ML19340D221

LER 80-091/03L-0:on 801122,air Operated Valve 5045K Did Not Operate During Routine Surveillance Testing for Drywell to Torus Vacuum Breaker Operability.Cause Yet to Be Determined.Investigation Scheduled,Rept to Be Issued

ML19340D221
Person / Time
Site:	Pilgrim
Issue date:	12/22/1980
From:	Mcloughlin M BOSTON EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19340D215	List: ML19340D214 ML19340D221
References
LER-80-091-03L, LER-80-91-3L, NUDOCS 8012290345
Download: ML19340D221 (1)

Text

NTC FORM 366 U. S. NUCLEAR REGULATORY COMMISSION (7 77)

LICENSEE EVENT REPORT

~

CONTROL BLOCK: l l l l l l lh (PLEASE PRINT OR T4E ALL REQUIRED INFORMATION) 10 lil8 9l MI A! P! P! S! I!h! O ! O!  ! O ! O! O ! O ! O ! !O!O !h! 4 lLICENSE 1 ! 1 TYPE l 1lJO1lh!6 7 C lA T b8lh 14 15 LICENSE NUM8EH 26 26 3

7 LICENSEE CODE CON'T lO111 7 8 ERCE 60 dl0 15 l0 DOCKET 61 l -l 0lNUMB2lER9 l 3 @l 68 1l 112 69 EVENTl DATE 2l 8l 0 l@l Il 212l 74 7S REPORT 2l DATE81080l@

F. VENT DESCRIPTION AND PROB ABLE CONSEQUENCES h Ioi2l l On November 22, 1980 during routine surveillance testing for drvwell to l gyl torus vacuum breaker operability, air operated valve 5045K did not operate. l lo li] ] The valve remained in the closed position as indicated by position and l lo Isl l alarm annunciation on Panel C7 and Panel 905 in the Control Room. A l lo Is l l maintenance request was issued to repair the valve. l l

l 0 l 71 l I

10181 1 80 i 7 8 9 E CODE SveCO E COMPON ENT CODE SUS o'E SU E 10191 lS lA lh l Xlh l Z!h l Zl 2l Zl Zj Zl Zl h [Z_j h (Zj h 12 13 18 19 20 7 8 9 to 11 SEQUENTI A L OCCURRENCE REPORT REVtSION EVENT YEAR REPORT NO. CODE TYPE NO.

LER RO h ,R E l 80l l l-l l0l9l1l y 1013l 28 29 l Ll 30 l-l 31 l0l 32

,,_21 22 2J 24 26 27 T K N AC ON ON PL NT ME HOURS 22 58 i FOR 8. SUPPL MANUF CTURER lJ3X lgl34E l@ lZl@ lZl@ l0l0l0l0l lNl@

41 l

l@ l N lg l G l 2 l 0 l 2 lg 35 M 31 40 42 43 44 47 CAUSE OESCRIPTION AND CORRECTIVE ACTIONS li io l l The TORUS was closed at the time of this event preventing access to the l gi vacuum breaker for investigation. This malfunction has been scheduled I i,,7, l for investigation during the next plant outage, during which a drywell entry l

[ij3l l is required. A follow-up report will be issued when this problem is resolved. l l

11 141 l 80 7 8 9 ST S  % POWER OTHER STATUS IS RY OlscoVERY DESCRIPTION Routine testing I1 15 l lE l@ l 1l 0 l 0 l@l NA l lBl@l l ACTIVITY CO TENT RELEASED OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE NA NA l l1 l6 l @ @l l l PERSONNEL EXPOS ES NuM8eR 11 l 7 l l0 l 0 Zll0 lhl TYPE NA

@loESCRiPriON h l PERSONNEL INJ1 RIES NUMBER DESCRIPTION y l0 l0 l0 l@l NA l 7 8 9 11 12 80 LOSS OF OR DAMAGE TO FACILtTY TYPE DESCRIPTION Q lZ l@l 7 8 9 10 NA 80 l

U32200]q7 j NRC USE ONLY lllllllllllll; 7

2 o 8 9 ISSUE

[N l 10

@oISCRiPriON@ NA l 68 69 80 3 617-746-7900 o Mr. M. Thomas McLoughlin g