ML17317B185

LER 79-019/03L-0 on 790413:while Performing Hydraulic Snubber Surveillance Insp,Snubbers GBD-S573 & GBD-S574 Found W/Drained Reserviors.Caused by Loose Pipe Unions Between Snubbers & Remote Reservoirs.Snubbers Replaced

ML17317B185
Person / Time
Site:	Cook
Issue date:	05/09/1979
From:	Michael Brown INDIANA MICHIGAN POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17317B184	List: ML17317B182 ML17317B185 ML17317B186 ML17317B187
References
LER-79-019-03L, LER-79-19-3L, NUDOCS 7905150430
Download: ML17317B185 (2)

Text

NRC FORM 366 U. S. NUCLEAR REGULATORY COMMISSION (7-77)

ICENSEE EVENT REPORT CONTROL BLOCK:

I 6 01 (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

[oD1] M I D D C I Q2 0 0 0 0 0 0 0 0 0 Q24 I I I I OR~Os 14 15 LICENSE NUMBER 25 26 LICENSE TYPE 30 57 CAT 58 7 8 LICENSEE CODE CON'T

~o Eo'RO,CHLOE 0 5 0 0 0 3 I 5 68 QTO 69 4 I EVENT DATE 3 7 9 74 Qs 75 REPORT DATE 80 Q

7 8 60 61 DOCKET NUMBER EVENT DESCRIPTION AND PROBABLE CONSEQUENCES ~10 WHILE PERFORMING HYDRAULIC SNUBBER %RVEILLANCE INSPECTION, SNUBBERS GBD-S573 FOUND WITH DRAINED RESERVOIRS. THIS CONSTITUTED A SNUBBER AND '.GBD-S574 i WERE INSPECTION FAILURE PER TECH. SPEC. 4.7.8.1.1, ALTHOUGH SNUBBERS PASSED FUNC-TIONAL TESTING CRITERIA UPON REMOVAL. PUBLIC HEALTH AND SAFETY WERE NOT 8

JEOPARDIZED. NO PREVIOUS EVENTS IDENTICAL TO THIS HAVE OCCURRED.

~os 80 7 8 9 SYSTEM CAUSE CAUSE COMP VALVE CODE CODE "'UBCODE COMPONENT CODE 'UBCODE SUBCODE Ql 012 LJO18 s U P 0 R T 64 LJGE L'JOE 20 7 8 9 10 11 12 13 18 19 SEQUENTIAL OCCURRENCE REPORT REVISION 011 LER)RP REPORT ACTION FUTURE EVENT YEAR

~79 21 22 EFFECT

~23 SHUTDOWN 24 REPORT NO.

~01' 26

~W 27 ATTACHMENT

~03 28 CODE 29 NPRDQ TYPE

~L 30 PRIME COMP.

31 NO.

32 COMPONENT TAKEN ACTION ON PLANT METHOD HOURS Q22 SUBMITTED FORM SUB. SUPPLIER MANUFACTURER 33 Ols ~HO19 34

'2029 35 F02 36 37 0 0 0 0 40 4'I N Q22 ~NQ24 42

~>OEE 43 44 I 2 0 7 O28 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS Q27 THE DRAINED RESERVOIRS WERE CAUSED BY LOOSE PIPE INIONS BEIWEEN TME SNUBBERS AND THEIR REMOTE RESERVOIRS. THE UNIONS ARE THOUGHT TQ HAVE BEEN LOOSENED BY CONTRACTOR PERSONNEL FOLLOWING A PREVIOUS INSPECTION. THE SNUBBERS WERE TESTED AND FOUND TQ BE OPERABLE. HOWEVERP THEY WERE REPLACED WITH NEWER MODELS.

THE CONSTRUCTICN SUPERVISOR WAS NOTIFIED OF THIS EVENT.

80 7

8 8 9 FACILITY STATUS

~H Q28 ~00

% POWER 0 Q29 OTHER STATUS NA

~

~3P METHOD OF DISCOVERY

~BQ31 DISCOVERY DESCRIPTION Q32 SURVE ILLANCE INSPECTION 7 8 9 10 12 13 44 45 46 80 ACTIVITY CONTENT RELEASED OF RELEASE Z

AMOUNT OF ACTIVITYQ36 NA NA LOCATION OF RELEASE Q Q33 Q34 7 8 9 10 11 44 45 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION

~lT ~00 8 o OET ~OEs 13 80 7 9 11 12 PERSONNEL INJURIES NUMBER OESCRIPTIONQ41 8 ~OO O Q4o NA 80 7 8 9 11 12 LOSS OF OR DAMAGE TO FACILITY TYPE DESCRIPTION Q43 Z Q4. NA 7 8 9 10 80 o

ISSUED PUBLICITY L~JQ44 DESCRIPTION ~ NRC USF. ONLY 7 8 9 10 68 69 80 ~ 48 MICHAEL S. BROWN (6 16) 465 590 1 p EXT 398 NAME OF PREPARER

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