05000293/LER-1980-087-03, /03L-0:on 801106,leak Rate in Drywell Calculated at 5.95 Gpm.Caused by Leaking Packing on B Recirculation Pump Discharge Motor Operated Valve 202-5B.Valve Repacked

/03L-0:on 801106,leak Rate in Drywell Calculated at 5.95 Gpm.Caused by Leaking Packing on B Recirculation Pump Discharge Motor Operated Valve 202-5B.Valve Repacked

ML19345D429
Person / Time
Site:	Pilgrim
Issue date:	12/05/1980
From:	Mcloughlin M BOSTON EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19345D428	List: 05000293/LER-1980-087, Forwards LER 80-087/03L-0 05000293/LER-1980-087-03, /03L-0:on 801106,leak Rate in Drywell Calculated at 5.95 Gpm.Caused by Leaking Packing on B Recirculation Pump Discharge Motor Operated Valve 202-5B.Valve Repacked
References
LER-80-087-03L, LER-80-87-3L, NUDOCS 8012150092
Download: ML19345D429 (1)

LER-1980-087, /03L-0:on 801106,leak Rate in Drywell Calculated at 5.95 Gpm.Caused by Leaking Packing on B Recirculation Pump Discharge Motor Operated Valve 202-5B.Valve Repacked

Event date:
Report date:
2931980087R03 - NRC Website

text

_

, n-.

, 3

't 4

y n %; r y,.

,.. u : s (7 77)

LICENSEE EVENT REPORT CONTROL BLOCK: l l

l l

l l lh (PLEASE PRINT OR TY"E ALL REQUIRED INFORMATION) e l o l t 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 0 l 0 l-l0 l 0 l@l 4 l 1 l 1 l 1 l 1 l@l l lQ 7

8 9 LICENSEE CODE 14 15 LICENSE NUM8ER 25 26 LICENSE TYPE JO Si CAT 5H CON'T lolti [RCE l L l@l 0 l 5 l 0 l - l 0 l 2 l 9 l 3 @l 1 [ 1 [ 0 l6 l 8 l 0 l@l 1 l 2 l 0 l 5 l 8 l 0 l@

7 8

60 63 DOCK ET NUMBER 66 69 EVENT DATE le 75 REPOPi D ATE 80 ESCRIPTION AND PROBABLE CONSEGUENCES h EVs 10l2l l On November 6. 1980 following a pump-down of the Drvwell Floor Sump, the unidentified]

y a ;3; l leak rate in the drywell was calculated to 5.95 gpm.

Technical Specification Sectioni l

[o ;4 l l 3.6.C.1 requires the reactor to be shutdown within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> when unidentified reactori l o i s J l coolant leakage within the drywell exceeds 5 gpm. The reactor was immediately shut l

l 1016l l down.

Investigation revealed that the "B" Recirculation Pumn's Discharge Motor l

lo I7l l Operated Valve 202-53 packing was leaking. The valve was repacked, satisfactorily l

l o i3 j ; leak rate tested and returned to service.

]

7 8 9 80 DE CODE St8CO E COVPO*'YNT CODE SUBCODE S

E 10191 l C l I l@ [E_j@ (3_j @ j y l A l L l v l E l x l@ l E l@ g @

7 8

9 TO 11 12 13 18 19 20 SE QU ENTI AL OCCURRENCE REPORT REVISION LER Ro EVENT YEAR REPORT NO.

CODE TYPE NO.

@ Ngar la 10 l l-l l 01817l I/l 10131 It I l-l 101 a

_ 21 22 23 24 26 27 28

'9 30 31 32 TAKEN A T ON ON PLANT METHO HOURS S8 i D

FOR 8.

SUPPt tER MANUFACTURER lB l@l Zl@

lA l@

y@

l 0 l 1l 916 l l Nl@

l N l@

l Nl@

l C l 6 l 6 l 5 l@

J3 34 35 36 3/

40 41 42 43 44 47 CAUSE DESCRIPTION AND COARECTIVE ACTIONS h l i t o l l A packing leak on valve 202-5B. a crane motor operated, 28 inch globe valve was l

lilij l determined to be the cause of the excessive leakage. The valve was repacked.

I l i 121 l I

l i l 31 I l

11 1411 1

7 3 9 80 STA

% POWE R OTHER STATUS OtSCO R DISCOVERY DESCRIPTION [T R lE l@ l 1l 0 l 0 l@l N.A.

l l A l@l Operational Event l

ACTIVITY CO TENT l1 16 l I Z l @ l Z l@l AuOuNTOr ACriviTv @ l RELEASED OP RELEASE LOCATION OF RELEASE N.A.

l N.A.

l 7

8

'3 10 tt 44 45 80 PEaSONNEL EXPOSURES NUMBER TYPE DE SCRIPTION l 1 l 7 l l 0 l 0 l 0 l@l Z l@l N.A.

l PERSoNNe't iNau' lies NUMBER

DESCRIPTION

W 10 l010 l@L N.A.

l 7

8 9 11 14 80 LOSS OF OR DAMAGE To FACILITY TYPE

DESCRIPTION

[TTl { @l N.A.

l 7

8 9 10 80 hlESCR,PTiON@

o NRC USE ONLY

,s30 E [N

2 o N.A.

l lllllllllllllj 7

8 9 to 68 69 80 li, b O 3 L I NE M.

omas McLoughlin 617-746-7900 P

PREPARER pggyg