Unit startup with degraded high pressure safety injection system.

Main steam isolation valve guide rail failure at Waterford Unit 3.
Published: (1988)

Thermally induced pressure locking of a high pressure coolant injection valve.
Published: (1996)

Suceptibility of low-pressure coolant injection and core spray injection valves to pressure locking.
Published: (1995)

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

Inadequate inservice testing of main steam isolation valves.
Published: (1985)

Degraded ability to isolate the reactor coolant system from low-pressure coolant systems in BWRS.
Published: (1986)

Changes In pressurizer safety valve setpoints before installation.
Published: (1991)

LWR primary coolant system pressure isolation valves.
Published: (1980)

Main steam isolation valve closure logic.
Published: (1985)

Failure of a boiling water reactor target rock main steam safety/relief valve.
Published: (2003)

Boiling water reactor safety/relief valve failures.
Published: (1983)

Pressurizer safety valve reliability.
Published: (1986)

Failures to identify containment leakage due to inadequate local testing of BWR vacuum relief system valves.
Published: (1986)

Excessive nitrogen supply pressure actuates safety-relief valve operation to cause reactor depressurization.
Published: (1980)

Degradation of scram solenoid pilot valve pressure and exhaust diaphragms.
Published: (1994)

Reversed differential pressure instrument sensing lines.
Published: (1984)

Failure of three check valves on high pressure injection lines to pass flow.
Published: (1982)

Potential error in high steamline flow setpoint.
Published: (1990)

Failure of safety injection valves to operate against differential pressure.
Published: (1981)

Vibration-induced degradation and failure of safety-related valves.
Published: (2006)

Degradation or loss of charging systems at PWR nuclear power plants using swing-pump designs.
Published: (1986)

Rosemount differential pressure transmitter zero point shift.
Published: (1985)

Main steam safety valve setpoint variation as a result of thermal effects.
Published: (1996)

Safety evaluation of Westinghouse topical reports dealing with elimination of postulated pipe breaks in PWR primary main loops.
Published: (1984)

Malfunction of a pressurized code safety valve.
Published: (1993)

Availability of NUREG-1169, "Technical findings related to Generic Issue C-8; boiling water reactor main steam isolation valve leakage and leakage treatment methods".
Published: (1986)

Testing and operations-induced degradation of 3-stage Target Rock safety/relief valves.
Published: (2018)

Potential problems with Crosby safety relief valves used on diesel generator air start receiver tanks.
Published: (1990)

RELAP5/MOD3 assessment for calculation of safety and relief valve discharge piping hydrodynamic loads /
by: Stubbe, E. J. (Elie J.), et al.
Published: (1994)

Cracking of valves in the condensate return lines of a BWR emergency condensation system.
Published: (1992)

Reduction of reactor coolant inventory because of misalignment of RHR valves.
Published: (1986)

Inadvertent containment spray due to personnel error.
Published: (1981)

Failure to close service water cross-connect isolation valves.
Published: (1989)

Breach of containment integrity.
Published: (1979)

Primary containment isolation valve discrepancies.
Published: (1983)

Containment purging and venting during normal operation--guidelines for valve operability.
Published: (1979)