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| {{Adams
| | #REDIRECT [[05000293/LER-1980-046-03, /03L-0:on 800802,during Reactor Shutdown,High Water Level Isolation Main Steam Line Drain Valve MD-220-1 Failed to Isolate.Caused by Incorrect Setpoint on Yarway Level Switch.Switch Adjusted & Recalibr]] |
| | number = ML19331D711
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| | issue date = 08/29/1980
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| | title = LER 80-046/03L-0:on 800802,during Reactor Shutdown,High Water Level Isolation Main Steam Line Drain Valve MD-220-1 Failed to Isolate.Caused by Incorrect Setpoint on Yarway Level Switch.Switch Adjusted & Recalibr
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| | author name = Whitney G
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| | author affiliation = BOSTON EDISON CO.
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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 = 05000293
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| | license number =
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| | contact person =
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| | document report number = LER-80-046-03L, LER-80-46-3L, NUDOCS 8009030483
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| | package number = ML19331D703
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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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| =Text=
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| {{#Wiki_filter:,uwuan -
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| (7 77)
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| LICENSEE EVENT REPORT CONTROL BLOCK: I (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) l l l l l lh 6
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| jo ltl l Ml Aj P l P j S l 1 l@l 0 l 0 l - l 0 l 0 l 0 l 0 l 0 l- l 0 l 0 25[@l 4 l 1 l 1 l1 l 1 l@l 14 15 LICENSE NUMBER 26 LICENSE TYPE JO l
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| $7 CAT 58 lg 7 8 9 LICENSEE CODE CON'T 10111 S$n"Cs l L l@l 0 l 5 DOCKET l 0 l -NUMBER l 0 l 2 l 9 l683 l@l 0 lEVENT 810DATE l 2 l 8 l 074 l@l 0 l REPORT 8 l 2 DATE l 918 l 080 l@
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| 7 8 60 61 69 75
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| )
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| i EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h 1012 l l At 2330 on August 2, 1980 the high water level isolation main steam line drain valve j i o i3, l (M0-220-1) did not isolate. Reactor was in shutdown at this time. The I&C lab l
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| ;o ;4; j was asked to investigate. l 101 s 1 I l 10161 l l 10171 l i 1018 I I 80 I
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| 7 8 9 E CODE S SC E COMPONENT CODE SU8 CODE SU E lTT91 7 8
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| 'l sl Dl@ W@ lB l@ l Il Nl Sl Tl Rl Ul@ W@ l Zl@
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| 9 to 11 12 13 18 19 20
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| _ SEOUSNTIAL OCCURRENCE REPORT REVISION EVENT YEAR REPCRT NO. CODE TYPE N O.
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| LER
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| @ yug/ROaE l8 l0 l l-l l0 14 l6 l d l 0l 31 lLl [---J l0 l 21 22 23 24 26 27 28 29 30 31 32 K N ACTO ON PL NT M HOURS 22 SS I FOR 8. SUPPLIE MA FACTURER l33E lgl34El@ lZl@ l36Z l@ l0 l0 l0 l0 l 31 lN 41 l@ lN ]@ lN l@ lYl0l1l0l@
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| JS 40 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS 27 IiiOI l Investigation revealed a setpoint on a Yarway level switch was not correct. Re- l
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| ;i ;il l calibration and adjustment of the Yarway was conducted. l l
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| 11 121 l I
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| L1.12] I 1
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| 11 14 I i 80 7 8 9 STA S % POWER OTHER STATUS dis O RY DISCOVERY DESCRIPTION N.A. l l A l@l Operational event l I115 l l G I@ l 0 l 0 l 0 l@l A TlVITY CO TENT RELEASEO OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE
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| , 11 l6 l W @ l Z l@l N.A. l l N.A. l PERSONNEL EXPOS ES NUM8ER 11 17 l l 0 l 0 l 0 l@lTYPE N.A.
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| 4 l @l DESCRIPTION l PERSONNE L INJURIES NUMBER DESCRIPTION N.A. ]
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| l2 l 8 l l 0 l 0 l 011l@l12 80 7 8 9 LOSS OF 1R OAMAGE TO FACILITY TYPE DESCRIPTION N.A.
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| 7 1 9 8 9
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| ] @l 10 80 l
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| NRC USE ONLY
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| @ ~80 0 9 0 3 04 K_3 N.A.
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| 2 0 ISSUF @OE CRsPTION l l lllllllllllllf 7 8 9 to 68 69 80 .
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| NAME OF PREPARER PHONE:
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| .,. , _ _ _}}
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