Letter Sequence Other |
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Results
Other: A01061, Forwards Info Re Design Basis Transient & Accident Conditions Providing Basis for Auxiliary Feedwater Sys Flow Requirements,In Response to NRC 791022 Request.Based on Analyses,Auxiliary Feedwater Sys Complies W/Section 1.4, B10116, Advises of Discrepancy Between Delays Cited in Util 800520 Analysis Re Use of Two Electrically Driven Auxiliary Feedwater Pumps in Automatic Initiation Scheme.Multiple Conservatisms Justify Validity of Analysis, ML19210E670, ML19211A900, ML19211C160, ML19253C587, ML19257C081, ML19257C288, ML19257D549, ML19260B517, ML19305A972, ML19305D956, ML19309B223, ML19322E381, ML19338C766, ML20125D098
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MONTHYEARML19256E2921979-10-22022 October 1979
Fowards Generic Request for Addl Info & Requirements for Auxiliary Feedwater Sys
Project stage: RAI
ML19210E6701979-11-28028 November 1979
Responds to NRC 791018,22 & 1121 Requests Re short- & long- Term Recommendations for Auxiliary Feedwater Sys Requirements
Project stage: Other
ML19253C5871979-11-30030 November 1979
Forwards Calculations Re Automatic Initiation of Auxiliary Feedwater & Supporting Statement That Longer Time Is Available for Haddem Neck Steam Generator Dryout than for Millstone-2
Project stage: Other
ML19260B5111979-12-0606 December 1979
Forwards Proposed Automatic Initiation Scheme for Auxiliary Feedwater Sys, in Response to NRC Request for Specific Design Details & Demonstration of Compliance W/Hr Denton
Project stage: Request
ML19211A9001979-12-17017 December 1979
Forwards Design Drawings Re Automatic Initiation of Auxiliary Feedwater,In Response to NRC Request.W/O Encl. List of Drawings Encl
Project stage: Other
ML19211C1601979-12-21021 December 1979
Requests Tech Specs for Auxiliary Feedwater Sys Mods & Revision of Normal & Emergency Operating Procedures. Sample Tech Spec Pages Encl
Project stage: Other
ML20125D0981979-12-27027 December 1979
Responds to to Hendrie Re Concerns About Requirement for Automatically Initiated Auxiliary Feedwater Sys at Facilities.Requests Analysis of Effect of Failure to Isolate Feedwater Flow to Affected Steam Generator
Project stage: Other
ML19260B5171979-12-31031 December 1979
Proposed Automatic Initiation Scheme for Auxiliary Feedwater Sys
Project stage: Other
ML19257C0811980-01-0303 January 1980
Forwards Summary of Bulletins & Orders Task Force 791218-19 Audit of Small Break LOCA Emergency Procedure & Operator Retraining.List of Exit Interview Attendees & List of Instrument Power Supplies Encl
Project stage: Other
ML19257C2881980-01-17017 January 1980
Submits Results of Review of Operating Records of 48-h Endurance Test on Auxiliary Feedwater Pumps,In Response to short-term Recommendations of NRC 791011 & 22 Ltrs.Intent of Recommendation Fulfilled
Project stage: Other
ML19257D5491980-01-25025 January 1980
Forwards Info Re Automatic Initiation of Auxiliary Feedwater.No Conclusion Reached Re Acceptability of Implementation
Project stage: Other
ML19273D1251980-02-14014 February 1980
Forwards Licensee Accident Analysis Re Main Steam Line Break Inside Containment.Requests Safety Evaluation.Licensee Plans to Submit Auxiliary Feedwater Sys auto-initiation Sys Which Delays Auxiliary Feedwater Flow for Three Minutes
Project stage: Approval
ML19322E3811980-03-0505 March 1980
Responds to IE Bulletin 80-04 Re Analysis of PWR Main Steam Line Break W/Continued Feedwater Addition.Details of Control Grade Automatic Initiation of Auxiliary Feedwater Scheme Are Being Finalized.Necessity of Installation Is Questionable
Project stage: Other
ML19305A9721980-03-10010 March 1980
Advises That Util Response to NRC 791022 Request Re Auxiliary Feedwater Sys Flow Design Info Is Scheduled for Submittal on or About 800616
Project stage: Other
ML19309B2231980-03-31031 March 1980
Proposed Revisions to Tech Specs 3.7.1.2 & 4.7.1.2,adding Surveillance Requirement for Auxiliary Feedwater Flow Test After Cold Shutdown Exceeding One Month
Project stage: Other
ML19309B1741980-03-31031 March 1980
Application to Amend License DPR-65,in Response to Concerns Expressed in NRC .Revisions Add Surveillance Requirement for Auxiliary Feedwater Flow Test After Cold Shutdown Exceeding One Month.Affidavit Encl
Project stage: Request
ML19305D9561980-04-11011 April 1980
Discusses Problems W/Implementation of Lessons Learned Task Force Recommendation Re Automatic Initiation of Auxiliary Feedwaters Sys.Requests NRC Concurrence W/Plan for Implementing Requirement During 1980 Refueling Outage
Project stage: Other
ML19275E7271980-05-0909 May 1980
Suppl to Safety Evaluation Supporting Licensee 800125 Response.Peak Containment Pressure Will Remain Below Design Pressure Even W/Addition of Auxiliary Feedwater at run-out Flow
Project stage: Approval
ML19275E7241980-05-0909 May 1980
Forwards Supplemental Safety Evaluation Supporting Licensee 800125 Response.Peak Containment Pressure Will Remain Below Design Pressure Even W/Addition of Auxiliary Feedwater at Run Out Flow
Project stage: Approval
A00803, Application to Amend License DPR-65,submitted as Proposed Revision to Tech Specs,In Response to NRC . Summarizes Status of Implementation of Automatic Initiation of Auxiliary Feedwater.One Pump Sufficient1980-05-20020 May 1980
Application to Amend License DPR-65,submitted as Proposed Revision to Tech Specs,In Response to NRC . Summarizes Status of Implementation of Automatic Initiation of Auxiliary Feedwater.One Pump Sufficient
Project stage: Request
ML19323F2551980-05-20020 May 1980
Tech Spec Change Request for Tables 3.3-3,3.3-4,3.3-5 & 4.3-2,for Engineered Safety Features Actuation Sys Instrumentation,Trip Values,Response Times & Surveillance Requirements
Project stage: Request
A01061, Forwards Info Re Design Basis Transient & Accident Conditions Providing Basis for Auxiliary Feedwater Sys Flow Requirements,In Response to NRC 791022 Request.Based on Analyses,Auxiliary Feedwater Sys Complies W/Section 1.41980-06-16016 June 1980
Forwards Info Re Design Basis Transient & Accident Conditions Providing Basis for Auxiliary Feedwater Sys Flow Requirements,In Response to NRC 791022 Request.Based on Analyses,Auxiliary Feedwater Sys Complies W/Section 1.4
Project stage: Other
B10061, Application for Amend to License DPR-65,incorporating Proposed Revisions to Tech Specs Required to Support Plant Operation During Cycle 4 Reload1980-08-29029 August 1980
Application for Amend to License DPR-65,incorporating Proposed Revisions to Tech Specs Required to Support Plant Operation During Cycle 4 Reload
Project stage: Request
ML19338C7661980-08-29029 August 1980
Proposed Revisions to Tech Specs Required to Support Plant Operation During Cycle 4 Reload
Project stage: Other
ML19338D1421980-09-0202 September 1980
Requests Class III Fee for Review of 800520 Application for Proposed Tech Spec Changes Re Automatic Initiation of Auxiliary Feedwater Sys.Application Involves Consideration of Single Safety Issue
Project stage: Approval
B10116, Advises of Discrepancy Between Delays Cited in Util 800520 Analysis Re Use of Two Electrically Driven Auxiliary Feedwater Pumps in Automatic Initiation Scheme.Multiple Conservatisms Justify Validity of Analysis1980-10-31031 October 1980
Advises of Discrepancy Between Delays Cited in Util 800520 Analysis Re Use of Two Electrically Driven Auxiliary Feedwater Pumps in Automatic Initiation Scheme.Multiple Conservatisms Justify Validity of Analysis
Project stage: Other
B10127, Advises of Error in Sgn 111 Code Used for Feedline Break Analysis Submitted 800616 in Response to NRC 791022 Request for Addl Info Re Auxiliary Feedwater Sys Flow Requirements. Forwards Reanalysis Using Sgn 111 Code1980-11-20020 November 1980
Advises of Error in Sgn 111 Code Used for Feedline Break Analysis Submitted 800616 in Response to NRC 791022 Request for Addl Info Re Auxiliary Feedwater Sys Flow Requirements. Forwards Reanalysis Using Sgn 111 Code
Project stage: Request
A01488, Responds to NRC Requesting Auxiliary Feedwater Pump Endurance Test & Compliance W/Requirement to Automate Steam Driven Auxiliary Feedwater Pump.Test Confirmed Pump Vibrations Did Not Exceed Allowable Limits1981-02-19019 February 1981
Responds to NRC Requesting Auxiliary Feedwater Pump Endurance Test & Compliance W/Requirement to Automate Steam Driven Auxiliary Feedwater Pump.Test Confirmed Pump Vibrations Did Not Exceed Allowable Limits
Project stage: Other
ML19347D4851981-03-19019 March 1981
Discusses Review of Util Providing Info Re 48-h Auxiliary Feedwater Pump Endurance Test & Compliance W/Nrc Requirement to Automate Start of steam-driven Pump.Item Re Pump Test Resolved
Project stage: Approval
ML20238E2381982-04-0505 April 1982
PWR Main Steam Line Break W/Continued Feedwater Addl Northwest Nuclear Energy Co Millstone Unit 2. Request for Addl Info
Project stage: Request
ML20244B9101982-05-20020 May 1982
Forwards Request for Addl Info Necessary to Complete NRC Review of Licensee 820125 & 0305 Responses to IE Bulletin 80-04, Analysis of PWR Main Steam Line Break W/Continued Feedwater Addition. Response Due in 45 Days.W/O Encl
Project stage: RAI
ML20053C3161982-05-20020 May 1982
Forwards Request for Addl Info Necessary to Complete NRC Review of Licensee 820125 & 0305 Responses to IE Bulletin 80-04, Analysis of PWR Main Steam Line Break W/Continued Feedwater Addition. Response Due in 45 Days.W/O Encl
Project stage: RAI
A02509, Responds to 820520 Request for Addl Info Re IE Bulletin 80-04, Main Steam Line Break W/Continued Feedwater Addition. No Damage Would Be Sustained If Pumps Ran for 30 Minutes Under Calculated Conditions1982-07-0606 July 1982
Responds to 820520 Request for Addl Info Re IE Bulletin 80-04, Main Steam Line Break W/Continued Feedwater Addition. No Damage Would Be Sustained If Pumps Ran for 30 Minutes Under Calculated Conditions
Project stage: Request
ML20062E2771982-07-22022 July 1982
Forwards Safety Evaluation of Util Analysis of Main Steam Line Break W/Continued Feedwater Addition,Submitted Per IE Bulletin 80-04.Analysis Acceptable
Project stage: Approval
ML20027D2541982-10-0707 October 1982
Forwards Safety Evaluation of Util 800125 & 820706 Responses to IE Bulletin 80-04 Re Resolution of Main Steam Line Break W/Continued Feedwater Addition.Util Analysis Acceptable. Issue Closed
Project stage: Approval
1980-03-10
[Table View] |
Text
NORTHEA!TT UTILTFIES 1
535f5EEE.'.
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- :='a'r!"X T C' March 5, 1980 Docket Nos. 50-213 50-336 Boyce H. Grier, Director Region I Office of Inspection and Enforcement U. S. Nuclear Regulatory Cc= mission 631 Park Avenue King of Prussia, PA 19h06
References:
(1)
B. H. Grier letter to W. G. Counsil dated February 8,1980, transmitting I&E Bulletin No. 80-04.
(2)
W. G. Counsil letter to D. L. Zie= ann dated January 30, 1980.
(3)
W. G. Counsil letter to R. Reid dated January 25, 1980.
(4 )
W. G. Counsil letter to J. Hendrie dated November 30, 1979 Gentlemen:
Haddam Neck Plant Millstone Nuclear Power Station, Unit No. 2 Analysis of a PWR Ma. Steam Line Break with Continued Feenvater Addition In Reference (1), Connecticut Yankee Atomic Power Company (CYAPCO) aad Northeast Nuclear Energy Company (UNECO) were requested to respond to several Staff concerns relating to potential non-conservatisms in the analysis of a postulated main steam line break. The expressed Staff concerns were addressed in References (2) and (3) for CYAPC0 and NNECO, respectively, and were available to the Staff prior to the issuance of Reference (1). As indicated in References (2) and (3),
efforts are in progress to finalise the details of the control grade automatic initiation of auxiliary feedvater scheme, and vill be the subject of future correspondence to the Office of Nuclear Reactor Regulation.
The necessity of this installation remains questionable in the judgment of CYAPCO and NNECO for reasons su==arised in Reference (h).
No further action is planned in direct response to Reference (1).
Very truly yours, CONNECTICUT YANKEE ATOMIC POWER COMPANY NORTHEAST NUCLEAR INERGY COMPA'iY p
y 0'%r (W./n
))on c
W. G. Counsil 3
Vice President j/f0 j
8 0032 70 3b
