ML17317B408

LER 79-025/03L-0 on 790702:safety Valve Was Lifted on Steam Generator 3,which Brought Reactor to sub-critical Condition. Operation of Safety Valve Was within Allowed Setpoints.Gag Removed & High Power Trips Reset

ML17317B408
Person / Time
Site:	Cook
Issue date:	07/31/1979
From:	Murphy C INDIANA MICHIGAN POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17317B406	List: ML17317B405 ML17317B407 ML17317B408
References
LER-79-025-03L-01, LER-79-25-3L-1, NUDOCS 7908060325
Download: ML17317B408 (1)

Text

NRC FORM 366 U. 8 UCLEAR REGULATORY COMMISSION P77)

Qp O.e LICENSEE EVENT REPORT CONTROL BLOCK: QI IPLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

~01 7 8 9 M I 0 LICENSEE CODE c

LLANO c

I 2

14 Qso 15 0 0 0 6

0 0 0 LICENSE NUMBER 0 0 0 0 25 03 26 4 '

LICENSE TYPE

'04~03 30 57 CAT 58 CON'T

~o soURGE 0 5 0 0 0 3 1 6 7 0 7 0 2 7 9 8 0 7 8 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES Q10

~03 LIFTED ON ¹3 STEAM GENERATOR. THE REACTOR WAS BROUGHT TO A SUB-CRITICAL CONDITION 4 BEFORE REACHING 541 F WHEN TAVG DECREASED TO 532 F THE SAFETY RESEATED. PRIOR

~OS TO RESUMING STARTUP AND TO ALLOW THE SAFETY VALVE TO COOL THE POWER RANGE HIGH

~O6 POWER TRIPS WERE LOWERED TO 85 AND T

~O7 TECH. SPEC. 3.7.l.l.a.

~08 80 7 8 SYSTEM CAUSE CAUSE COMP. VALVE CODE CODE SUBCODE COMPONENT CODE SUBCODE SUBCODE Q11 ~X072 ~2Q13 V A L V E X Q14 ~XQEE ~B Qs 7 8 9 10 11 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT REVISION Q17 LF RIRO REPoRT ACTION FUTURE EVENT YEAR

~79 21 22 EFF ECT

+

23 SHUTDOWN

~02 24 REPORT NO.

26

+W 27

~03 28 ATTACHMENT CODE 29 NPRDK TYPE

+L 30 PRIME COMP.

31 NO.

+0 32 COMPONENT TAKEN ACTION ON PLANT METHOD HOURS ~22 SUBMITTED FORM SUB. SUPPLIER MANUFACTURER 33 QIB~Q>>34 L~JQ2O 35 M>Q2' 36 37 0 0 6 MNQ23 mNQ24 MLQ26 D 2 4 3 Q26 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS Q27 o THE SAFETY VALVE OPERAT D WITH N GAG WAS REMOVED AND THE POWER RANG H H P 4

7 8 9 80 FACILITY STATUS  % POWER OTHER STATUS Q

~gO METHOD OF DISCOVERY DISCOVERY DESCRIPTION Q32

~ls C Q23 ~Qp 4 Q23 NA 44 LAJQ>> OPERATOR OBSERVATION 7 8 9 10 12 13 45 46 80 ACTIVITY CONTENT RELEASEO OF RELEASE AMOUNT OF ACTIVITY Q LOCATION OF RELEASE Q EKI LzJ Q LzJS 7 8 9 'IO 11 NA 44 45 NA 80 PERSONNEL EXPOSURES.

NUIEIBER TYPE DESCRIPTION QSB 7

8

~00 0 0~2033 13 NA 80 7 9 11 12 PERSONNEL INJURIES NUMBER DESCRIPTIONQ41

~s ~ap 7 8 9 0 Qo 11 12 NA 80 LOSS OF OR DAMAGE TO FACILITY TYPE DESCRIPTION Q43 79080603'45 Q42 NA 7 8 9 10 80 PUBLICITY ISSUED DESCRIPTION Q NRC USE ONLY 7 8

~YQ 9 10 VERBALLY NOTIFIED LOCAL NEWS MEDIA ABOUT NOISE.

68 69 80. g NAME OF PREPARER C. E. MURPHY PHDNE, 61 6 465 5901 X 31 6