According to recommendations, the pilots did not coordinate their actions during the helicopter accident that occurred in Finland, which caused one of the helicopters to collide with the other while starting its maneuver too early. #Финляндия #крушениевертолета #авиационнаябезопасность (translated)
Заключительный отчет о крушении вертолетов в Финляндии: перед столкновением пилоты не общались между собой
