CBRN event in South Africa on Thu 4th March 1999

A routine consignment of 7 Tbq of Mo-99 in Type B(U) packaging, produced by the South African Atomic Energy Corporation, was delivered to Johannesburg International Airport on 2 March 1999, for transportation to Israel. The package could not be found by the carrier later on the same day. The carrier has instituted a worldwide search, and the local police service has been informed.
Justification of the rating:
Section 3.3 of the addendum of the INES User's Manual, which replaces Section IV-5.1.2, indicates that Level 2 rating is appropriate for permanent loss of a radioactive source of size such that there is potential for a person to receive a dose which would result in prompt adverse health effects.