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| {{Adams
| | #REDIRECT [[05000333/LER-1979-006-03, /03X-1:on 790124,during Normal Operations,Ground Fault on 125 Station Battery a Noted.Caused by Bellows Failure on Pressure Switch Circuit safety-relief Valve 02-RV-71J.Ground Cleared.Valve Restored to Operation]] |
| | number = ML19289D161
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| | issue date = 02/16/1979
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| | title = /03L-0 on 790124:ground Fault on 125 Volts DC Station Battery a Noted.Caused by Bellows Failure (Pressure Switch Circuit) on Safety Relief Valve
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| | author name = Childs W
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| | author affiliation = POWER AUTHORITY OF THE STATE OF NEW YORK (NEW YORK
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| | addressee name =
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| | addressee affiliation = NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
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| | docket = 05000333
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| | license number =
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| | contact person =
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| | document report number = LER-79-006-03L, LER-79-6-3L, NUDOCS 7902230088
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| | package number = ML19289D158
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| | document type = LICENSEE EVENT REPORT (SEE ALSO AO RO), TEXT-SAFETY REPORT
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| | page count = 4
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| }}
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| {{LER
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| | Title = /03L-0 on 790124:ground Fault on 125 Volts DC Station Battery a Noted.Caused by Bellows Failure (Pressure Switch Circuit) on Safety Relief Valve
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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 = 05000333
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| | LER year = 1979
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| | LER number = 6
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| | LER revision = 3
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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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| | |
| =text=
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| {{#Wiki_filter:........,,.........,,., _,.....,
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| r un a -
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| 17 77)
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| LICENSEE EVENT REPORT CONTROL OLOCK: l l
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| l l
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| l l lh (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) l N l Y l J [ A l F j 1 gl 0 l 0 l - l 0 l 0 l 0 l 0 l - l 0 l 0 l 0 l@l 4 l 1 l 1 1l1l@l lg 0
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| 1 5 9 LICENSEE COCE 14 15 LICENSE NUVi!ER 25 26 LICENSE T YPE
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| .N 51 t A' Sd CON'T 5$n] Q l0l5 0 j 0 l 0 l 3 l 3 l 3 @l 0 l 1 l 2 l 4 7 l 9 l@] 0 l 2 l 116 l 7 l 9 l@
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| 0 1
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| 1 6
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| 60 61 DOCKET NUV8ER t>8 69 EVENT DATE 14 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h o
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| 2 l
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| Please See Attachment 0
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| 3 l
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| 8 9 S Y S T E *.1
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| ==CAUSE==
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| C AUS E COV8 VALVE CCCE CODE SL8 CODE COVPONENT CODE SusCOOE SUBCCCE l C l A]@ W@ l X l@ l Vl Al Ll V Ej Xl@
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| 9 10 11 12 13 18 I9 20 SEQLENTI AL OCCURRENCE REFORT REVISION
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| _ EVENT YEAR REPORT NO CODE TYPE N C.
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| L E A RO
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| l-l l 0l 22 23 24 26 27 29 29 30 31 J2 TkKEN ACTIO ON PL 'T
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| .TH HOURS S B IT $
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| FOR. EL B.
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| SUPPLIE MAN FACTLRER LvJ@
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| 33 34 J5 36 31 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS i
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| o l Please See Attachment I
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| 8 9 10 11 44 45 60 PERSCNNEL f XPOSL AES NUVPE R TYPE
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| ==DESCRIPTION==
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| 10 0101@l21@l NA l
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| 8 9 11 12 LOS? OF OR DAV AGE TO F ACILITY TYPE
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| ==DESCRIPTION==
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| NA [i
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| 9 PUBLI TY NRC USE ONLY 12 l 0 l @@ DESCRIPTION l
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| llllI I1l ll15 1%UED 68 63 80 5 A
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| 8 3 10 W VC 0
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| 1 3I b' M 2-3D N AVE OF PREPARER PHONE
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| ATTACllMENT TO 1.ER 79-006/03L-0 Page 1
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| of 3
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| During normal operation, Operations personnel noted a ground fault on 125 VDC station battery " A".
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| Investigation traced the ground to the bellows failure pressure switch circuit on safety / relief valve 02-RV-71J.
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| The ground was cicared by removing the fuses for the air operator and bellows failure pressure switch. This action required that the valve be demlared inoperabic which is contrary to Technical Specification Appendix A, Paragraph 3.6.E.1.
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| During the thirty days in which operation is permitted by specification 3.6.E.2.a, the valve was restored to a fully operable status on February 8,1979 (fifteen days after the event). This action was accomplished by installing a temporary isolated 125 VDC power supply to the bellows failure pressure switch (see Figures 1 and 2) and replacing the fuses that were initially removed to clear the ground. The circuits were checked for operability (to the extent possible from outside of primary containment) with satisfactory results and valve 02-RV-71J was declared fully operable.
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| During the Snubber Inspection Outage currently scheduled to start on March 30, 1979 repairs and restoration of the circuit will be completed and a fol'ow-up report submitted.
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