INES-event
INES 1

FUEL BUNDLE LATTICE SPACING FAILURES

The Loviisa fuel bundles have ten spacing latices. The on-site examinations of spent fuel have revealed deformation and relocation of the uppermost lattice. The extent and the consequences of this failure mode are being evaluated.
BASIS FOR RATING: Safety function availability: full. Real initiator: fuel bundle spacinglattice failure. Initiator frequency: Possible. Table A2 gives 1.
DIFFICULTIES IN RATING:

Location: LOVIISA-1
Event date: Mon, 01-01-1990
Nuclear event report
Legenda & explanation