Letter Sequence Other |
|---|
|
Results
Other: 05000344/LER-1985-013-01, Forwards Rev 0 to 01-0300-1471, Preliminary Thermal Expansion Evaluation of Reactor Coolant Loop for Trojan Nuclear Plant, as Clarification of LER 85-013-01 in Response to 860430 Telcon, ML19267A316, ML19274E248, ML19274E250, ML20197E758, ML20198Q962, ML20198R016, ML20198R908, ML20198R985, ML20198S019, ML20198S051, ML20199B502, ML20199B510, ML20202C354, ML20204F441, ML20206F998, ML20210S227, ML20210V194, ML20211G407, ML20211G419, ML20212D368, ML20235K098, ML20235Z787
|
MONTHYEARML19267A3161978-12-29029 December 1978
Informs That Due to Control Bldg Proceeding,The Mod to Operating Status Alarms of Diesel Generators Will Not Be Completed Until 790131
Project stage: Other
ML19261B7371979-01-26026 January 1979
Forwards Request for Addl Info in Order to Complete Review Re Revised Westinghouse Thermal Design Procedure & WRB-1 Critical Heat Flux Correlation.Requests Response as Soon as Possible
Project stage: RAI
ML19259B6041979-02-0707 February 1979
Forwards Request for Addl Info Re Revised Westinghouse Thermal Design Procedure & Critical Heat Flux Correlation for Facility
Project stage: RAI
ML19274E2481979-03-15015 March 1979
Forwards License Change Application 50 to Amend License NPF-1 Re Radiological Tech Specs.Certificate of Svc & Class III Fee Encl
Project stage: Other
ML19274E2501979-03-15015 March 1979
License Change Application 50 to Amend License NPF-1 Re Radiological Tech Specs
Project stage: Other
ML19254F2471979-10-31031 October 1979
Supplements 790315 License Change Application 50 Incorporating 10CFR50,App I,Radiological Effluent Tech Specs.Includes Spec Implementing 40CFR50.Util to Implement 10CFR190 Until Application 50 Approved & Issued as Amend
Project stage: Supplement
ML20197E7581986-01-31031 January 1986
Rev 0 to Preliminary Thermal Expansion Evaluation of Reactor Coolant Loop for Trojan Nuclear Plant
Project stage: Other
05000344/LER-1985-013-01, Forwards Rev 0 to 01-0300-1471, Preliminary Thermal Expansion Evaluation of Reactor Coolant Loop for Trojan Nuclear Plant, as Clarification of LER 85-013-01 in Response to 860430 Telcon1986-05-0909 May 1986
Forwards Rev 0 to 01-0300-1471, Preliminary Thermal Expansion Evaluation of Reactor Coolant Loop for Trojan Nuclear Plant, as Clarification of LER 85-013-01 in Response to 860430 Telcon
Project stage: Other
ML20210S2271986-05-15015 May 1986
Trip Rept of 860510-11 Site Visit to Participate in Licensee Cold Walkdown of Reactor Coolant Loop Piping & Components, Including Supports,To Assess Whether Cause of LER 85-013, Rev 1 Determined
Project stage: Other
IR 05000344/19860171986-05-19019 May 1986
Insp Rept 50-344/86-17 on 860505-09.No Noncompliance or Deviations Noted.Major Areas Inspected:Onsite Review Committee,Qa Test & Measurement Equipment Program & Surveillance Program
Project stage: Request
ML20198S0511986-05-23023 May 1986
Interim Rept of Independent Review of Trojan Nuclear Plant Reactor Coolant Loop Thermal Movements Evaluation Program. Supporting Info Encl
Project stage: Other
ML20198Q9621986-05-31031 May 1986
PG&E - Trojan - 1986 Snubber Valve Failure Analysis
Project stage: Other
ML20198Q9281986-06-0303 June 1986
Forwards Test Rept 17822, PG&E - Trojan - 1986 Snubber Valve Failure Analysis, Rev 0 to Temporary Plant Test TPT-166, RCS Thermal ... & Westinghouse Amend 3,Rev 2 to Procedure ISI-205,per NRC 860529 Meeting Request
Project stage: Meeting
ML20198R9081986-06-0404 June 1986
Forwards Impell Summary Rept, Evaluation of Reactor Coolant Loop for Restrained Thermal Expansion,Trojan Nuclear Plant
Project stage: Other
ML20206G7531986-06-0505 June 1986
Concludes That Adequate Assurance of RCS Integrity Demonstrated for Mode 3,hot Standby,Based on Review of 860521,0603 & 04 Ltrs & 860521 Meeting.Safety Evaluation Will Be Issued After Certification Received
Project stage: Approval
ML20198S0191986-06-0606 June 1986
Forwards Documentation from Bechtel Corp Re Review & Evaluation of Final Results of RCS Thermal Expansion Analysis & Hot Leg Shell Analysis Performed by Impell Corp. Encl Info Should Close Out Concerns in
Project stage: Other
ML20199B5101986-06-13013 June 1986
Reactor Coolant Thermal Expansion Test,Summary of Data & Predictive Curves,Heatup of 860608-10
Project stage: Other
ML20199B5021986-06-13013 June 1986
Forwards Temporary Plant Test TPT-166, Reactor Coolant Thermal Expansion Test,Summary of Data & Predictive Curves, Heatup of 860608-10, Per .Future Monitoring Program Will Be Documented by 861001
Project stage: Other
ML20211G4191986-06-16016 June 1986
Rev 0 to Reactor Coolant Thermal Expansion Test Final Predictive Curves,Heatup of 860615-16
Project stage: Other
ML20211G4071986-06-16016 June 1986
Forwards Rev 0 to Temporary Plant Test TPT-166, Reactor Coolant Thermal Expansion Test Final Predictive Curves Heatup of 860615-16, Demonstrating That Acceptance Criteria Met
Project stage: Other
ML20202C3541986-06-26026 June 1986
Informs That Remote Monitoring of Electronic Instrumentation Will Be Used to Assure That Steam Generator Snubbers Allow RCS Thermal Movement,Per 860616 Safety Evaluation.Only Remote Monitoring Will Be Repeated During Each Heatup
Project stage: Other
ML20198R9851986-06-30030 June 1986
Rev 0 to Evaluation of Reactor Coolant Loop for Restrained Thermal Expansion,Trojan Nuclear Plant, Summary Rept
Project stage: Other
ML20198R0161986-06-30030 June 1986
Rev 0 to Temporary Plant Test TPT-166, RCS Thermal Expansion Test. Addl Info on Insp of Cast Stainless Steel Hot Leg Elbows Encl
Project stage: Other
ML20206F9981986-06-30030 June 1986
SER in Support of Conclusion That Util Adequately Addressed Technical & Programmatic Aspects of Cause & Effects of Restrained Thermal Growth of Rcs.Ser Re Util Response to TMI Item III.D.3.4, Control Room Habitability Also Encl
Project stage: Other
ML20204F4411986-07-22022 July 1986
Rev 0 to Temporary Plant Test Procedure TPT-175, RCS Thermal Expansion Long-Term Monitoring
Project stage: Other
ML20210L7201986-09-24024 September 1986
Summary of 860529 Meeting W/Util in Bethesda,Md Re Inoperable Steam Generator Hydraulic Snubbers Relationship to Restrained Thermal Growth of Rcs.Supporting Info Encl
Project stage: Meeting
ML20210V1941986-09-25025 September 1986
Informs of Results of RCS Thermal Expansion Monitoring Performed During Wk of 860902.Measurements Acceptable.Data Will Be Taken When RCS Temp Reaches 340 F,In Lieu of Holding Temp at 340 F for Analysis & Evaluation
Project stage: Other
ML20235Z7871986-10-15015 October 1986
Discusses Insp on 860318-0428 & Two Special Insps on 860513- 0612 & 860804-14 & Forwards Notice of Violation & Proposed Imposition of Civil Penalty
Project stage: Other
ML20212D3681986-12-19019 December 1986
Submits Assessment of Impact of Replacing Graphite Shims W/ Carbon Steel Shims on Hot Leg Pipe Whip Restraints.Potential Effect on RCS Piping in Event of Future Contact Between Hot Leg Piping & Whip Restraints Addressed
Project stage: Other
ML20235K0981987-09-30030 September 1987
Informs That Periodicity of RCS Thermal Expansion Monitoring Surveillances Returned to Normal Following Completion of Twice Per Shift Exam to Detect Possible RCS Leakage as Reported to NRC on 870724
Project stage: Other
1986-05-09
[Table View] |
Text
c t
e W IIE&
Q But D Wohers Vce Presdmt June 13, 1986 Trojan Nuclear Plant Docket 50-344 License NPF-1 Director of Nuclear Reactor Regulation ATTN:
Mr. Steven A. Varga Director, PWR-A Project Directorate No. 3 U.S. Nuclear Regulatory Commission Washington DC 20555
Dear Sir:
Certified Results of the RCS Thermal Expansion Monitoring Program Per your letter of June 5,1986, attached are the predictive curves from the RCS heatup monitoring program. The actual data points from the heatup are plotted relative to the predictive curves. Although the piping movement was consistently as predicted, there were several loca-tions where shim adjustments were required and the respective curves are so annotated. All other locations met acceptance criteria and are hereby certified acceptable.
The RCS heatup began approximately 0600 on June 8, 1986 and the first temperature plateau (220 i10*F) was reached at approximately 0930. The measurement data from the first plateau were determined to be acceptable and Plant heatup continued at 1500. The second temperature plateau (340 110*F) was reached at 1930 and the data measurements were taken and approved for further heatup at 0030, June 9, 1986. The temperature was held at this point while repairs were made to a steam generator level transmitter. The third temperature plateau (460 110*F) was reached at approximately 2300 on June 9, 1986. The data from this plateau were evaluated as acceptable at 0112 on June 10, 1986. The final temperature plateau (557 110*F) was reached at 0530 on June 10, 1986 and the data measurements were completed. The Plant was subsequently cooled down to allow shim adjustments to be made.
During the next heatup, gap measurements will be taken at 340 110*F at the RCS hot leg whip restraints, the steam generator lower seismic sup-port ring back bumpers, and the upper steam generator seismic support ring. At 557 10*F, gap measurements will be made at all locations where shim adjustments were made. The final certified predictive curves for these locations will be forwarded to you following the heatup. Addi-tionally, the installed monitoring instrumentation at the hot les pipe whip restraints and upper steam generator coismic support ring (ie, which verify snubber movement) will be monitored during the heatup.
0606170164 g h344 DR ADOCK PDR pf e sw nmen st emno om m
i Peruand GeneralBechicCompany Mr. Steven A. Varga June 13, 1986 Page 2 During future heatups, monitoring of snubber movement and RCS hot les pipe Whip restraint gaps will be performed utilizing the instrumentation installed in these locations. As indicated on the attached predictive curves, the physical measurements taken during the last heatup correlated very well with the instrumentation values. This future monitoring pro-gram will be documented in a Plant procedure and will include acceptance criteria, actions to be taken if outside the acceptance criteria and com-pensatory action if the installed instrumentation fails. This procedure will be in place by October 1, 1986 or prior to the first heatup, if sooner, af ter return to power operations.
Based on discussions with your staff concerning the nondestructive examination of the steam generator hot leg elbows, we committed to an increased frequency of surveillances to detect possible RCS leakage. The Containment sump inventory and Containment atmosphere particulate radio-activity monitor will be recorded at least twice per shift during the next cycle. This additional survalliance will be terminated following nondestructive examination of these elbows in 1987.
Sincerely, e
Bart D. Withers Vice President Nuclear Attachments c:
Mr. John B. Martin Regionci Administrator, Region V U.S. Nuclear Regulatory Commiosion Mr. Lynn Frank, Director State of Oregon Department of Energy
