ML17331A411

LER 80-015/03L-0:on 800703,in Mode 6,train B Centrifugal Charging Pump Failed While Running Due to Broken Pump Shaft. Cause Unknown.Pump Rebuilt Using New Design Shaft

ML17331A411
Person / Time
Site:	Cook
Issue date:	07/29/1980
From:	Lease R INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17326A704	List: ML17326A703 ML17331A411
References
LER-80-015-03L-01, LER-80-15-3L-1, NUDOCS 8008040158
Download: ML17331A411 (4)

Text

NRC FORM 366 U. S. NUCLEAR REGULATORY COMMISSION

$ .77) LICENSEE EVENT REPORT CONTROL BI OCK: {PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

[OO~]

7 8 9 rnI D C LICENSEE CODE 14 15 6

Qi LICENSE NUMBER O OQs~

25 26 LICENSE TYPE 1

30 Q4~Qs 57 CAT 68 CON'T

~01 ~LOB 0 0 0 0 3 1 5Q7 68 69 0 0 EVENT DATE 3 B OQso 74 75 7 2 9 REPORT DATE 8 0Q 80 7 8 60 61 DOCKET NUMBER EVENT DESCRIPTION AND PROBABLE CONSEQUENCES Q10 WHILE IN MODE 6 THE TRAIN 'B'ENTRIFUGAL CHARGING PUMP FAI,'LED WHILE RUNNING DUE TO A BROKEN PUMP 'SHAFT. THE TRAIN 'A'HARGING PUMP WAS INOPERABLE PER T.S. 3.1.2.3 4 SINCE THE TRAIN 'A'IESEL WAS OUT OF SERVICE. THE TRAIN 'A'HARGING PUMP WAS

~OB PLACED IN SERVICE. NO CORE ALTERATIONS WERE PERFORMED WHILE THE TRAIN 'A'IESEL

~OB WAS OUT OF SERVICE. THERE HAVE BEEN TWO'REVIOUS OCCURRENCES OF SHAFT FAILURE.

~O7 THIS EVENT HAD NO EFFECT ON PUBLIC HEALTH AND SAFETY.

~OS 80 7 8 SYSTEM CAUSE CAUSE COMP VALVE CODE CODE SUBCODE COMPONENT CODE SUBCODE 'UBCODE

~OB 7 8 9

~pg 10 Q>>

11 5 Q14 ~OQs 12 13 18 Q14 ~B 19 Q16 ~Z 20 Q16 SEQUENTIAL OCCURRENCE REPORT REVISION Q

LFRiRP sssos1 ACTION FUTURE EVENT YEAR

~QQ 22 EFFECT

+

23 SHUTDOWN

~01 24 REPORT NO.

5 26

+H 27

~03 28 ATI'ACHMENT CODE 29 NPRDP

~L'1 30 TYPE PRIME COMP.

31 UO COMPONENT TAKEN ACTION ON PLANT METHOD HOURS Q22 SUBMITTED FORM SUB. SUPPLIER MANUFACTURER

~AQis ~ZO)B ~ZO2O L~JO21 O O O ~Y Q23 ~YQ24 ~NQ26 O26 33 34 35 36 37 40 41 42 43 44 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS 027 MODE 6 REQUIRES ONE DIESEL AND ONE CHARGING PUMP IN THE SAME SAFETY TRAIN. THE

'A'7 TRAIN DIESEL WAS OUT OF SERVICE FOR 18-MONTH SURVEILLANCE IlHEN THE 'B CENTRIFUGAL CHARGING PUMP EXPERIENCED SHAFT FAILURE, LEAVING THE 'Ai TRAIN CENTRIFU-GAL CHARGING PUMP AS THE OPERABLE PUMP EXCEPT FOR EMERGENCY DIESEL POWER.

THE 'A'RAIN DIESEL SURVEILLANCE WAS COMPLETED AND THE DIESEL DECLARED OPERABLE

~Q 80 METHOD OF DISCOVERY DISCOVERY DESCRIPTION Q32 CO MQ ~AQ31 45 46 N A 80 ACTIVITY CONTENT RELEASED OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE s ~Z Qss Z N/A N A Q44 7 8 9 10 44 45 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION QSB 1 ~00 0 Q>> Z Qss 12 13 N A 80 7 8 9 11 PERSONNEL INJURIES NUMBER DESCRIPTIONO41 s ~OO O Q44 N A 80 7 8 9 11 12 I.OSS OF OR DAMAGE TO FACILITY Q43 TYPE z

DESCRIPTION N A 800KO "fOl5$ ,

O4.

8 9 10 80 7

PUBLICITY NRC USE ONLY 44 KDO L~JO 10 N/A 68 69 80 ~ 4s 7 8 9 NAME OF PREPARER R. S. Lease PHDNE. 616-465 5901 EXT 3L

0 '4 ATTACHMENT TO LER ¹80-015 03L-0

.SUPPLEMENT TO CAUSE DESCRIPTION PRIOR TO ANY FURTHER CORE ALTERATIONS. THE 'B'RAIN CHARGING PUMP HAS RE-BUILT USING THE "NEW" DESIGN SHAFT. THE CAUSE OF SHAFT FAILURE IS UNKNOWN.

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