View source for 05000336/LER-1982-032, Forwards Updated LER 82-032/03X-1.Detailed Event Analysis Encl

{{Adams
| number = ML20073Q114
| issue date = 04/21/1983
| title = Forwards Updated LER 82-032/03X-1.Detailed Event Analysis Encl
| author name = Mroczka E
| author affiliation = NORTHEAST NUCLEAR ENERGY CO., NORTHEAST UTILITIES
| addressee name = Allan J
| addressee affiliation = NRC OFFICE OF INSPECTION &amp; ENFORCEMENT (IE REGION I)
| docket = 05000336
| license number = 
| contact person = 
| document report number = MP-4986, NUDOCS 8304280307
| package number = ML20073Q116
| document type = CORRESPONDENCE-LETTERS, INCOMING CORRESPONDENCE, UTILITY TO NRC
| page count = 2
}}
{{LER
| Title = Forwards Updated LER 82-032/03X-1.Detailed Event Analysis Encl
| Plant = 
| Reporting criterion = 
| Power level = 
| Mode = 
| Docket = 05000336
| LER year = 2082
| LER number = 32
| LER revision = 
| Event date = 
| Report date = 
| ENS = 
| abstract = 
}}

=text=
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NORTHEAST UTII.ITIES 9          UZ.7.C.ZT~                                               I8 afro *nE CONNECTICUT 06101
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April 21,1983 MP-4986 Mr. James M. Allan, Acting Pegional Mministrator, Pegion I U. S. Nuclear Regulatory Cmmission 631 Park Avenue King of Prussia, Pennsylvania 19406

==Reference:==
Facility Operating License No. DPR-65 Docket No. 50-336 Reportable Occurrence RO 50-336/82-32/03X-1

==Dear Mr. Allan:==

This letter forwards the Licensee Event Report 82-32/03X-1 required to be subnitted within thirty days pursuant to Millstone Unit 2 Appendix A Technical Specifications, Section 6.9.1.9.b, conditions leading to opera-tion in a degraded mode permitted by a limiting condition. 'Ihe update report is subnitted to correct the identification of 3 valves which were previously believed to be leaking. An additional three copies of the report are enclosed.
Yours truly, NORIBEAST NUCLEAR ENERGY COMPANY
                                                                   $f6' <.
E.  . Mroczka Station Superintendent Millstone Nuclear Power Station KIM/RB:mo

==Attachment:==
LER RO 50-336/82-32/03X-1 cc: Director, Office of Inspection and Enforcement, Washington, D. C. (30)
Director, Office of Managenent Information and Program Control, Washington, D. C. (3)
U. S. Nuclear Regulatory Ccmnission, c/o Document Management Branch, Washington, D. C. 20555 1
\
F304280307 830421 PDR ADOCK 05000336 S                    PDR

i ATTMIMENT 'IO LER 82-32/03X-1 NOfmEAST NUCLEAR ENERGY COTANY MILIBKNE NUCLEAR POWER STATIG - UNIT 2 FACILITY OPERATING LICENSE NGBER DPR-65 DOCKET NO. 50-336 Cause Description and Corrective Actions                                            .
t Valve 2-PC-403 is the block valve for the power operated pressurizer relief valve 2-RC-402, and war a major source of leakage. 'Ihe seal ring between the valve body and bo'inet was replaced and the leakage re aM.
Valve 2-BC-253 is the Isolation valve for the pressurizer spray control valve 2-IC-100F. In the previous report, valve 2-RC-100F was incorrectly identified to have had its packing replaced. In actuality, the packing was replaced on valve 2-BC-253 and the leakage reduced. 'Ihe leakage frem this valve was also a major source of leakage.
Valve 2-RC-405 is the block valve for the power operated pressurizer relief valve 2-RC-404, and its packing was adjusted and the leakage reduced.
In the previous report, valves 2-aC-73 and 2-RC-74 were incorrectly.
identified to be leaking. Upon investigation it was discovered that there were traces of boric acid on seal injection filters L-28A and L-28B, thus indicating leakage fran these filters. Filters Ir-28A and Ir-28B are   inch filters used by the seal injection system when venting the Reactor Coolant PLup seals during startup. The seal injection filters are only used when venting RCP seals, and are isolated during normal RCP operation. There              ,
were no parts available to repair these filters and they will remain isolated, except for venting operations, and they will be repaired when parts becane available.
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}}

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