ML17317B114

LER 79-021/03L-0 on 790327:pressure in RCS Was Found Below Tech Spec Limit While in Mode 1.Caused by Operator Inadvertantly Opening Auxiliary Spray Valve to Pressurizer QRV-51.Valve Closed Upon Discovery

ML17317B114
Person / Time
Site:	Cook
Issue date:	04/17/1979
From:	Dickson J INDIANA MICHIGAN POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17317B111	List: ML17317B110 ML17317B112 ML17317B114
References
LER-79-021-03L, LER-79-21-3L, NUDOCS 7904240387
Download: ML17317B114 (2)

Text

NRC FORM 366 U. S. NUCLEAR REGULATORY COMMISSION

{7-77)

ENSEE EVENT REPORT

~ \

CONTRIRIL BLOCK: Q1 (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

[oatj8 7 9 II I 0 LICENSEE CODE C C 1

I 14 Q 0 0 0 6

0 0 0 0 LICENSE NUMBER 0 0 0 0 25 Q4 26 1 I LICENSE TYPE 1 I 30 O~Q 57 CAT 58 CON'T

~o1 """ ~LQB 0 5 0 0 0 3 1 5 Q70 3 2 7 7 9 QB 0 4 I 7 7 Qe 7 8 60 61 DOCKET NUMBER 68 69 'VENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES QIO WHI E IN MODE 1 THE PRESSURE IN THE R ACT R C A BEL W 2220 PSIA

~O3 CONTRARY TO TECH. SPEC. 3.2.5.b. ACTION STATES RESTORE WITHIN 2 HOURS. PRESSURE

~O4 WAS BELOW LIMIT FOR 6 MINUTES AND LOWEST PRESSURE ATTAINED WAS 2190 PSIA. NO

~OS PROBABLE CONSEQUENCES.

~OB

~OB 80 7 8 SYSTEM CAUSE CAUSE COMP. VALVE CODE CODE SUBCODE COMPONENT CODE SUBCODE SUBCODE

~CB Qll A Q12 ~A 12 Q13:

13 Z Z Z Z ~

Z Z Qll 18

~Z 19 Q15 ~Z 20 Qlg 7 8 9 10 11 REVISION

~M M0'C SEQUENTIAL OCCURRENCE REPORT Qll LERIRO REPoRT EVENT YEAR M29 U REPORT NO.

U~

CODE TYPE

'31 U

NO.

21 22 23 24 26 27 28 29 30 1 32 ACTION FUTURE EFFECT SHUTDOWN ATTACHMENTP NPRDP PRIME COMP, COMPONENT HOURS +22 SUBMITTED FORM SUB. SUPPLIER MANUFACTURER TAKEN ACTION

~HQ15 ~Hog ON PLANT

~ZQ25 METHOD

+2QET 0 0 0 ll +N Q23 ~NQ24 ~2 Q25 Z 9 9 9 QEg 33 34 35 36 37 40, 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS Q27 o WHEN ATTEMPTING TO LEED P HE EA T R OP RATOR INADVE TENTL P N D RV-51. VALVE WAS CLOSED ON DISCOVERY THAT IMPR P ALVE WAS OPENED. OPERATORS 3 HAVE BEEN INSTRUCTED THAT CARE MUST BE OBSERVED WHEN OPERATING CONTROLS.

4 80 7

~l5 8 9 FAG I LIETY STATUS,--.'A POWER Ei Q25 ~IO 0 Q29 OTHER STATUS NA

~ METHOD OF DISCOVERY

~AQ31 1

DISCOVERY DESCRIPTION Q32 OPERATOR OBSERVATION 7 8 9 10 12 13 44 45 80 ACTIVITY RELEASED OF RELEASE CONTENT AMOUNT OF ACTIVITYQ36 LOCATION OF RELEASE Q ZZ 7 8 uZQ33 ~Q34 9 10 NA 44 45 NA 80 PERSONNEL EXPOSURES

~l~ ~00 NUMBER 0 QET TYPE

~EQ35 DESCRIPTION Q39 NA ZO "K'(27 387 80 7 8 9 11 12 13 PERSONNEL INJURIES NUMBER DESCRIPTION 41 Pap8 9~OO 7

08 11 12 NA 80 LOSS OF OR DAMAGE TO FACILITY TYPE DESCRIPTION Q43 9 Z Q42 NA 8 9 10 80 7

P U 8 L I CITY NRC USE ONLY ISSUED DESCRIPTION ~S Eg KZ Ladle 7 8 9 10 68 69 80 O

45 0

NAME OF PREPARER JAMES D. DICKSON (616) 465-5901

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