View source for 05000282/LER-1989-010, Forwards Updated LER 89-010 Re Reactor Trip Resulting from Loss of One Reactor Coolant Pump Due to Personnel Error. Update Repts Change to Corrective Action Plans

{{Adams
| number = ML20076N472
| issue date = 05/03/1991
| title = Forwards Updated LER 89-010 Re Reactor Trip Resulting from Loss of One Reactor Coolant Pump Due to Personnel Error. Update Repts Change to Corrective Action Plans
| author name = Parker T
| author affiliation = NORTHERN STATES POWER CO.
| addressee name = 
| addressee affiliation = NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
| docket = 05000282, 05000306
| license number = 
| contact person = 
| document report number = NUDOCS 9105070225
| package number = ML20076N474
| document type = CORRESPONDENCE-LETTERS, INCOMING CORRESPONDENCE
| page count = 1
| project = 
| stage = Other
}}
{{LER
| Title = Forwards Updated LER 89-010 Re Reactor Trip Resulting from Loss of One Reactor Coolant Pump Due to Personnel Error. Update Repts Change to Corrective Action Plans
| Plant = 
| Reporting criterion = 
| Power level = 
| Mode = 
| Docket = 05000282
| LER year = 2089
| LER number = 10
| LER revision = 
| Event date = 
| Report date = 
| ENS = 
| abstract = 
}}

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Northem States Power Company 414 Nicollet Mall Minneapohs. Minnesoia 55401 1927 Telephone (612) 3345500 May 3, 1991                                                10 CFR Part 50 Section 50.73 U S Nuclear Regulatory Commission Attn; Document Control Desk Washington, DC 20555                                                                               '
PRAiPIE ISU.ND NUCLEAR GENERATING PLANT Docket Nos. 50 282 License Nos. DPR 42 50-306              DPR 60 Unit 1 Reactor Trip Resulting From Loss of One Reactor Coolant Pump Due to Personnel Error An updated Licensee Event Report for this occurrence is attached.              The purpose of the update is to report a change to our corrective action plans.
We had stated that we would replace all aluminum bus work with copper in our 4160V buses. We planned this action in order to protect against galvanic reactions between aluminum and copper in contact with each other. During our preventive maintenance of these buses, however, we have discovered that there is aluminum bus work which is not in contact with copper. This configuration is acceptable. We, therefore, do not plan to replace aluminum bus work unless it is in contact with copper. The revised corrective action reflects this decision.
Please contact us if you require additional information related to this event.
Thomas M Parker Manager                                                                                            q Nuclear Support Services c:    Regional Administrator       Region III, NRC                               C;\
NRR Project Manager, NRC                                ,g g rp uh**h Senior Resident Inspector, NRC                   -   [M    i ' { ,1, MPCA                                                                                         ]
Attn:  Dr J W Ferman Attachment 9105070225 91 % O3 PDR Z622 ADOCK 05000282                                                                                  .
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