New clues have emerged from the wreckage of Metrojet Flight 9268, prompting more speculation about whether there was a midair explosion and whether repair work from a previous accident may have factored into the plane's demise.
The aircraft, headed from the Egyptian resort of Sharm el-Sheikh to St. Petersburg, Russia, crashed in the Sinai Peninsula on Saturday, killing all 224 people on board.
The plane's tail was found about 5 kilometers (3 miles) from the rest of the plane wreckage, the Russian state broadcaster Russia 24 reported.
The distance from the tail to the rest of the debris could be telling -- especially because the tail was previously damaged, CNN aviation analyst Mary Schiavo said.
