Iran helicopter crash shows Tehran's reliance on an aging fleet

FILE - An Iranian woman holds a poster of the late President Ebrahim Raisi during a mourning ceremony for him at Vali-e-Asr square in downtown Tehran, Iran on May 20, 2024. FILE - The helicopter carrying Iranian President Ebrahim Raisi takes off at the Iranian border with Azerbaijan after President Raisi and his Azeri counterpart Ilham Aliyev inaugurated dam of Qiz Qalasi, or Castel of Girl in Azeri, Iran, on May 19, 2024.

By the time Iranian President Ebrahim Raisi boarded his window seat on a helicopter ferrying him, the foreign minister and six others, thick clouds already had begun forming around the mountaintops along the Azerbaijan-Iran border. Despite the worsening weather, the helicopter lifted off for a trip about 145 kilometers southwest to a new oil pipeline near Tabriz.