05000316/LER-1979-015-03, /03L-0 on 790409:during Plant Startup,Small Crack & Pinhole Leak Found in Body of FMO-232,at Inlet Side of Valve Adjacent to Weld.Cause of Crack Not Determined. Radiographs of Area Reviewed

/03L-0 on 790409:during Plant Startup,Small Crack & Pinhole Leak Found in Body of FMO-232,at Inlet Side of Valve Adjacent to Weld.Cause of Crack Not Determined. Radiographs of Area Reviewed

ML17317B190
Person / Time
Site:	Cook
Issue date:	05/09/1979
From:	Wizner D INDIANA MICHIGAN POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17317B189	List: 05000316/LER-1979-015-03, /03L-0 on 790409:during Plant Startup,Small Crack & Pinhole Leak Found in Body of FMO-232,at Inlet Side of Valve Adjacent to Weld.Cause of Crack Not Determined. Radiographs of Area Reviewed 05000316/LER-1979-016-03, /03L-0 on 790412:failure of Interlock,Which Prevents Opening Both Containment 650 Ft Level Airlock Doors.Caused by Slack in Actuator Cables & Weak Spring.One Cable & Spring Replaced ML17317B188
References
LER-79-015-03L-01, LER-79-15-3L-1, NUDOCS 7905150493
Download: ML17317B190 (2)

LER-1979-015, /03L-0 on 790409:during Plant Startup,Small Crack & Pinhole Leak Found in Body of FMO-232,at Inlet Side of Valve Adjacent to Weld.Cause of Crack Not Determined. Radiographs of Area Reviewed

Event date:
Report date:
3161979015R03 - NRC Website

text

U. S. NUCLEAR REGULATORY COMMISSION NRC FORM 366 I7-77)

ICENSEE EVENT REPORT COII)TROL BLOCK:

Ql (PLEASE PRINT OR TYPE ALLREQUIRED INFORMATION)

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LICENSEE CODE 14 15 LICENSE NUMBER 25 26 LICENSE TYPE 30 57 CAT 58 CON'T

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8 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES Qlo

~O2 DURING PLANT STARTUP A SMALL CRACK AND PINHOLE LEAK WAS FOUND IN THE BODY

~O3 4

OF FM0-232, AUX.

FEEDWATER TO 53 S/G MOVE AT THE INLET SIDE OF THE VALVE ADJACENT TO THE WELD.

SYSTEM WAS REMOVED FROM SERVICE CONSTITUTING IN-

~OS OPERABLE FLOW PATH PER T.S. 3.7. 1.2.

THE CRACK WHICH WAS'APPROX. 3/8" LONG WAS GROUND OUT AND THE AREA WAS REPAIRED BY WELDING.

NDE INCLUDED PT RT AND HYDROSTATIC TEST AT 2100 PSIG.

ACTION RE UIREMENTS OF TECH.

SPECS.

WERE COMPLIED WITHE HEAL'TH AND SAFETY OF THE PUBLIC WAS NOT JEOPARDIZED.

~OB 80 7

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SYSTEM

CAUSE

CAUSE COMP.

VALVE CODE CODE SUBCODE COMPONENT CODE SUBCODE SUBCODE

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10 11 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT REVISION LF RgRP EVENT YEAR REPORT NO.

CODE TYPE NO.

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+

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21 22 23 24 26 27 28 29 30 31 32 ACTION FUTURE EFFECT SHUTDOWN ATTACHMENT NPRDP PRIME COMP.

COMPONENT TAKEN ACTION ON PLANT METHOD HOURS +22 SUBMITTED FORM SUB.

SUPPLIER MANUFACTURER

~Q18 ~ Qig

~~Q20 ~ O2i Q22 ~ Q24 ~ Q28 c

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0 Qgs 33 34 35 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS Q2I o

CAUSE OF THE CRACK COULD NOT BE DETERMINED.

RADIOGRAPHS OF THE AFFECTED AREA WHICH WERE ON FILE WERE REVIEWED, BUT DID NOT REVEAL ANY INDICATIONS IN THE 1'

VICINITY OF THE CRACK.

NO SIMILAR PROBLEMS HAVE BEEN DETECTED ON LINES TO THE OTHER S/G'S.

NO FUTURE ACTION IS PLANNED.

4 ACTIVITY CONTENT RELEASED OF RELEASE AMOUNTOF ACTIVITYQ

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10 11 44 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION Q39 2 ~00 0

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11 12 13 i

PERSONNEL INJURIES NUMBER DESCRIPTION Q41 8

~oo 0

Q4o NA LOCATION OF RELEASE Q36 45 7

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FACILITY

~3P METHOD OF STATUS

% POWER OTHER STATUS ~

DISCOVERY DISCOVERY DESCRIPTION Q32 8

C Qgs ~01 2

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~AQsi OPERATOR OBSERVATION 8

9 10 12 13 44 45 46 80 80 80 80 7

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7, 8

9 IO NAME OF PREPARER DAVID G.

WIZNER 9

11 12 LOSS OF OR DAMAGETO FACILITY 43 TYPE

DESCRIPTION

Z Q42 NA 9

10 PUBLICITY ISSUED DESCRIPTION~

L~JQ44 80 NRC USE ONLY 80 68 69 80 i8 PHONE.

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