Issue 159: Qualification of Safety-Related Pumps While Running on Minimum Flow
DESCRIPTION
Historical Background
This issue was identified[1]by NRR and addressed concerns involving centrifugal pumps operat
Issue 158: Performance of Power-Operated Valves Under Design Basis Conditions
DESCRIPTION
Historical Background
This issue was identified[1]by NRR after reactor operating experience and research results o
Issue 157: Containment Performance
The results of ongoing staff-sponsored research which culminated in the assessment of risk at five U.S. nuclear
Issue 156: Systematic Evaluation Program: Settlement of Foundations and Buried Equipment
DESCRIPTION
In 1977, the NRC initiated the Systematic Evaluation Program (SEP) to review the designs of 51 older, operating nuclear power plants. The SEP was divided into 2 phases.
Issue 155: More Realistic Source Term Assumptions
DESCRIPTION
The TMI-2 Safety Advisory Board was established to provide the licensee, General Public Utilities Nuclear Corporation, with a qualified, independent appraisal of the cleanup of TMI-2
Issue 154: Adequacy of Emergency and Essential Lighting
DESCRIPTION
Historical Background
This issue arose as the result of an event at the Palo Verde Nuclear Generating Station (PVNGS) Unit 3 in which
Issue 153: Loss of Essential Service Water in LWRs
DESCRIPTION
Historical Background
The reliability of essential service water (ESW) systems and related problems have been an ongoing staff concern which has been documented in NUREG/CR-2
Issue 152: Design Basis for Valves That Might Be Subjected to Significant Blowdown Loads
DESCRIPTION
Historical Background
This issue was identified[1]by DSIR/RES following ACRS concerns raised during the review of
Issue 151: Reliability of Anticipated Transient Without SCRAM Recirculation Pump Trip in BWRs
DESCRIPTION
Historical Background
This issue was identified in a DSIR/RES memorandum[1]which addressed the concern for the rel
Issue 150: Overpressurization of Containment Penetrations
DESCRIPTION
Historical Background
This issue was identified[1]by DSIR/RES and addressed the concern for overpressurization of