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| {{Adams
| | #REDIRECT [[05000327/LER-1980-007-01, /01T-1:on 800315,in Mode 6 Following Initial Core Loading,Discovered Incorrect Valve Operator Weights Used in Seismic Analysis for Cooling Water Valves FCV-70-133,145 & 183.Caused by Manufacturer Labeling Error]] |
| | number = ML19340B253
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| | issue date = 10/14/1980
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| | title = Engineering Found That Incorrect Valve Operator Weights Were Used for Seismic Analysis of Component Cooling Water Sys Valves.Caused by Incorrect Weights Shown on Drawings
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| | author name = Cottle W, Kirk G
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| | author affiliation = TENNESSEE VALLEY AUTHORITY
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| | addressee name =
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| | addressee affiliation = NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
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| | docket = 05000327
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| | license number =
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| | contact person =
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| | document report number = LER-80-007-01X, LER-80-7-1X, NUDOCS 8010210703
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| | package number = ML19340B248
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| | document type = LICENSEE EVENT REPORT (SEE ALSO AO RO), TEXT-SAFETY REPORT
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| | page count = 2
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| }}
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| {{LER
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| | Title = Engineering Found That Incorrect Valve Operator Weights Were Used for Seismic Analysis of Component Cooling Water Sys Valves.Caused by Incorrect Weights Shown on Drawings
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| | Plant =
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| | Reporting criterion =
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| | Power level =
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| | Mode =
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| | Docket = 05000327
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| | LER year = 1980
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| | LER number = 7
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| | LER revision = 1
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| | Event date =
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| | Report date =
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| | ENS =
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| | abstract =
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| }}
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| .I o i:l l With Unit 1 in Mode 6 following initial core loading, notification was received ggl from TVA Division of Engineering Design that incorrect (non-conservative) valve 1o,A t{ operator weights were used in the seismic analysis for component cooling water [ol3; j valves FCV-70-133,'134, and 183 (T.S.6.9.1.12.h).
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| There was no effect upon public jc sjl health or safety. Previous occurrences - none.
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| i o i l The Walworih Cocoany (valve =anu.)' shows different valve operator ::Ei'ghts on different j i i''ii I drawines for identical valves. TVA Division of Engineering Design used 116 lbs. for
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| ;i,7; } FCV-133, 134, and 183 in their piping seismic analysis. The seismic analysis has
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| ; i,31 l been rerun using the correct valve operator weights (155 lbs.). No physical changes t...il were required as'a result of the reanalysis.
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| Tennessee Valley Authority Sequoyah Nuclear Plant LER SUPPLEMENTAL INFORMATION UPDATED REPORT - PREVIOUS REPORT DAT; 3-28-80 SQRO-50-327/80007 Rev. 2 Technical Specification Involved 6.9.1.12.h Reported Under Technical Specification 6.9.1.12.h Date of Occurrence:
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| 3/15/80 Time of Occurrence: 0900 EST Unit 1 Identification and Description of Occurrence:
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| Notification was received frem TVA Division of Engineering Design that
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| )
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| incorrect (non-conservative) valve operator weights were used in the seismic analysis for component cooling water valves FCV-70-133,134, and 183.
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| Conditions Prior to Occurrence:
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| Unit 1 in Mode 6 following init'ial core loading.
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| Action specified in the Technical Specification Surveillance Requirements =et h
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| due to inocerable eaufreent. Describe.
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| j ii/A fpparent Cause of Occurrence:
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| Iacorrect valve operator weight used in seismic analysis due to error on vax e vendor drawings.
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| Analysis of Occurrence:
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| There was no effect upon public health or safety.
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| Corrective Astion:
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| The seismic ana.ysis was rerun using the correct valve op-rator weights.
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| No physical changes were required.
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| Failure Data:
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| N/A
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| }}
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| {{LER-Nav}}
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