Letter Sequence Other |
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Results
Other: 05000321/LER-1980-035, Forwards LER 80-035/03L-0, 05000321/LER-1980-035-03, /03L-0:on 800407,during Control Room Isolation Pressurization Lsft,Control Room Filter for 1241-C012A Tripped After Being auto-started.High Chlorine Isolation Trip Simulated.Caused by Flow Switch Out of Calibr, 05000366/LER-1980-023, Forwards Updated LER 80-023/03X-1, 05000366/LER-1980-023-03, While Pulling Rods in Starup Mode,Rod 46-43 Found Bypassed full-out in Rod Sequence Control Sys But Not Pulled to Presscribed Position Until Later.Caused by Personnel Error, 05000366/LER-1980-038, Forwards LER 80-038/03L-0, 05000366/LER-1980-038-03, /03L-0:on 800328,while Performing Reactor Bldg Isolation Sys Functional Test,Drywell to Torus Dp Isolation Valves Failed to Close on Isolation Signal.Caused by Component Failure.Valve Packings Loosened & Valves Closed, 05000366/LER-1980-057, Forwards LER 80-057/01T-0, 05000366/LER-1980-057-01, /01T-0:on 800415,during Vent Header Deflector Installation & Surveillance Outage,Rhr Lpic Pump Would Not Start When LOCA Signal Was Applied to Cross Channel Start Relay.Caused by Missing Relay Wire, ML19206B034, ML19260C689, NUREG-0312, Advises That Util 1979 Mod & Insp Program Is Acceptable & Satisfies NUREG-0312 requirements.NUREG-0619 Will Address BWR Nozzle & Control Rod Drive Return Line Cracking Problem
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MONTHYEARML19210A5751978-02-13013 February 1978 Forwards Completed Questionnaire Re Steam Generator Operating History Project stage: Request ML19206B0341978-03-22022 March 1978 Responds to & Concurs W/Plans for Feedwater Nozzle Insps.Requests Description of Plan for Cladding Removal & Insp Techniques within 90 Days of 1979 Insp Project stage: Other ML20244A6361979-05-16016 May 1979 Responds to D Verrellis Request for Addl Info Re Mod of Feedwater Nozzle & Sparger.Ge Licensing Rept NEDE-21821,dtd Mar 1978,provides Discussion of Causes & Proposed Solutions to Cracking Problems in BWRs Project stage: Request ML19260C6891980-01-0202 January 1980 Submits Info Re BWR Feedwater Nozzle Repair Rept,Per NUREG- 0312.GE Personnel Performed Cladding Removal on Feedwater Nozzles & Installed Piston Ring Feedwater Spargers.Each Worker Received Approx 1,251 Millirems Project stage: Other 05000366/LER-1980-023, Forwards Updated LER 80-023/03X-11980-04-10010 April 1980 Forwards Updated LER 80-023/03X-1 Project stage: Other 05000366/LER-1980-023-03, While Pulling Rods in Starup Mode,Rod 46-43 Found Bypassed full-out in Rod Sequence Control Sys But Not Pulled to Presscribed Position Until Later.Caused by Personnel Error1980-04-21021 April 1980 While Pulling Rods in Starup Mode,Rod 46-43 Found Bypassed full-out in Rod Sequence Control Sys But Not Pulled to Presscribed Position Until Later.Caused by Personnel Error Project stage: Other 05000366/LER-1980-057, Forwards LER 80-057/01T-01980-04-23023 April 1980 Forwards LER 80-057/01T-0 Project stage: Other 05000321/LER-1980-035, Forwards LER 80-035/03L-01980-04-23023 April 1980 Forwards LER 80-035/03L-0 Project stage: Other 05000366/LER-1980-038, Forwards LER 80-038/03L-01980-04-23023 April 1980 Forwards LER 80-038/03L-0 Project stage: Other 05000366/LER-1980-057-01, /01T-0:on 800415,during Vent Header Deflector Installation & Surveillance Outage,Rhr Lpic Pump Would Not Start When LOCA Signal Was Applied to Cross Channel Start Relay.Caused by Missing Relay Wire1980-04-23023 April 1980 /01T-0:on 800415,during Vent Header Deflector Installation & Surveillance Outage,Rhr Lpic Pump Would Not Start When LOCA Signal Was Applied to Cross Channel Start Relay.Caused by Missing Relay Wire Project stage: Other 05000366/LER-1980-038-03, /03L-0:on 800328,while Performing Reactor Bldg Isolation Sys Functional Test,Drywell to Torus Dp Isolation Valves Failed to Close on Isolation Signal.Caused by Component Failure.Valve Packings Loosened & Valves Closed1980-04-23023 April 1980 /03L-0:on 800328,while Performing Reactor Bldg Isolation Sys Functional Test,Drywell to Torus Dp Isolation Valves Failed to Close on Isolation Signal.Caused by Component Failure.Valve Packings Loosened & Valves Closed Project stage: Other 05000321/LER-1980-035-03, /03L-0:on 800407,during Control Room Isolation Pressurization Lsft,Control Room Filter for 1241-C012A Tripped After Being auto-started.High Chlorine Isolation Trip Simulated.Caused by Flow Switch Out of Calibr1980-04-23023 April 1980 /03L-0:on 800407,during Control Room Isolation Pressurization Lsft,Control Room Filter for 1241-C012A Tripped After Being auto-started.High Chlorine Isolation Trip Simulated.Caused by Flow Switch Out of Calibr Project stage: Other NUREG-0312, Advises That Util 1979 Mod & Insp Program Is Acceptable & Satisfies NUREG-0312 requirements.NUREG-0619 Will Address BWR Nozzle & Control Rod Drive Return Line Cracking Problem1980-05-0505 May 1980 Advises That Util 1979 Mod & Insp Program Is Acceptable & Satisfies NUREG-0312 requirements.NUREG-0619 Will Address BWR Nozzle & Control Rod Drive Return Line Cracking Problem Project stage: Other 1980-01-02
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Text
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UNITED STATES
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{ %e(
NUCLEAR REGULATORY COMMISSION pp WASHINGTON, D. C. 20555
%, %.A J' May 5, 1980 Docket No. 50-321 Mr. William A. Widner Vice President - Engineering Georgia Power Company P. O. Box 4545 Atlanta, Georgia 30302 c.ar Mr. Widner:
Your letter dated May 16, 1979, presented information on modification and the inspection program for the feedwater nozzles and the CRD return line nozzle for Hatch Nuclear Plant, Unit No. 1.
This information was relatedtoactivitiesconductedduringthe1979 refuel;ingoutage.
)
We have completed our review of your activities and conclude that your 1979 modification and inspection program is acceptable and satisfies our requirements as outlined in NUREG-0312.
i Please be advised that the final resolution of the BWR nozzle and CRD return line cracking problem will be addressed in NUREG-0619 which will be issued in the near future.
Should you have any questions on our evaluation, please contact us.
Sincerely, 1.
Robert W. Reid, Chief Operating Reactors Branch #4 Division of Licensing j
cc: See next page e
80052809Q
Mr. William Widner Georgia Power Company cc:
G. F. Trowbridge, Esquire Mr. Max Manry Shaw, Pittman, Potts and Trowbridge Georgia Power Company 1800 M Street, N. W.
Edwin I. Hatch Plant Washington, D. C.
20036 P. O. Box 442 Baxley, Georgia 31513 Ruble A. Thomas Vice President U. S. Environmental Protection P. O. Box 2625 Agency Southern Services, Inc.
Region IV Office Birmingham, Alabama 35202 ATTN:
EIS COORDINATOR 345 Courtland Street, N. E.
0 zen Batum Atlanta, Georgia 30308 P. O. Box 2625 Southern Services, Inc.
Appling County Public Library Birmingham, Alabama 35202 Parker Street Baxley, Georgia 31513 Charles H. Badger Office of Planning and Budget Mr. R. F. Rodgers Room 610 U. S. Nuclear Regulatory Commission 270 Washington Street, S. W.
P. O. Box 710 Atlanta, Georgia 30334 Baxley, Georgia 31513 Mr. H. B. Lee, Chairman Director, Technical Assessment Appling County Commissioners Division County Courthouse Office of Radiation Programs (AW 459)
Baxley, Georgia 31513 US EPA 1
Crystal Mall #2 Mr. L. T. Gucwa Arlington, Virginia 20460 Georgia Power Company Engineering Department P. O. Box 4545 j
Atlanta, Georgia 30302 l
i
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