The Iranian official leading the investigation into the Ukrainian jetliner that was accidentally shot down by the Revolutionary Guard appeared to backtrack Sunday on plans to send the flight recorders abroad for analysis, a day after saying they would be sent to Kyiv. The same official was quoted by the semi-official Tasnim news agency on Saturday as saying the recorders would be sent to Ukraine, where French, American and Canadian experts would help analyze them. Iranian officials previously said the black boxes were damaged but usable.