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	Issue date	From	Title	Project stage
AECM-83-0146, Forwards Response to Five of Six Items Contained in Re Util Work Addressing Containment Issues.Evaluation of Condensation Oscillation Loads Produced by Discharges from RHR HX Relief Valve Will Be Completed by Late Apr	23 March 1983	Dale L MISSISSIPPI POWER & LIGHT CO.	Forwards Response to Five of Six Items Contained in Re Util Work Addressing Containment Issues.Evaluation of Condensation Oscillation Loads Produced by Discharges from RHR HX Relief Valve Will Be Completed by Late Apr	Other
ML20137Q230	31 July 1983	GENERAL ELECTRIC CO. Srivastava H Hwang H Atwell J	Containment Issue Isolation Transient	Other
ML20097F052	31 March 1984	BECHTEL GROUP INC. Ashley G Leong T	Approach to Chugging,Assessment of RHR Steam Discharge Condensation Oscillation in Mark III Containments	Other
AECM-84-0443, Forwards Approach to Chugging,Assessment of RHR Steam Discharge Condensation Oscillation in Mark III Containments, Per 830323 Commitment.Ae Evaluation Will Be Completed by mid-Dec 1984	7 September 1984	Dale L MISSISSIPPI POWER & LIGHT CO.	Forwards Approach to Chugging,Assessment of RHR Steam Discharge Condensation Oscillation in Mark III Containments, Per 830323 Commitment.Ae Evaluation Will Be Completed by mid-Dec 1984	Other
AECM-85-0018, Forwards Evaluation of RHR Relief Valve Condensation Oscillation Loads on Structures & Piping.Info Demonstrates That All Loads Which Could Be Produced by Actuation of RHR HX Relief Valves Acceptable	24 January 1985	Dale L MISSISSIPPI POWER & LIGHT CO.	Forwards Evaluation of RHR Relief Valve Condensation Oscillation Loads on Structures & Piping.Info Demonstrates That All Loads Which Could Be Produced by Actuation of RHR HX Relief Valves Acceptable	Other
AECM-85-0046, Provides Basis That Weir Wall Overflow Following Postulated Inadvertent Upper Containment Pool Dump Does Not Involve Significant Safety Problem.Evaluation Plans & Justification Provided	25 February 1985	Dale L MISSISSIPPI POWER & LIGHT CO.	Provides Basis That Weir Wall Overflow Following Postulated Inadvertent Upper Containment Pool Dump Does Not Involve Significant Safety Problem.Evaluation Plans & Justification Provided	Other
ML20126J267	11 June 1985	Adensam E Office of Nuclear Reactor Regulation	Forwards Request for Addl Info Re Steam Condensing Mode of RHR Sys.Info Requested by 850715	RAI
AECM-85-0287, Responds to NRC 850611 Request for Addl Info Re Steam Condensing Mode.Listed Methods for Predicting Chugging Will Be Evaluated.Evaluation Scheduled for Completion by 851220	13 September 1985	Dale L MISSISSIPPI POWER & LIGHT CO.	Responds to NRC 850611 Request for Addl Info Re Steam Condensing Mode.Listed Methods for Predicting Chugging Will Be Evaluated.Evaluation Scheduled for Completion by 851220	Request
AECM-85-0233, Forwards Weir Wall Overflow Probability Analysis. Because of Very Low Probability of Occurrence & Leak of Safety Significance for Worst Case Postulated Overflow (Ref AECM-85/0046),corrective Actions Not Warranted	4 October 1985	Dale L MISSISSIPPI POWER & LIGHT CO.	Forwards Weir Wall Overflow Probability Analysis. Because of Very Low Probability of Occurrence & Leak of Safety Significance for Worst Case Postulated Overflow (Ref AECM-85/0046),corrective Actions Not Warranted	Other
AECM-85-0376, Submits Info Re Wier Wall Overflow,Per 851021 Request.Topics Addressed Include Overflow Effect Upon Uninsulated Drywell Piping & Evaluation of Recirculation Piping Relative to Predicted Water Level.Ge Rept Re Containment Issue Encl	27 November 1985	Dale L MISSISSIPPI POWER & LIGHT CO.	Submits Info Re Wier Wall Overflow,Per 851021 Request.Topics Addressed Include Overflow Effect Upon Uninsulated Drywell Piping & Evaluation of Recirculation Piping Relative to Predicted Water Level.Ge Rept Re Containment Issue Encl	Other
AECM-86-0012, Discusses Status of Util Activities in Response to NRC 850611 Request for Addl Info Re Review of Possible Condensation Oscillation Loads from Chugging. Dedicated Lines from RHR HX Noncondensible Vents Preferred Resolution	28 January 1986	Dale L MISSISSIPPI POWER & LIGHT CO.	Discusses Status of Util Activities in Response to NRC 850611 Request for Addl Info Re Review of Possible Condensation Oscillation Loads from Chugging. Dedicated Lines from RHR HX Noncondensible Vents Preferred Resolution	Request
AECM-86-0143, Clarifies Planned Resolution of Possible Loads from Chugging Caused by Steam & Gas Venting Into Suppression Pool Through RHR Relief Valve Discharge Line.Rhr HX Vent Line Header Will Have Dedicated Discharge Line to Pool	16 May 1986	Kingsley O MISSISSIPPI POWER & LIGHT CO.	Clarifies Planned Resolution of Possible Loads from Chugging Caused by Steam & Gas Venting Into Suppression Pool Through RHR Relief Valve Discharge Line.Rhr HX Vent Line Header Will Have Dedicated Discharge Line to Pool	Other
AECM-86-0175, Corrected Response to 860326 Request for Addl Info Re Listed Humphrey Concerns,Including Addl Submerged Structure Loads & Containment Open Area,Correcting Omission of Page 2 from Attachment 3	14 August 1986	Kingsley O MISSISSIPPI POWER & LIGHT CO.	Corrected Response to 860326 Request for Addl Info Re Listed Humphrey Concerns,Including Addl Submerged Structure Loads & Containment Open Area,Correcting Omission of Page 2 from Attachment 3	Request
ML20204J145	23 March 1987	Office of Nuclear Reactor Regulation	SER Supporting Licensee Responses to Humphrey Concerns on Safety of Mark III Containment Design	Other
ML20204J116	23 March 1987	Office of Nuclear Reactor Regulation Kintner L	Forwards SER Re Licensee Responses to Humphrey Concerns on Mark III Containment Design.Humphrey Concerns Satisfactorily Resolved.Licensee Will Continue to Prohibit Use of RHR Steam Condensing Mode Until Design Mods Implemented	Approval