FILE PHOTO: General view of the debris of the Ukraine International Airlines, flight PS752, Boeing 737-800 plane that crashed after take-off from Iran's Imam Khomeini airport, on the outskirts of Tehran, Iran January 8, 2020, is seen in this screengrab obtained from a social media video via REUTERS
Iran has asked the U.S. and French authorities for equipment to download information from black boxes on a downed Ukrainian airliner, a request that will add to international frustration at Tehran’s failure to send the recorders abroad for analysis.