05000293/LER-1981-039-03, /03L-0:on 810730,drywell Floor Sump Unidentified Leak Rate Exceeded Tech Spec.Caused by Packing Leak on Recirculation Discharge Vlave Mo 202-5A,Crane Co 28-inch Globe Valve.Packing Replaced

From kanterella
(Redirected from ML20010B443)
Jump to navigation Jump to search
/03L-0:on 810730,drywell Floor Sump Unidentified Leak Rate Exceeded Tech Spec.Caused by Packing Leak on Recirculation Discharge Vlave Mo 202-5A,Crane Co 28-inch Globe Valve.Packing Replaced
ML20010B443
Person / Time
Site: Pilgrim
Issue date: 08/05/1981
From: Whitney G
BOSTON EDISON CO.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20010B433 List:
References
LER-81-039-03L, LER-81-39-3L, NUDOCS 8108140475
Download: ML20010B443 (1)


LER-1981-039, /03L-0:on 810730,drywell Floor Sump Unidentified Leak Rate Exceeded Tech Spec.Caused by Packing Leak on Recirculation Discharge Vlave Mo 202-5A,Crane Co 28-inch Globe Valve.Packing Replaced
Event date:
Report date:
2931981039R03 - NRC Website

text

.

rORF5366 U.S. NUCLEAR REGULATORY COMMISSION N

n (7 - )

LICENSEE EVENT REPORT CONTROL BLOCK: l l

l l

l l lh (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) 1 6

j o l1 l l M l A l P l P l S l 1 l@l 0 l 0 l -l 0 l 0 l 0 l O l 0 l -l 0l 0l@l 4 l 1l 1l 1l 1l@l l

l@

7 8 9 LICENSEE CODE 14 15 UCENSE NUMSER 25 26 LICENSE TYPE JO 57 CAT $8 CON'T 81 1l@

ITIE S$"C l L l@l 0 l 5 l 0 l -l 0 l 2 l 9 l 3 l@l-0l 7l 3l 0l 8l Il@l 0] 8l 0l5 3

7 8

60 61 DOCKET NUMSER 6d 69 EVENT 0 ATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROB ABLE CONSEQUENCES h IoTT1i On July 30, 1981, the drywell floor sump unidentified leak rate was calculated I

g o ;3 i ;

to be 5.4 gpm. This is in excess of the Tech. Spec. Section 3.6.6.1 limit of l

I o 141 1 5 gpm.

The required reactor shutdown within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> was initiated. A drywell l

Ln l 31 l entry was made to determine cause.

I f o is 1 I I

lo lil i I

I lo is i l

$NE

    1. "oE Su8CNE C0 COMPONENT CODE SUS dE SU E

g

'] C l 1l@ W@ W@ lV l A l L l V l E l X l@ lE l@ W @

7 8

9 to 11 12 13 t3 0

20 SEQUENTIAL OCCOARENCE REPORT REY'SION LER EVENTYEAR R EPORT NO.

CODE TYPE NO.

@, reg'RO l8 l1 l

[---j l013l9l l/l l013l [L,_]

l-l 10 l 21 22 23 24 26 27 29 29 30 31 32 KN AC C

NT ME HOURS 8 IT FO 8.

PPLt MANU AC RER lB l@lZ l@

[A_j@

[Bj@

l0l0l7l3l W@

lNl@

lNl@

l Cl 6l 615l@

33 34 35 36 3/

40 el 42 43 44 g

CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h l3 lol1 A packing leak on "A" Recire. discharge valve (M0 202-5A) Crane Co. 28 inch Globe I

gl Valve was determined to be the cause of this excessive leakaze. The nackine was I

i, t 21 1 replaced, the valve leak tested and af ter other unrelated maintenance was I

liI:l l completed, the unit was placed in service.

l U.j,,4,,,1 1 80 7

a 9 SA S

% POWER OTHER STATUS Dis RY DISCOVERY DESCRIPTION N.A.

l lAl@l Operational Event l

Ii 151 W@ l016 l0 l@l A TivtTY CO TENT RELEASE AMOUNT OP ACTIVITY LOCATION OP RELEASE R W @D OF RELEASED @l N. A.

l l

N.A.

l PERSONNEL EXPOS ES oESCRiPTiON@

.NuuSER TYPE y ] 010 l 0 l@l Z l@L N.A.

l PERSONNE INJV IES NUMBER OESCRIPTION li la I l 0 l 0 l 0 l@l N.A.

l

'7-8 9 11 12 80 LOSS OP OR OAMAGE TO PACluTY TYPE

DESCRIPTION

e

[,i_[,9_j (Z,j@l N.A.

l 7

8 9 10 80 tSS:.;E @ DESCRIPTION Nl N.A.

I lllllll1lllIlf 2 o hiOS145475$[10 ~

G. G. Whitney 61 7900

~

PDR ADOCK 0500 iPARER PHONE:

p, S

y