Letter Sequence Request |
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Initiation
- Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request
- Acceptance...
Results
Other: ML13317A118, ML13317A130, ML13317A340, ML13317A420, ML13317A423, ML13317A483, ML13317A615, ML13317A681, ML13317A725, ML13317B114, ML13317B116, ML13333B737, ML14133A353
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MONTHYEARML13311A2341979-05-31031 May 1979 Analysis of Capsule F,Reactor Vessel Radiation Surveillance Program Project stage: Other ML13330A0351980-04-24024 April 1980 Tech Spec 3.1.3 for Combined Heatup,Cooldown & Pressure Limitations,Figures 3.1.3a-3.1.3d & Table 3.1.3.1 for Reactor Vessel Toughness Data (Unirradiated) Project stage: Other ML13330A0341980-04-24024 April 1980 Forwards Analysis of Capsule F,Reactor Vessel Radiation Surveillance Program, & Tech Specs 3.1.3 for Combined Heatup,Cooldown & Pressure Limitations.Proposed Change to Tech Specs Will Be Submitted by 801231 Project stage: Request ML13302B0031981-03-0606 March 1981 Notification of 810309 Meeting W/Util in Bethesda,Md to Discuss Facility Emergency Plan Project stage: Request ML13303A4651981-05-14014 May 1981 Forwards Fes.W/O Encl Project stage: Request ML13317A6151981-05-18018 May 1981 Fulfills Commitment Made in Response to NRC 810331 Request Re Vessel Integrity & Responds Further to NRC 810429 Requests & Clarifications Re Reactor Vessel Pressurized Thermal Shock Issue.Discusses Proposed Program Project stage: Other ML14133A3531981-05-22022 May 1981 Discusses Commitment to Develop Program Re Potential Reactor Vessel Integrity Concerns Identified in NRC . Program Will Identify Whether Future Addl Plant Specific Analyses &/Or Remedial Actions Will Be Required Project stage: Other IR 05000206/19810161981-05-22022 May 1981 IE Insp Rept 50-206/81-16 on 810512-15.No Noncompliance Noted.Major Areas Inspected:Welding Activities Associated W/Mods to Auxiliary Feedwater Sys & Repair of Circumferential Welds on Main Steam Piping Project stage: Request ML13317A6591981-06-0202 June 1981 Safety Evaluation Re Environ Qualification of safety-related Electrical Equipment Finding No Outstanding Items That Require Immediate Corrective Action.Deficient Items Replaced.Equipment Qualified for Low Probability Events Project stage: Request ML20030A7701981-07-20020 July 1981 Notification of 810728,29 & 30 Meetings W/B&W,Westinghouse & C-E Owners Groups in Bethesda,Md to Discuss Thermal Shock to Reactor Pressure Vessel Issue Project stage: Meeting ML13330A3941981-08-21021 August 1981 Requests Addl Info Re Pressurized Thermal Shock to Reactor Pressure Vessels,Per Review of PWR Owners Group 810515 & Licensees 810522 Responses to NRC Project stage: Approval IR 05000361/19810171981-08-21021 August 1981 IE Insp Rept 50-361/81-17 on 810715-31.No Noncompliance Noted.Major Areas Inspected:Preoperational Test Program & Procedures,Maint,Plant Tours & Licensee Action on Previously Identified Items Project stage: Request ML20031F1401981-10-0101 October 1981 Summary of 810918 Meeting W/Westinghouse Owners Group Re Pressurized Thermal Shock to Reactor Pressure Vessels. Attendance List & Handouts Encl Project stage: Meeting ML13317A6811981-10-0505 October 1981 Responds to Requesting Addl Action Re Pressurized Thermal Shock to Reactor Pressure vessels.Sixty-day Response Schedule Cannot Be Met.Partial Response Will Be Provided by 811104 Project stage: Other ML13317A7251981-10-23023 October 1981 Discusses Proposed Response to NRC 810821 Request Re Pressurized Thermal Shock to Reactor Pressure Vessels. Requests Available Portions of Response at Time Provided in ,To Avoid Needless Conservatisms Project stage: Other ML13323A2601981-10-31031 October 1981 Operating Instructions for SSH-3/FBA-13 Seismic Scram & Trip Sys Project stage: Request ML13317A7201981-11-0404 November 1981 Forwards Partial Response to NRC 810821 Request for Addl Info Re Pressurized Thermal Shock to Reactor Pressure Vessels Per Project stage: Request ML13309A0791981-11-0404 November 1981 Forwards Responses to Safety Evaluation of Environ Qualification of safety-related Electrical Equipment,Addl Info Not Addressed in Safety Evaluation & Revised Pages to Project stage: Request ML13317A8361982-01-25025 January 1982 Forwards Util 150-day Response to 810821 Request for Addl Info Re Pressurizer Thermal shock.Plant-specific Analyses Indicate That Vessel Integrity Will Be Maintained,Therefore Remedial Actions Not Warranted Project stage: Request ML13310A3761982-01-26026 January 1982 Forwards Amend 28 to Fsar,Reissuing Facility Emergency Plan & Offsite Emergency Response Plans (Filed in PDR Category K), & Amend 10 to Fire Hazards Analysis (Filed in Category F) Project stage: Request ML13333B8091982-03-0808 March 1982 Summary of 820224 Meeting W/Westinghouse Owners Group, Southern CA Edison,Cp&L & Fl Power & Light in Bethesda,Md Re Pressurized Thermal Shock Project stage: Meeting IR 05000361/19820101982-03-15015 March 1982 IE Insp Rept 50-361/82-10 on 820119-0212.No Noncompliance Noted.Major Areas Inspected:Preoperational Test Program,Tmi Mods,Followup on IE Bulletin 80-06,safety Committee Activities & Independent Insp Effort Project stage: Request ML13310A7011982-03-15015 March 1982 Forwards Request for Addl Info Re Pressurized Thermal Shock.Info Should Be Submitted by 820430 Project stage: RAI ML13317B1141982-04-15015 April 1982 Forwards NRC Staff Audit of Robinson 2 Procedures & Training for Pressurized Thermal Shock, Conducted During 820405-07 Site Visit.Control Room Emergency Procedures Weighted Toward Core Cooling Project stage: Other ML13317B1161982-04-15015 April 1982 NRC Staff Audit of Robinson 2 Procedures & Training for Pressurized Thermal Shock Project stage: Other ML13317B1111982-04-22022 April 1982 Forwards NRC Task Force on Pressurized Thermal Shock Audit Rept Re Adequacy of Robinson 2 in-plant Training Programs & Operating Procedures.Similar Audit Will Be Performed at San Onofre 1 in Near Future Project stage: Approval ML13317B1101982-04-27027 April 1982 Advises That Response to NRC 820407 Request for Info Re Emergency Procedures Upgrade Will Be Deferred Until Wk of 820517.Reanalysis of Large Number of Transients Required for plant-specific Guidelines Necessitates Deferral Project stage: Request ML13317A1181982-05-0303 May 1982 Advises That Addl Info Requested 820315 for Pressurized Thermal Shock Will Be Provided by 820515 Project stage: Other ML13317A1241982-05-26026 May 1982 Forwards Partial Response to 820315 Request for Addl Info Re Pressurized Thermal Shock Issue.Other Responses to Be Included in Westinghouse Owners Group Submittals on 820528 & in June 1982 Project stage: Request ML13317A1301982-06-0101 June 1982 Informs That Audit on Pressurized Thermal Shock Will Be Conducted During Wk of 820614,per .Audit Will Review Completion of Revised Operator Training Procedures Project stage: Other ML13317A1951982-06-18018 June 1982 Forwards Corrections to 820526 Response to NRC Request for Addl Info Re Pressurized Thermal Shock.Corrected Pages Indicating 14X14 Core Design & Correct Vol Fractions Encl. Changes Do Not Affect Analysis or Conclusions of Submittal Project stage: Request ML13333B7371982-07-12012 July 1982 Trip Rept of 820603-04 Site Visit to Evaluate Emergency Procedures & Operator Training Re Pressurized Thermal Shock. Procedures Revised Based on Westinghouse Owners Group Guidelines on plan-specific Analyses Project stage: Other ML13317A3401982-09-20020 September 1982 Forwards Rept for 820603-04 Audit of Operator Training & Emergency Procedures Re Pressurized Thermal Shock.Response Addressing Action Being Taken Re Section 5 Recommendations Requested within 45 Days of Ltr Receipt Project stage: Other ML13317A4231982-10-15015 October 1982 To Operator Requalification Re Pressurized Thermal Shock Project stage: Other ML13317A4201982-11-19019 November 1982 Responds to Recommendations Resulting from Audit Concerning Adequacy of Operator Training & Emergency Procedures Re Pressurized Thermal Shock.Operator Requalification Program Revised to Include More Emphasis on Past Events Project stage: Other ML13317A4831983-01-19019 January 1983 Advises That 821119 Response to Audit of Procedures & Training for Pressurized Thermal Shock Acceptable Project stage: Other ML13324A7941986-01-23023 January 1986 Forwards Assessment of Reactor Vessel Beltline Matls,Listing Current Values & Values at OL Expiration Date of RT Pressurized Thermal Shock,Required by 10CFR50.61(b)(1).No Further Action Required Project stage: Other ML13330B1541987-02-0202 February 1987 Safety Evaluation Re Projected Values of Matl Properties for Fracture Toughness Requirements for Protection Against PTS Events.Issue Acceptably Resolved Project stage: Approval ML13330B1521987-02-0202 February 1987 Forwards Safety Evaluation Re Projected Values of Matl Properties for Fracture Toughness Requirements for Protection Against PTS Events Project stage: Approval 1982-01-26
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Text
Southern California Edison Company P. 0. BOX 800 2244 WALNUT GROVE AVENUE ROSEMEAD. CALIFORNIA 91770 K. P. BASKIN TELEPHONE MANAGER OF NUCLEAR ENGINEERING, (213) 572-1401 SAFETY, AND LICENSING January 25, 1982 Director, Office of Nuclear Reactor Regulation JAN2819821 10 Attention:
Mr. Darrell G. Eisenhut, Director Division of Licensing U. S. Nuclear Regulatory Commission Washington, D.C.
20555 Gentlemen:
Subject:
Docket No. 50-206 Pressurized Thermal Shock to Reactor Pressure Vessels San Onofre Nuclear Generating Station Unit 1 Your letter of August 21, 1981 required that we provide you with additional information regarding the San Onofre Unit 1 reactor vessel. A portion of that information was provided to you by our letter dated November 4, 1981.
The remaining information is provided as an enclosure to this letter. In addition, by letter dated December 18, 1981, the NRC requested additional information and amplified requests in the August 21, 1981 letter. Responses to that information have also been included in the enclosure.
The enclosure provides the results of plant specific analyses that demonstrate the reactor vessel integrity will be maintained for the San Onofre Unit 1 vessel beyond its design lifetime. The analyses indicate that a vessel integrity safety concern does not exist through the endof plant life.
Consequently, a plan defining remedial actions and schedules for resolution of this issue, as requested by your August 21, 1981 letter, is not warranted.
However, as indicated in the enclosure, we will institute formal training on this issue as part of the operator requalification training program beginning in February, 1982.
8201290469 820125 PDR ADOCK 05000206 P
PDR
Mr. D.
January 25, 1982 If you have any questions regarding this matter, please let me know.
Subscribed on this day of
, 1982.
?ery tru1yours, By K. P. Baskin Manager of Nuclear Engineering,.
Safety, and Licensing Subscribed and swor to before me this 1 day of
, 1982 Nota Public in and for the County of L s Angeles, State of California En c l o s u re
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OFFICIAL SEAL AGNES CRABTREE NOTARY PUBLIC - CALIFORNIA PRINCIPAL OFFICE IN LOS ANGELES COUNTY My Commission Exp. Aug.27,1982 W di3 cw it 92 9 a oIwIIn