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Due to a lapse in appropriations, the NRC has ceased normal operations. However, excepted and exempted activities necessary to maintain critical health and safety functions—as well as essential progress on designated critical activities, including those specified in Executive Order 14300—will continue, consistent with the OMB-Approved NRC Lapse Plan.

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References

This page lists, in chronological order, general references for Reactor Pressure Vessel Upper Head Issues.

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Date

Description
02/20/2004 First Revised NRC Order EA-03-009
07/29/2003 The NRC issued Regulatory Issue Summary 2003-013: "NRC Review of Responses to Bulletin 2002-01, 'Reactor Pressure Vessel Head Degradation and Reactor Coolant Pressure Boundary Integrity'"
02/11/2003 NRC Order EA-03-009
01-16-2003 Information Notice 2003-02: Recent Experience with Reactor Coolant System Leakage and Boric Acid Corrosion
08-09-2002 Bulletin 2002-02: Reactor Pressure Vessel Head and Vessel Head Penetration Nozzle Inspection Programs
04-04-2002 Information Notice 2002-13: Possible Indicators of Ongoing Reactor Pressure Vessel Head Degradation
03-18-2002 Bulletin 2002-01: Reactor Pressure Vessel Head Degradation and Reactor Coolant Pressure Boundary Integrity
03-12-2002 Information Notice 2002-11: Recent Experience with Degradation of Reactor Pressure Vessel Head
12-11-2001 Staff Preliminary Technical Assessment of Reactor Pressure Vessel Head Penetration Nozzle Cracking
11-06-2001 Preliminary Staff Assessment of Reactor Pressure Vessel Head Penetration Nozzle Cracking
08-03-2001 Bulletin 2001-01: Circumferential Cracking of Reactor Pressure Vessel Head Penetration Nozzles, August 3, 2001
04-30-2001 Information Notice 2001-005: Through-Wall Circumferential Cracking of Reactor Pressure Vessel Head Control Rod Drive Mechanism Penetration Nozzles at Oconee Nuclear Station, Unit 3
10-08-1997 Generic Letter (GL) 91-18, Rev. 1: Information to Licensees Regarding NRC Inspection Manual Section on Resolution of Degraded and Nonconforming Conditions
04-01-1997 Generic Letter 97-001: Degradation of Control Rod Drive Mechanism Nozzle and Other Vessel Closure Head Penetrations
02-14-1996 Information Notice 96-011: Ingress of Demineralizer Resins Increases Potential for Stress Corrosion Cracking of Control Rod Drive Mechanism Penetrations
01-05-1995 Information Notice 86-108, Supplement 3: Degradation of Reactor Coolant System Pressure Boundary Resulting from Boric Acid Corrosion
08-30-1994 Information Notice 94-063: Boric Acid Corrosion of Charging Pump Casing Caused by Cladding Cracks
02-23-1990 Information Notice 90-010: Primary Water Stress Corrosion Cracking of INCONEL 600
03-17-1988 Generic Letter 88-005: Boric Acid Corrosion of Carbon Steel Reactor Pressure Boundary Components in PWR Plants
11-19-1987 Information Notice 86-108, Supplement 2: Degradation of Reactor Coolant System Pressure Boundary Resulting from Boric Acid Corrosion
04-20-1987 Information Notice 86-108, Supplement 1: Degradation of Reactor Coolant System Pressure Boundary Resulting from Boric Acid Corrosion
06-02-1982 Bulletin 82-002: Degradation of Threaded Fasteners in the Reactor Coolant Pressure Boundary of PWR Plants
03-12-1982 Information Notice 82-006: Failure of Steam Generator Primary Side Manway Closure Studs
06-11-1980 Information Notice 80-027: Degradation of Reactor Coolant Pump Studs

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Page Last Reviewed/Updated Monday, May 12, 2025

Page Last Reviewed/Updated Monday, May 12, 2025