The first Soyuz mission was marred with setbacks, technical issues, and ultimately became the first time a person died during a spaceflight. Komarov launched on an intended multi-day flight. Before launch, 203 significant design issues were found with Soyuz. Politburo pressure for a series of space accomplishments that year forced the mission to go forward. Yuri Gagarin attempted to kick Komarov off the flight as he knew the Soviet leadership would not risk their hero; but Komarov refused to give up his seat to Gagarin, saying he knew the mission was doomed but could not allow Gagarin to give his life. Shortly after reaching orbit, the problems began. A solar panel didn't deploy, leaving the craft with severe power issues. Thunderstorms overnight on the ground forced the cancellation of the Soyuz 2 mission which was to dock with Soyuz 1. As failures mounted, the decision was made to land Soyuz 1 early. After reentering, Soyuz's drogue parachute deployed as planned, but the main chute failed to unfurl. Komarov manually deployed the backup chute, which became entangled in the still-attached main chute. Soyuz 1 impacted the ground at 140 km/h, killing Komarov instantly. Soyuz 1 was the first of to-date four fatal in-flight space accidents world-wide, with the others being Soyuz 11, STS-51-L/Challenger, and STS-107/Columbia.