Well at such a situation, he was obliged to contact, get approval. This is where this operator makes the mistake; but at that moment, his communication system was apparently disrupted – whether because of jamming systems or the high traffic. For that reason, he fails to contact [his commanders]. He had 10 seconds to decide; he could hit or not hit [the target]. Under such circumstances, he decides to make that bad decision; he engages, the missile is fired, and the plane is hit at this place.
IRGC Releases Details of Accidental Downing of Ukrainian Plane
Deliberate radio jamming may have contributed to this tragedy and be a larger factor than is stated.