The fears that the airliner was carrying radioactive isotopes were confirmed on 8 December 1966 when it was stated that it carried two steel-lead containers with iodine-131 for medical purposes.
Obavy, že lietadlo prepravovalo rádioaktívne látky, sa potvrdili 8. decembra 1966, kedy bolo konštatované, že na palube bol jód 131 pre lekárske účely.