On 5 January, the Polish Air Force ended the grounding of its MiG-29 jet fighters.
All MiG-29s except those on quick reaction alert were grounded on 18 December, when a MiG-29A crash landed in a forest at the end of a low-visibility training flight in bad weather.
The 28-year-old pilot, who has flown 200 hours in MiG-29s and 200 in other aircraft, survived with only minor injuries.
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