ML19308D278

RO-77-04:on 770101,control Switch for Decay Heat Valve 42 Placed in Open Position Permitting Flow Path from RCS to Reactor Bldg Sump During Cycling Demonstration.Caused by Personnel Error.Personnel Cautioned to Follow Procedures

ML19308D278
Person / Time
Site:	Crystal River
Issue date:	01/24/1977
From:	Stewart W FLORIDA POWER CORP.
To:
Shared Package
ML19308D104	List: ML19308D103 ML19308D278
References
NUDOCS 8002270724
Download: ML19308D278 (1)

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LICENSEE EVENT REPO' CONTROL 8 LOCK:l l l l l l l (PLEASE PRINT ALL REQUIRED INFORMATION) 1 6 NAME LCENSE NUMBER 7 89 Irltlclale13l 14 10101-101 01 Olo lo I-101 ol 15 14 11 11 I ill I TYPE lc li j 25 26 , 30 31 3d CATEGORY typ S DOCKET NUMBER EVENT DATE REPORT DATE QCON'T l 0 l 0 l

/ u 50 W y l0 l 5 l 0 l-l 0] 3l 0l 2l l0 l1l 0l 1] 7l 7l l0 l1l2 l 4 l 7l 7l b/ 59 60 61 68 69 74 76 80 EVENT DESCAIPTION Hg [_ During Cycling Demonstration of Normally Untestable Valves (SP-410), the control l 7 89 80 El switch for DHV-42 was placed in OPEN position permitting a flow path from the l 7 89 80 bl Fonctor coolant Systen to Peactor Buildine Surm. Valve was closed unon discoverv. l 7 89 80 8I 7 89 l gl 80 (77-4) l 7 89 pn,yg 80 E CODE COMPONENT CODE ER MANUFAC A VOLATON Q l ClF l W 7 89 10 11 12 l Vl AlL lV l E l Xl 17 l Al 43 l Al 2l0 l0 l lN l 44 47 48 CAUSE DESCRIPTION DE l The Operator performing the procedure failed to follow it as written. Ope rat ors l 7 89 80 SE l cautioned using this as example. Also, added caution note in proce_du 'e. l 7 89 80 l

FO F ACLif y Status  % POWER OTHER STATUS METH00 0F DISCOVERY OrSCOVERY DESCRePTON l

1 lBJ l OIO I0 l l Mode 5 l IA l l Increase in R.B. Sump Level l 7 8 9 10 12 13 44 45 48 80 AC fMTV CONTENT RELEASE 0 0F RELEASE AMOUNT OF ACTMTV 55 7 8 9 U Ul10 11 N/A I 44 I

LOCATON OF AELEASE I

45 80 '

PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTON EE l l l l Ul N/A l

7 89 11 12 13 80 PERSONNEL INJUAtES NUMBER DESCRIPTON EIl l l l N/A l

7 89 11 12 80 OFFSITE CONSEQUENCES Ql 7 89 N/A l

LOSS OR DAMAGE TO FACILITY 80 DESCRIPTON l

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7 89 10 80 1 PUBLICITY 3E l N/A l

7 89 80

/^x ACOITIONAL FACTORS

(% 'J89 l N/A 8 0 02 270 22h' ' 80 l l

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go NAME: 11 . P. Stewart \ Lh '

PHONE: (813) 866-4159 GPO 889 667