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MONTHYEARML20069K3761983-04-22022 April 1983
Provides Current Status of Efforts to Resolve Upper Core Barrel Bolt Integrity Problems.B&W Owners Steering Committee 830426 Meeting in Denver,Co Will Explore Plans for Generic &/Or plant-specific Actions
Project stage: Meeting
05000302/LER-1983-018-01, /01T-0:on 830413,preliminary Repts Received from B&W Indicating That 51 of 120 Upper Core Barrel Bolts Ultrasonically Tested May Be Defective.Cause Unknown. Investigation Underway.Supplemental Rept Will Be Written1983-04-27027 April 1983
/01T-0:on 830413,preliminary Repts Received from B&W Indicating That 51 of 120 Upper Core Barrel Bolts Ultrasonically Tested May Be Defective.Cause Unknown. Investigation Underway.Supplemental Rept Will Be Written
Project stage: Supplement
ML15238A8111983-05-20020 May 1983
Forwards BAW-1784, B&W Owners Group Bolting Task Force Summary Rept of Nrc/B&W Owners Group 830506 Meeting on Reactor Vessel Internals Bolting
Project stage: Meeting
ML20071G7461983-05-20020 May 1983
Updates Suatus of Reactor Internals Bolting Problem.All Upper Core Barrel Bolts Will Be Replaced & Backup Ultrasonic Exam on Surveillance Specimen Holder Tube Bolts Performed by 830520.Basis for Decisions & Plans Discussed
Project stage: Other
ML20071N9261983-05-31031 May 1983
B&W Owners Group Bolting Task Force Summary Rept of Nrc/B&W Owners Group 830506 Meeting on Reactor Vessel Internals Bolting
Project stage: Meeting
ML20079R7711983-06-20020 June 1983
Updates Status of BAW-1784 Re Internals Bolting Repair Activities.B&W Stress Analysis Plus Margins Afforded by Util Repair Plans,Assure Safety of Reactor Internals for Return to Full Power
Project stage: Other
ML19277C6071983-06-24024 June 1983
Summary of 830506 Meeting W/B&W Owners Group in Bethesda,Md Re Issues Raised by Reactor Vessel Internal Bolt Failures at Rancho Seco & Crystal River
Project stage: Meeting
05000302/LER-1983-018, Updated LER 83-018/01T-1:on 830413,preliminary Repts Received from B&W Indicated 51 of 120 Upper Core Barrel Bolts W/Ultrasonic Flaw Indications.Caused by Intergranular Stress Corrosion Cracking.Bolts Replaced1983-07-12012 July 1983
Updated LER 83-018/01T-1:on 830413,preliminary Repts Received from B&W Indicated 51 of 120 Upper Core Barrel Bolts W/Ultrasonic Flaw Indications.Caused by Intergranular Stress Corrosion Cracking.Bolts Replaced
Project stage: Other
1983-05-31
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Babcock & Wilcox Nuclear Power Generation Division a McDermott company 3315 Old Forest Road P.O. Box 1260 Lynchburg, Virginia 24505-1260 (804) 385-2000 May 20, 1983 Mr. Sydney Miner Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission 7920 Norfolk Avenue Bethesda, MD 20814
Dear Mr. Miner:
As promised in our May 6, 1983, meeting with the NRC staff the attached represents a formal summary of the information presented. This report is being submitted by B&W on behalf of the B&W Owners Group.
The report contains a summary of the information provided in the May 6, 1983, meeting presentations and answers to questions or requests for additional information made by NRC personnel at that meeting. Appendix A contains the slides used in those presentations. Appendices B, C and D provide answers to several specific NRC questions from the meeting. The answers to the remaining NRC questions are included in appropriate sections of the text of the report.
The affected utilities, the B&WOG Bolting Task Force and/or B&W will keep you advised when new significant information is available.
If you have any questions on this submittal, please call me (804-385-2817) or T. L. Baldwin of my staff (804-385-3142).
Very truly yours, J. H. Tay or Manager, Licensing JHT/lec cc:
G. F. Lanik -
(NRC)
G. C. Lainas -
(NRC)
P.
Kadambi -
(NRC)
C. W. Hendrix, Jr. - Duke Power Co., Chairman, Bolting Task Force B&WOG Bolting Task Force Members (8)
R. B. Borsum (B&W Bethesda Office) 6306070260 830531 PDR ADOCK 05000269 P
PDR
