ML18352A324

Licensee Event Report ER-76-03 - CCW P52-C Inboard Bearing Failed While Preventative Maintenance Was Being Performed on CCW Pump P52-A

ML18352A324
Person / Time
Site:	Palisades
Issue date:	08/19/1976
From:	Sewell R Consumers Power Co
To:	James Keppler NRC/RGN-III
References
LER 1976-003-00
Download: ML18352A324 (2)

Text

.:-> __ : ~

..  ! '(  :~ ...

consumers

• Power company General Offices: 212 West Michigan Avenue, Jackson, Mic 1

August 19, 1976 Mr James G. Keppler Office of Inspection and Enforcement Region III US Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137 DOCKET 50-255, LICENSE DPR PALISADES PLANT

• Transmitted attached is a Licensee Event Report for the Palisades Plant .

AUG 2 3 1976

... LICENSEE EVENT REPOR~

CONTROL BLOCK: I I I I I I [PLEASE PRINT ALL llliEQUIRIED INFORMATIDN]

1 6 LICENSEE LICENSE EVENT NAME LICENSE NUMBER TYPE TYPE

@12:1 IMII IPIAILl1 I lolol-lo lolololol-lol oj 15 . 25 l411l1l1l1I Io I3I 7 8 9 14 26 30 31 32 RE.fviT ~~~~~i DOCKl;T NUMBER EVENT DATE REPORT DATE 7

@IT] CON'T 8

I

.5....7-----5~8 I l1J 59 l1J lol5lol-lol2l5lsl lol1l2lol1l6I lolsl1l2l1l6I 60 61 68 69 74 75 80 EVENT DESCRIPTION lol2l I CCW pump P52-C inboard bearing failed while preventative maintenance was being I 7 8 9 BO lolsf I performed on CCW pump P52..,.A. P52-C was tripped and inspected. Diesel generator I 7 B 9 BO 7

lol41 I 1-2 was test started to verify operability.

B 9 P52-A was returned to service later BO I

lol51 I the same day. The shaft was metalized to insure proper bearing interference *fit. I 7 B 9 80 jojsl f The bearing replaced :and the need for changes in maintenance procedure (See 18) I 7 B 9 PRIME 80 SYSTEM CAUSE COMPONENT COMPONENT COOE COOE COMPONENT CODE SUPPLIER MANUFACTURER VIOLATllJN 7

@EllclJI W B 9 10 11 IPlulMIPlxlxl 12 17 L!J 43 jG 44 I1 I 9 15 I 47 w4B CAUSE DESCRIPTION lolBl I Probable cause was either not performing a hot end alignment on pump after re~air I 7 B9 80 lolsl I or because of bearing slippage on shaft. I 7 B9 BO

~

7 B 9 METHOD OF BO FACILITY w

STATUS  % POWER OTHER STATUS DISCOVERY DISCOVERY DESCRIPTION EE]

7 B 9 w 10 Io I 2 I o12I 13..___NA_ _____.!44 45

!Observation by Maintenance Personnell 46 BO FORM OF ACTIVITY CONTENT RELEASED OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE rn w 7 B 9 WI 10 11 NA 44 45 NA BO PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION ITEiB 9 Io Io I 01 ~ NA 7 11 12 13 BO PERsnNNEL 1NJUR1Es NUMBER DESCRIPTION

~ 1010101 NA 7 B 9 11 12 BO PROBABLE CONSEQUENCES

~ None 7 B 9 BO LOSS OR DAMAGE TO FACILITY TYPE DESCRIPTION 7

filfil.8 9w 10 NA BO PUBLICITY EE] I Copy of this report being distributed to Michigan news media.

7 B 9 BO ADDITIONAL FACTORS

~ I is being reviewed. P52-B pump was a.yailable, (76-03) I 7 B 9 BO

[!Jfil 7 B 9 BO