Unrecognized reactivity addition during plant shutdown.

Inadequate shutdown margins.
Published: (1984)

Degradation of shutdown cooling system performance.
Published: (1993)

Light water reactor fuel response during reactivity initiated accident experiments
Published: (1978)

Inaccurate reactor water level indication and inadvertent draindown during shutdown.
Published: (1996)

Turbine overspeed and reactor cooldown during shutdown evaluation.
Published: (1994)

Undetected accumulation of gas in reactor coolant system and inaccurate reactor water level indication during shutdown.
Published: (1996)

Partial bypass of shutdown cooling flow from the reactor vessel.
Published: (1996)

Inadvertent control rod withdrawal event while shutdown.
Published: (2010)

Operator actions affecting reactivity.
Published: (1996)

Administration of operating tests prior to initial criticality (10 CFR SS55.25).
Published: (1984)

Potential for loss of shutdown cooling while at low reactor coolant levels.
Published: (1990)

Failure of remote shutdown system instrumentation because of incorrectly installed components.
Published: (1991)

Recent operating experience on loss of reactor coolant inventory while In a shutdown condition.
Published: (1990)

Safe shutdown potentially challenged by unanalyzed internal flooding events and inadequate design.
Published: (2005)

Experiment data report for test RIA 1-1 (Reactivity Initiated Accident test series)
by: Buckland, Russell J.
Published: (1979)

Level instrumentation inaccuracies observed during normal plant depressurization.
Published: (1993)

Outage planning and scheduling--impacts on risk.
Published: (2005)

Loss of shutdown cooling during disassembly of high pressure safety injection system check valve.
Published: (1991)

Leaking shutdown cooling isolation valves at Cooper Nuclear Station.
Published: (1994)

Shutdown order issued because licensed operators asleep while on duty.
Published: (1987)

Reactivity accidents : a reassessment of the design-basis events
by: Diamond, David J.
Published: (1990)

Risk impact study regarding maintenance during low-power operation and shutdown.
Published: (1995)

Careful planning significantly reduces the potential adverse impacts of loss of offsite power events during shutdown.
Published: (1991)

Experimental study of narrow pulse effects on the behavior of high burnup fuel rods with Zr-1%Nb cladding and UO₂ fuel (VVER type) under reactivity-initiated accident conditions
by: Yegorova, L. A. (Larisa Alexandrovna)
Published: (2006)

Effects of crud buildup and boron deposition on power distribution and shutdown margin.
Published: (1997)

Subcritical reactivity monitoring : neutron yields from spontaneous (.
by: Ombrellaro, P. A.
Published: (1978)

Credit for control rods without scram capability in the calculation of the shutdown margin.
Published: (1989)

Reactor trip followed by unexpected events.
Published: (1994)

Operational issues identified in boiling water reactor trip and transient.
Published: (2000)

Failure to ensure that post-fire shutdown procedures can be performed.
Published: (2010)

Potential for loss of remote shutdown capability during a control room fire.
Published: (1992)

Post-refueling outage reactor pressure vessel leak testing before core criticality.
Published: (1998)

Actuation of ECCS in the recirculation mode while in hot shutdown.
Published: (1980)

Observations from recent shutdown risk and outage management pilot team inspections.
Published: (1993)

Potential loss of safe shutdown equipment due to premature silicon controlled rectifier failure.
Published: (1988)

Problems associated with post-fire safe-shutdown circuit analyses.
Published: (1999)