ML17317B215

LER 79-017/03L-0 on 790423:while Performing STP 022, Essential Svc water-142, Essential Svc Valve to 2 Cd Diesel Did Not Seat Properly.Caused by Excessive Wear of Split Disc Hinge Points.Stainless Steel Discs Were Substituted

ML17317B215
Person / Time
Site:	Cook
Issue date:	05/16/1979
From:	Michael Brown INDIANA MICHIGAN POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17317B214	List: ML17317B213 ML17317B215
References
LER-79-017-03L-01, LER-79-17-3L-1, NUDOCS 7905230330
Download: ML17317B215 (2)

Text

IIIRCs FOSHVI 366 U. S. NUCLEAR REGULATORY COMMISSION

~(7.QF CENSEE EVENT REPORT CONT7lOL BLOCK: O1 (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

I 6 7 8 9 M I D UCENSEE CODE C C 2O2 14 15 P P 0 0 0 LICENSE NUMBER 0 0 0 0 25 Qo 26 4 1 1 1 LICENSE TYPE 30 1 Qs~ 57 CAT 58 Qg 7

CON'T

~01 8

~LE 60 61 0 5 0 0 0 DOCKET NUMBER 3 1 6 68 Q7 69 0 4 2 EVENT DATE 3 7 9 Qg 74 0

75 5 1 6 REPORT DATE 7 ~

80 0

EVENT DESCRIPTION AND PROBABLE CONSEQUENCES O10 WHILE PERFORMING STP.022, ESW-142, ESSENTIAL SERVICE WATER CHECK VALVE TO 2CD DIESEL DID NOT SEAT PROPERLY. REPAIRS PLACED THE 2CD DIESEL INOPERABLE

~OS IS REPORTABLE PER TECH. SPEC. 3. 8. 1. 1. COMPANION DIESEL REMAINED

~04 WHICH

~OB OPERABLE DURING REPAIRS. PUBLIC HEALTH AND SAFETY WERE NOT JEOPARDIZED

~OB BY THIS EVENT. SIMILAR OCCURRENCES: 79-006/03L-0 AND 79-010/03X-1

~O7 DOCKET NO. 05000315.

~OB 80 7 8 9 SYSTEM CAUSE CAUSE COMP. VALVE CODE CODE SUBCODE COMPONENT CODE SUBCODE SUBCODE

~WA Q77 6 Q72 ~F Q73 V A L 77 X Q>4 ~~ 07s ~+

20 Q7g 7 8 9 10 11 12 13 18 19 SEQUENTIAL OCCURRENCE REPORT R EV I 5 I ON CODE TYPE NO.

077 LERIRO sssos7 EVENT YEAR

[J~

21 9

22 Q23

~ol 24 REPORT NO.

7 26 27 28 29 30 31 32 ACTION FUTURE EFFECT SHUTDOWN ATTACHMENT NPRDX PRIME COMP. COMPONENT TAKEN ACTION ON PLANT METHOD HOURS O22 SUBMITTED FORM SUB. SUPPLIER MANUFACTURER

~A07s~XPs ~ZPoo ~ZQ>> O O O O ~NQ>> ~NP4 ~Apso C 1 0 2 Ps 33 34 35 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS 027 0 CAUSE OF EVENT WAS EXCESSIVE WEAR OF THE SPLIT DISC HINGE POINTS. THE 1

CAST STEEL DISCS WERE REPLACED WITH STAINLESS STEEL DISCS TO ELIMINATE ABNORMAL WEAR. ESW SUPPLY CHECK VALVES WILL BE REINSPECTED DURING 18 3

MONTH DIESEL OVERHAUL.

~14 80 7 8 9 FACILITY STATUS

~10 9! POWER OTHER STATUS ~

~3o METHOD OF DISCOVERY SURVEILLANCE TEST DISCOVERY DESCRIPTION CO 5 8 9 6 02s 10 0 029 12 13 44 L~JO>>

45 46 80 ACTIVITY CONTENT RELEASED OF RELEASE AMDJJNT OF ACTIVITYO36 LOCATION OF RELEASE O

~s 7 8

~z 9

po. ~Zpo.

10 NA 44 45 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION O39 7 ~00 0 Qso 2 Qss NA 80 7 8 9 11 12 13 PERSONNEL INJURIES 770&a3 II 3BO 7 8 9 11 12 80 LOSS OF OR DAMAGE TO FACILITY TYPE DESCRIPTION g Z 047 NA 7 8 9 10 80 PUBLICITY NRC USE ONLY DESCRIPTION KEG 8

Me ISSUED 9 10 NA 68 69 80 ~ o M. S. BROWN PHDNE 616 46 5901, EXT ~ 398 NAME OF PREPARER

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