ML17317A670

LER 78-063/03L-1:on 780820,while Closing Turbine Valves at 99% Power,Steam Flow Reduced,Causing Reactor Coolant Temp to Increase & Power to Decrease.Caused by Testing Valves at Too High Power Level

ML17317A670
Person / Time
Site:	Cook
Issue date:	10/18/1978
From:	Lease R INDIANA MICHIGAN POWER CO.
To:
Shared Package
ML17317A667	List: ML17317A666 ML17317A669 ML17317A670
References
LER-78-063-03L, LER-78-63-3L, NUDOCS 7810230185
Download: ML17317A670 (1)

Text

4.

I NRC FORM366 NUCLEAR REGULATORY COMiMISSION

{4=71)-

LICENSEE EVENT REPORT CONTROL BLOCK: (PLEASE PRINT OR TYPE ALL REOUIRED INFORMATION) 1 8

~01 7 8 9 M I DC LICENSEE CODE C2Q200000000 14 LICENSE NUMBER 25 024 26 I

IICENSE TYPE 30 Q4LLJQR 57 CAT 58 CON'T

~0 ,",'"",; ~LQB 0 5 0 0 0 3 1 6 1 0 9 2 6 7 8 6 1 0 1 8 Og 7 8 60 61 DOCKETNUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES Q10 DURING A RAPID L AD REDUCTI F

~03 BELOW THE TECH. SPEC. 3.2.5.b LIMIT OF 2220 PSIA. TH W P WITH A TOTAL OF 10 MIN. BELOW THE LIMIT. RECOV RY WA

~Os TWO HOURS. NO PROBABLE CONSE UENCES.

~06

~07

~OB 7 89 SYSTEM CAUSE 80 CAUSE COMP. VALVE.

CODE COPE SUBCODE COMPONENTCODE SUBCODE SUBCODE

~CA Q11 ~XQI2 ~ZQ12 Z Z Z Z Z Z Q4 ~ZQI5 ~ZGR 7 8 9 10 11 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT REVISION QIP LFR/RO IIRPQRT ACTION FUTURE EVENTYEAR

~78 21 22 EFFECT

~

23 SHUTDOWN

~07 24 REPORT NO.

2 26

~

27

~03 28 ATTACHMENT CODE 29 NPRC44 TYPE

~L 30 PRIMECOMP.

~31 NO.

~0 32 COMPONENT TAKEN ACTION ON PLANT 'ETHOD HOURS Q22 SUBMITTED FORMSUB. SUPPLIER MANUFACTURER

~XQIB~EQIg 33 34

~ZQ20 35

~ZQ31 36 37 0 0 0 0 40

~NQ23 41

~NQ24 42

~ZQ25 43 44 Z 9 9 9 47 Q

CAUSE DESCRIPTION AND CORRECTIVE ACTIONS Q27 0

ALLOWS A POWER INCREASE TRANSIENT BUT NONE FROM DECREASE. A TECH. SPEC. REVISION REQUEST IS BEING PREPARED.

~l4 )

7 89 FACILITY STATUS %POWER OTHERSTATUS Q'AQ21

~30 METHOD OF DISCOVERY DISCOVERY DESCRIPTION

~15 ~FQ29 ~07 0 Q29 NA OPERATOR OBSERVATION 7 89 10 l2 13 44 45 48 80 ACTIVITY

~Z Q33 CONTENT RELEASED OF RELEASE

~ZQ34 AMOUNTOF ACTIVITY

- NA

~ NA I.OCATIQN OF RELEASE Q 7 89 10 PERSONNEL EXPOSURES 44 45 80 NUMBER TYPE DESCRIPTION ~3g 7

1 89

~00 0QZ 11 12 Qsa 13 NA 80 PERSQNNEI. INJURIES NUMBER DESCRIPTIONQ41 7 89

~00 0 11 Q49 12 NA 80 LOSSOF OR DAMAGE TOFACILITY TYPE DESCRIPTION Q43

~lg 89 Z Q42 NA 7 10 80 PUBLICITY NRC USE ONLY ISSUED DESCRIPTION~6 44 L~JQ44 NA 9 68 69 80 g

<65-5901 0 R. S. Lease (616)