on the radio altimeter for altitude callouts over uneven terrain, leading to a false sense of height relative to the runway threshold.
RSP-6M2 Radar
The landing zone radar at Smolensk was found by Polish investigators to be potentially malfunctioning or mistuned, leading to incorrect guidance callouts.
Interesting Facts
- 01The crash killed the President of Poland, the First Lady, the Chief of the General Staff, and the President of the National Bank of Poland.
- 02The crew ignored multiple TAWS 'PULL UP' warnings during the final descent.
- 03Russian controllers repeatedly told the crew they were 'on track and path' when they were actually below the glide path.
- 04The 36th Special Aviation Regiment was disbanded following the accident due to identified training and organizational failures.
- 05Russia has refused to return the aircraft wreckage and original black boxes to Poland, citing ongoing domestic criminal investigations.
Safety Actions & Advisories
Disbandment of the 36th Special Aviation Regiment
The Polish government disbanded the unit responsible for VIP transport following reports of 'hasty and haphazard' training and preparation.
Transfer of VIP Transport
Official government flights were reassigned to the national commercial carrier, LOT Polish Airlines, to ensure adherence to civil safety standards.
Known Controversies & Unanswered Questions
Explosion Hypotheses
Reference ↗A 2016 Polish subcommittee led by Antoni Macierewicz alleged that the aircraft was destroyed by mid-air explosions, contradicting the 2011 official reports. These claims have been disputed by the original Polish investigators and external experts.
Withholding of Evidence
Reference ↗The Council of Europe has called on Russia to return the wreckage and black boxes, stating that the continued retention constitutes an abuse of rights and fuels speculation of a cover-up.