Tehran, Jul 12 (UNI) Iran said on Sunday that the misalignment of an air defence unit's radar system was the key "human error" that led to the accidental downing of an Ukrainian passenger plane in January.
"A failure occurred due to a human error in following the procedure" for aligning the radar, causing a "107-degree error" in the system, the Iranian Civil Aviation Organisation (CAO) said.
This error "initiated a hazard chain" that led to further errors in the minutes before the plane was shot down, said the CAO document, presented as a "factual report" and not as the final report on the accident investigation, as reported by Al Jazeera.