ML17266A019

LER 78-044/03L-0 on 781121:motor Operated Valve Mv 07-13 Failed to Open Electrically Following Closure Due to Faulty Torque Switch on Valve Operator.Switch Replaced & Valve Checked

ML17266A019
Person / Time
Site:	Saint Lucie
Issue date:	12/20/1978
From:	Schoppman M FLORIDA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML17206A588	List: ML17206A587 ML17266A019
References
LER-78-044-03L, LER-78-44-3L, NUDOCS 7901030130
Download: ML17266A019 (1)

Text

NRC FOAM 366 U S. NUCLEAR RECULATORY cOAIullssION i7.77)

LiCENSEE EVENT REI"ORT 4

I

'Q

~o FIL S LI SlllQz Olo "lolol ol Ol Ol lol O'Qzl ' lll llllLIQ~~IQz J0,

.'Q~I'Q>>l 7 LICcR546 C GK, LICKVSKR4AISKR 15 5 icauSK TV)4 Si CA i Q CON'T

~o 7

"::;;.LLQ 60 41 I I CCIIKT'IUIVSKR I I I 3a 49 4')KN ~ Q*r- 75 I

RK) RTO*TK I I Q

Jc CVCIV i OESCRIPTIGIV 1NOPRC84SLECO IS-QU NICKS Go During routine. surveillance testing, motor operated valve JV 07-1B failed

~03 to open e 1 ec trica 1 ly fo 1 1 owing c 1 osure . The valve was opened manua ll and 1B Emergency Core Cooling System (ECCS) train was placed out of service. Action was taken in accordance with T.S. 3 5.2C and HV 07-lB was repaired and operationally checked, satisfactorily. The 1B ECCS l

~07 train was returred to service af ter a roximatel 38 hours4.398148e-4 days <br />0.0106 hours <br />6.283069e-5 weeks <br />1.4459e-5 months <br />. This is the t

.

~QR second occurrence of this type. (See LER 335-77-34) a 9 Croak 7

STSTc i I

' C*US 9 ~ C 'S K CQAII4. iiALy4 Cooc OK SUSCCOc CCAI)C!IKRTCQQK 'USCQQc SLS 304 7 8

~SE 0 Q" 9

~EQlz II

~AQIZ l1 ZI I AIL III 0 IE Q'- ~AQiz ~Z QI;

= .1$ I9 5 OUSEITI*L OCCUR44.ICLK RK)CRT ~

RKVISIQV ACTICN NUTURK T*ICKV ACTIO'I JJ QLJI4- Jc 1I

~ I* Q

'71 KFNKCT 0'i >LAN 5

CAUSc OESCRIpTiOI'I 1:IO CORRSCi IV= ~~iONS QZi The cause of the 11 SI4UT

~AIV LILz Wi 0-iR u'K14'JQ

~l Ji 1$

ROURS QZZ 17 40 1T ACIzuIK!Ir SlzSwTT=Q EQ LJQ LjQ 4I 07-lB malfunction was due to a faulty torque'switch

'czlox FCR,I 4US.

)zILUK CCYP, SL))L,KR 45 44 CQUz)CIjl 9!IT uIAuUSA 49 4i on the valve o erator. The tor ue switch was re laced and MV 07-lB was t o erat<orallv checked satis acto il 9

FACILI Y 5 ~ ATUS 'I )CWKzI OTIIKR STATUS Q AIPiilC9 CP QISCCu KRV )

~z a Elm ~LI 0 OQ IC I IJ NA ~B 43 Q 4$

,

OISCQVKRVOKSCRi)T:CV QSZ Surveillance Test ACTIVITY CC:ITKVI' 30 4LK ASco OS P4 I-5 ASiK AVOURT QP ACTIVITYQJS LOCATIC'IOF RKLKASK Q34

~ZQ3 )Z tQI NA 7 3 9 lc II 44 45 PKRSQNNK'C)i 5UIIKS 30 t: I z I ~Ol 0 I 0 Il Z l.:..\ NA 3 9 II ~

)KR5Ctiiicl ziii'LAi45 Vz z)SKR QKS RI4TICV Lo lo lloo ll~zl NA a II li 3" LCSS QF CR QAV AC ..Q SACILITY rvlzK 3 3CRI)IIC ~ Q3 QZQ42 NA 7 Ic

'55U40

)USLICI Y 0 SCRI)aCHS V'80%03 6.(>o . NRC USE OEILY 3)

I

'I i) IQ44 NA LN 7 3 i '.0 Sa KC I(

1f. A. Scho man 07 0 552 3802