As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING THE UNPACKING PROCEDURE OF THE AILERON BALANCE WEIGHT WHICH IS MADE OF DEPLETED URANIUM MATERIAL, IN ORDER TO BE INSTALLED IN THE AIRCRAFT DURING C-CHECK, IT STARTED TO BURN. THIS PART WAS PROVIDED BY THE AIRCRAFT OPERATOR IN OVERHAULED CONDITION.