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| {{Adams
| | #REDIRECT [[05000324/LER-1981-006-03, /03L-0:on 810115,when Main Steam Line Isolation Valve F028C Reopened During Test P.T.1.3.1P-2,main Steam Line C Indicated Min Flow.Cause Undetermined.Investigation Will Be Performed During Future Outage]] |
| | number = ML20010J047
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| | issue date = 09/18/1981
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| | title = Valve Stem Disk Separation Occurred in Valve F02BC.Caused by Failure to Install disk-to-piston Assembly Locking Pin.Cylindrical Style Locking Pin Installed in Assembly
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| | author name = Pastva M
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| | author affiliation = CAROLINA POWER & LIGHT CO.
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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 = 05000324
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| | license number =
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| | contact person =
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| | document report number = LER-81-006-03L, LER-81-6-3L, NUDOCS 8109290543
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| | package number = ML20010J030
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| | document type = LICENSEE EVENT REPORT (SEE ALSO AO RO), TEXT-SAFETY REPORT
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| | page count = 1
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| }}
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| {{LER
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| | Title = Valve Stem Disk Separation Occurred in Valve F02BC.Caused by Failure to Install disk-to-piston Assembly Locking Pin.Cylindrical Style Locking Pin Installed in Assembly
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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 = 05000324
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| | LER year = 1981
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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:NRC FORM 366 U. S. NUCLE AR REGULATORY COMMISSION 87 7Fg LICENSEE EVENT REPORT Update Report Previous Report Date 2-5-81 CONTROL BLOCK: l l
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| l l
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| l l lh (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATIONI 1
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| 6 10 l1] lN l C l B l E lP l 2 l@l0 l0 l-l0 l0 l0 l0 j0 l-l0 l0 l@l 4 l 1l 1l 1l 1l@l l
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| l@
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| 7 8 9 LICENSEE CODE 14 15 LICENSE NUMBER 25 2t>
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| LICENSE TYPE JO SF GAT 68 COM'T l0l11 3$n"C l L ]@l0 l 5 l0 l-l0 l3 l2 l4 l@l 0l 1l ll Sl 8l 1l@l 0l 9l ll 8l 8l 1l@
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| 7 8
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| 60 61 DOCKTT NUMSER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSCOUENCES h lDurine the performance of Main Steam Line Isolation Valve Closure Channel Functional l
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| O 2 l O l a l l Test, PT 1.3.1P-2, when MSiV 2-B21-F028C was given an open command signal, the flow l
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| [T[Tl l indication in main steam line C remained at zerC..
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| It was then determined that a valve l lOlsj ?etem disk separation had occurred in F028C. Both MSlVs in the steam line were closed l Lo_1.s_) I and deactivated.
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| This event did not af fect the health and safety of the public.
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| For l o
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| l0l7l l additional information see LER 2-81-60.
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| J s l Technical Specifications 3.6.3, 6.9.1.9b l
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| 80 7
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| 8 9 DE CODE S BCO E COMPONENT CODE SUB ODE SU E
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| l~o T91 I a l B 3 @ W@ W @ l V l Al L l V l E l X l@ [Fj@ ] @
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| 7 8
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| 9 10 11 12 13 18 19 o
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| SEQUENTIAL OCCURRENCE REPORT REVISION LE R/RO EVtNT YE AR REPORT NO.
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| CODE TYPE N O.
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| _ 21 22 23 24 26 27 28 29 30 31 32 AK ACT N ON PLANT MET HOURS SB IT FOR b B.
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| 40 41 42 43 '
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| 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h W lAn inspection of the valve internals showed no evidence that the valve main disk-to-piq-Iton assembly locking pin had been installed, thereby allowing the main disk to unscrewl i i lfrom the piston-and fall into the valve seat at the time of the event. The valve was l i 7
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| @ l repaired by installing a cylindrical style locking pin in the valve main disk-to-pistoq l assembly and two cylindrical style locking pins in the valve stem-to-stem disk assembly.
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| i 4 80 7
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| 8 9 STA S
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| % POWER oTHER STATUS DIS O RY DISCOVERY DESCRIPTION W@ l0 l 6 l1 l@l NA l { @l Periodic Test l
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| i s ACTIVITY CONTENT RFLIASED OF RELE ASE AMOUNT OF ACTIVITY LOCA MON OF RELEASE NA l
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| l NA l
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| l 1 l 6 l {, Zj @
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| @l 7
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| 8 9 10 11 44 45 80 PERSONNEL EXPOSURES NUMBER TYPE
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| ==DESCRIPTION==
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| j I
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| NA l
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| d l 0l 0 l 0 j@l Z l@l PERSONNE L INJURIES NUMBE R DESCRIP TION l0l0l0l@l NA l
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| 1 a 80 7
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| 8 9 11 12 LOSS OF OR DAMAGE To FACILITY TYPE
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| ==DESCRIPTION==
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| NA l
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| (_,Zjhl 1 9 i
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| Punt'ETY Q
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| 8109290543 810918 'l NRC USE ONLY l_ Njhl S
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| PDei NA l
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| l l l l l l l l l l l l l :*g ISSUE D DESCRIPTION U FDR ADOCK 05000324 2 o 68 69
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| : 80..
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| 7 8 9 10 l
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| 919-457-9521 o
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| M. J. Pastva. Jr*
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| PHONE:
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| N AME OF PREPARER
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| }}
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| {{LER-Nav}}
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