ML19337A592

LER 80-060/03L-0:on 800825,while Performing HPCI Sys Performance Test,Hpci Sys Declared Inoperable Due to Oscillating Steam Throttle Valve.Caused by Dirt Filtering Through Sys.Sys Recalibr

ML19337A592
Person / Time
Site:	Pilgrim
Issue date:	09/23/1980
From:	Mcloughlin M BOSTON EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19337A565	List: ML19337A564 ML19337A592
References
LER-80-060-03L, LER-80-60-3L, NUDOCS 8009290313
Download: ML19337A592 (1)

Text

NRC FOIM 364 U. S. NUCLEAR '4EGULATORY COMMISSION

(7 77) ,

LICENSEE EVENT REPORT l CofdROL BLOCK: l l (PLEASE PRINT OR TYPE ALL RECUIRf!O INFORMATION) l l l l 6

lh jo l t l lM l A lP lP l S l 1 l@l 0 l 0 l - l 0 l 0 l 0 l 0 10 l- l0 l026l@l4l1l1l1l1l@l 2S uCENSE TYPE JO l

57 CAT 58 l@

> 8 3 LICENSEE COCE 14 IS UCENSE NUMSER CON'T ll 0 l 1 l $oOp$

lL @l 0 l 5 l 0 l - l 0 l 2 l 9 l 3 @l0 l8 l2 l 5 l 8 l 0 l@l 0 l 9 l ..,. 3 l 8 10dol@

7 4 60 61 COCKET NUMSER 68 69 EVENT DATE 74 7S REPonT QATE EVENT DESCRIPTION AND PROSA8LE CONSEQUENCES h

1012 l l On August 25, 1980 at approximately 0600 hours0.00694 days <br />0.167 hours <br />9.920635e-4 weeks <br />2.283e-4 months <br /> while conducting HPCI system oer- I 1o i3 i I formance test 8.I.6, the HPCI system was declared fnoperable. The HPCI system l

l o 14 l l steam throttle valve was oscillating. The HPCI control system was recalibrated, I i

o ;3l l the system satisfactorily tested and returned to service at approximatuly 1945 l ia ja ; l hours the same day. l 10171 I I l o is i l I SCoEo" CCC SL8 CODE COMPONENT CODE $18COC'E S18 OCE 10191

'l* Sl Fl@ '

lX l@ l Zlh l Z ' l Z l Z lZ lZ l lh lZlh "

lZlh

. SEcUJNTIAL OCCURAENCE REPCRT REVISION L EVENT YE AR REPCM T NO. CCOE TYPE NO.

aP h yu'ER/ROu l8 l0 l l-l l 0l 6i 0l26 l/l 10 l3 l lLl l-l 10l 21 22 23 24 27 28 29 30 31 32 T N AC ON ON P NT YE HOUR $ S8 i FCP 8. SUP L E MA UFA RER IZl@lZl@ l Zl@

33 34 35 l Zlh 36 lOlOl0l0l 31 40 l N lh 41 l,.U jh 42 lN lh lTl1I4l7lh;!

43 44 47 l CAUSE DESCRIPTION AND CORRECTIVE ACTIONS li;o ; j Subsequent calibration of the control instrumentation indicated no anomaly. Tests l

[,,,, l conducted with the assistance of a factory representative were satisfactory. It is I

,,,,,y believed that dirt which eventually filtered through the system caused a temporary l

,,,,,; malfunction of the turbine throttle valve. l l i 14 6 I I 7 s 9 80 STA  % PCWER OTHER STATUS bl5 C RY OISCOVERY CESCRIPTION I1 iS I l El@ l 1 l 0 l0 l@l N.A. } lBl@l Routine Surveillance l i

ACTIVtTY CC TENT P. ELE SED OF RELEASE AMOUNT 0F ACTIVITY L OCATION CF RELE ASE lt l6 l l 7 8 9 lg lZ l 10 l

11 N.A.

44 l l 45 N.A. l 80 PERSONNEL EXPOSURES NUMSER TYPE O ESCRIPTION l t l 7 l l 0l 0 l 0 l@l Z l@l N.A. l PERSc~~E t iNau'4 ES NuuSER oESCRiPTiONh l t is8 l9l 010 l 0 lhl N.A. l 7 11 12 80 LOSS OP CR DAMAGE TO FACluTY Q TYPE DESCRIPTICN  %,/

L1 MJ l Z]@l10 N.A. l 7 8 9 80 PUBLICITY NRC USE ONLY iSSUEo OESCRIPTION

8 OHMO 3I3

• 7 2 o 8 9 W hl 10 N.A. l 68 69 lll1lllllllll1 80 . 3