Reversed differential pressure instrument sensing lines.

Undetected modification of flow characteristics in the high pressure safety Injection system.
Published: (1993)

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

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

Locking devices inadequately installed on main steam isolation valves.
Published: (1981)

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

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

Instrument failure causes opening of PORV and block valve.
Published: (1980)

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

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

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

Potential failure of long-term emergency nitrogen supply for the automatic depressurization system valves.
Published: (1994)

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

Periodic verification of leak tight integrity of pressure isolation valves.
Published: (1987)

Air actuator and supply air regulator problems in Copes-Vulcan pressurizer power-operated reliel valves.
Published: (1995)

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

Problems with Copes-Vulcan pressurized power-operated relief valves.
Published: (1994)

Pressure locking of motor-operated flexible wedge gate valves.
Published: (1992)

Valve stem corrosion failures.
Published: (1985)

Potential for gas binding of high-pressure safety injection pumps during a loss-of-coolant accident.
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)

Fabrication flaw density and distribution in repairs to reactor pressure vessel and piping welds /
by: Schuster, G. J.
Published: (2008)

Cladding behavior during postulated loss-of-coolant accidents /
by: Billone, M. C.
Published: (2016)

Guidelines for inservice testing at nuclear power plants : inservice testing of pumps and valves and inservice examination and testing of dynamic restraints (snubbers) at nuclear power plants, final report /
by: Bedi, Gurjendra S.
Published: (2013)

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

Setpoint testing of pressurizer safety valves with filled loop seals using hydraulic assist devices.
Published: (1988)

RHR valve misalignment causes degradation of ECCS in PWRS.
Published: (1987)

Loss of high head safety injection.
Published: (1992)

Results of validation testing of motor-operated valve diagnosis equipment.
Published: (1992)

Inaccuracy of safety valve set pressure determinations using assist devices.
Published: (1994)

Nozzle ring settings on low pressure water-relief valves.
Published: (1992)

Failures of Hiller actuators upon gradual loss of air pressure.
Published: (1982)

Failures of air-operated valves affecting safety-related systems.
Published: (1988)

Standby liquid control system squib valves failure to fire.
Published: (1986)

Target Rock two-stage SRV setpoint drift.
Published: (1986)

Failure of a main steam safety valve to reseat caused by an improperly installed release nut.
Published: (1996)