ML20024D513

LER 83-058/03L-0:on 830628,personnel Discovered 31-day Visual Verification of Blind Flange Over Fuel Transfer Tube CPN-1 Deleted.Caused by Mistake in 750407 Rev.Flange Visually Verified & Change Sheet Written

ML20024D513
Person / Time
Site:	Cook
Issue date:	07/28/1983
From:	Stephens T INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20024D508	List: ML20024D506 ML20024D513 ML20024D517
References
LER-83-058-03L-01, LER-83-58-3L-1, NUDOCS 8308050155
Download: ML20024D513 (2)

Text

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1 8 NUMBER 69 DATE REPORT DATE EVENT OESCRIPTION AND PROBABLE CONSEQUENCES bio IO l2I IDURING REVIEW 0F THE CONTAINMENT PENETRATION SURVEILLANCE PROCEDURE IT WAS i o i 3, iDISCOVERED THAT THE 31 DAY VISUAL VERIFICATION OF THE BLIND FLANGE OVER THE FUEL l io i4i ITRANSFER TUBE, CPN-1, HAD BEEN DELETED FROM ALL REVISIONS F0LLOWING THE ORIGINAL. I IO lsi lTHIS IS NON-CONSERVATIVE WITH RESPECT TO T.S. 4.6.1.la. THE HEALTH AND SAFETY I io is i 10F THE PUBLIC WERE NOT AFFECTED. PREVIOUS OCCURRENCES WERE 315/75-048 AND 315/81-0fl9.

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, o lFURTHER INVESTIGATION REVEALED THE 31 DAY VISUAL VERIFICATION OF CPN-1 HAD BEEN i,;,il DELETED IN A REV. WHICH WAS ISSUED 4/7/75. THE BLIND FLANGE USED FOR CONTAINMENT i i, ,,i l INTEGRITY AT CPN-1 HAS BEEN LEAK CHECKED AT THE CONCLUSION OF THE OUTAGES IN WHICH I gi IT WAS USED DURING THE PERIOD THE VISUAL VEP,IFICATION WAS NOT DONE. THE FLANGE WASI m iVISUALLY VERIFIED IN PLACE & A CHANGE SHEET WRITTEN TO INCLUDE CPN-1 IN THE PROCFDllRE.

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SUPPLEMENT TO LER 83-058/03Lc0 27)

FURTHER INVESTIGATION REVEALED THE 31 DAY VISUAL VFRIFICATION OF CPN-1 HAD BEEN DELETED FROM A REVISION ISSUED 4/7/75. THE BLIND FLANGE USED FOR CONTAINMENT INTEGRITY AT CPN-1 HAS BEEN LEAK CHECKED AT THE CONCLUSION OF THE OUTAGES IN WHICH IT WAS USED DURING THE PERIOD THE VISUAL VERIFICATION WAS NOT DONE. THE REASON FOR REMOVING THE VISUAL VERIFICATION OF THE BLIND FLANGE COULD NOT BE DETERMINED. THE FLANGE IS LOCATED INSIDE CONTAINMENT AT THE BOTTOM OF THE FUEL TRANSFER CANAL.

THE FLANGE WAS VISUALLY VERIFIED IN PLACE ON THE SAME DAY THE OMISSION WAS DISCOVERED. VERIFICATION OF THE CPN IN UNIT 2 WAS NOT REQUIRED IN AS MUCH AS BLIND FLANGES INSIDE CONTAINMENT ARE EXEMPTED FROM THE 31 DAY VISUAL VERIFICATION BY THE UNIT 2 TECHNICAL SPECIFICATION. THE VISUAL VERIFICATION FOR THE BLIND FLANGE, IN UNIT 1, HAS BEEN ADDED VIA A CHANGE SHEET TO THE CONTAINMENT PENETRATION SURVEILLANCE PROCEDURE WHICH WILL SATISFY THE 31 i

DAY VISUAL VERIFICIATION REQUIREMENT IN THE FUTURE.

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