ML20261N102
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Letter Sequence Other | |
|---|---|
TAC:48349, (Approved, Closed) | |
Questions
Results Other: 05000346/LER-1982-019-01, /01X-1:on 820419,during Steam Generator Eddy Current Insp,Some Generator Tubes Adjacent to Auxiliary Feedwater Header Showed Potential Interaction W/Header Support Sys.Caused by Collapse of Steam Bubble in Header, ML16299A368, ML20027B506, ML20027C424, ML20052A442, ML20053D846, ML20053E437, ML20053E475, ML20054G584, ML20054H506, ML20054J484, ML20058J620, ML20062C407, ML20062N798, ML20065C137, ML20079R108, ML20261N102 | |
MONTHYEARML20261N1021981-06-0505 June 1981
[Table View]Piping Isometric:Main Steam System Ctmt Bldg Steam Gen 1-2 Project stage: Other ML20052A4421982-04-20020 April 1982 RO 82-10:on 820419,insp of B once-through Steam Generator Revealed Deformations Similar to Deformations at Davis Besse.Generator a Will Be Inspected 820420.Analysis Details to Be Forwarded When Completed Project stage: Other ML20052H4161982-05-10010 May 1982 Summary of 820423 Meeting W/Utils in Bethesda,Md Re Auxiliary Feedwater Header Damage in Certain B&W Plants. Agenda Encl Project stage: Meeting ML20054G5841982-05-20020 May 1982 Submits Addl Info Re Auxiliary Feedwater Header Mod,Per NRC Request.Existing Headers Have Become Distorted Since Original Fabrication.Headers Will Be Replaced & Stabilized to Prevent Further Unacceptable Damage to Steam Generators Project stage: Other ML20053E4371982-05-21021 May 1982 Submits Agreements Reached During 820518 Discussions Re Anticipated Mods to Steam Generator Auxiliary Feedwater Distribution Headers.Written Work Scope for Attaching Nozzle Flange Prior to Work on Steam Generator Expected Project stage: Other ML20053E4751982-05-21021 May 1982 Requests Addl Info in Response to Listed Questions Re Util Responses to Aslab 820415 Memorandum & Order Concerning Repair & Future Operation of HPI Nozzles.Response Requested within 20 Days of Receipt of Ltr Project stage: Other 05000346/LER-1982-019-01, /01X-1:on 820419,during Steam Generator Eddy Current Insp,Some Generator Tubes Adjacent to Auxiliary Feedwater Header Showed Potential Interaction W/Header Support Sys.Caused by Collapse of Steam Bubble in Header1982-05-24024 May 1982 /01X-1:on 820419,during Steam Generator Eddy Current Insp,Some Generator Tubes Adjacent to Auxiliary Feedwater Header Showed Potential Interaction W/Header Support Sys.Caused by Collapse of Steam Bubble in Header Project stage: Other ML20053D8461982-05-26026 May 1982 Interim Deficiency Rept Re Design of Internal Auxiliary Feedwater Header in B&W Steam Generator.Probable Cause of Deformation Is Header Inability to Withstand Temp & Pressure.External Ring to Be Added.Next Rept Due 820730 Project stage: Other ML20054H5061982-06-21021 June 1982 Requests List of Specific New B&W Steam Generator Auxiliary Feedwater Header Design Details Required for NRC Design Review of New Scheme to Supply Auxiliary Feedwater to Steam Generators Project stage: Other ML20054J4841982-06-23023 June 1982 Requests Addl Info Re Auxiliary Feedwater Header Repair, Reported in LER 82-019,Revision 1.Info Needed 10 Days Prior to Scheduled Restart Project stage: Other ML20062C3791982-07-30030 July 1982 Forwards Application for Amend to License NPF-3,revising Tech Spec Table 3.7-3 to Reflect Steam Generator Auxiliary Feedwater Header Mod.Class III Fee Encl Project stage: Request ML20062C4071982-07-30030 July 1982 Tech Spec Table 3.7-3 Re safety-related Hydraulic Snubbers. Safety Evaluation for Auxiliary Feedwater Header Replacement Encl Project stage: Other ML20058H4621982-07-30030 July 1982 Forwards Addl Info in Response to NUREG-0737,Item II.K.3.17 Re Description of ECCS & Emergency Diesel Generator Outage Time Due to Surveillance Testing or Preventive Maint,Per 820701 Request Project stage: Request ML20062C3941982-07-30030 July 1982 Application for Amend to License NPF-3,revising Tech Spec Table 3.7-3 to Reflect Steam Generator Auxiliary Feedwater Header Mod.Identification of Snubbers Removed & Relocated During Mod to Header Encl Project stage: Request ML20058J6201982-08-0606 August 1982 Forwards Addl Info Re Auxiliary Feedwater Header Repair,In Response to NRC 820623 Request.One Oversize Drawing Encl. Aperture Card Is Available in PDR Project stage: Other ML20062N7981982-08-16016 August 1982 Forwards Info Re Auxiliary Feedwater Header/Steam Generator Mod,In Response to NRC Questions in .Also Discusses Potential for Crack Propagation in Retired Header. Util Will Propose Changes to Tech Specs within 30 Days Project stage: Other ML16299A3681982-08-24024 August 1982 Trip Rept of 820820 Site Visit Re Mods to Emergency Feedwater Headers in Steam Generators & Recent Extraction Steam Line Break Project stage: Other ML16138A5291982-08-31031 August 1982 Summary of 820624 Meeting W/Toledo Edison Co,Duke Power Co, Cpc,Smud,B&W & Anl in Bethesda,Md to Discuss Licensees Repair Program for Damaged Internal Auxiliary Feedwater Headers.List of Attendees & Matls Presented Encl Project stage: Meeting ML20027B5061982-09-14014 September 1982 Documents Review of Results of Auxiliary Feedwater Flow Verification & Water Hammer Tests.Calculation Sheet from 820825 Auxiliary Feedwater Test Run Encl Project stage: Other ML20065C1371982-09-16016 September 1982 Advises of Delay in Submittal of Proposed Tech Specs Re Auxiliary Feedwater Header Insps Due to Intensive Resource Requirements to Start Up from Refueling Outage.Submittal Expected by 821029 Project stage: Other ML20027C4381982-09-29029 September 1982 Safety Evaluation Supporting Resumption of Power Operations Following once-through Steam Generator Repair & Emergency Feedwater Sys Mods Project stage: Approval ML20027C4321982-09-29029 September 1982 Forwards Safety Evaluation Re once-through Steam Generator Repair & Emergency Feedwater Sys Mod.Licensee Authorized to Resume Power Operation Project stage: Approval ML20027C4241982-10-0606 October 1982 Discusses NRR Actions Taken Under Task Interface Agreement 82-20 for Steam Generator Auxiliary Feedwater Header Damage.Licensee Authorized to Resume Power Operation at Oconee 3 Project stage: Other ML20079R1081983-06-17017 June 1983 Part 21 Rept Re Adequacy of Fittings Supplied by Tube-Line Corp Through Capitol Pipe & Steel Products Co for Use on New Auxiliary Feedwater Headers of Steam Generators.Flanges Not heat-treated as Required by Matl Specs Project stage: Other 1982-06-23 |
| ML20261N102 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 06/05/1981 |
| From: | BECHTEL GROUP, INC. |
| To: | TOLEDO EDISON CO. |
| Shared Package | |
| ML20055A923 | List: |
| References | |
| CON-7749 M-203B, TAC-48349, NUDOCS 8207200143 | |
| Download: ML20261N102 (1) | |
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