ML20085E440

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LER ER-76-043:on 761202,small Leak Observed in Charging Pump Suction Header Near B Charging Pump.Caused by Type of Tee (Field Fabricated Type) & by Pipe Vibration at Tee Location
ML20085E440
Person / Time
Site: Palisades Entergy icon.png
Issue date: 12/30/1976
From: Bixer D
CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To: James Keppler
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
LER-ER-76-043, LER-ER-76-43, NUDOCS 8308120011
Download: ML20085E440 (2)


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[ENSEE EVENT REPORT Q

Palisadas CONTROL BLOCK:l l

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7 8 57 58 59 80 61 88 SS 74 75 80 EVENT DESCRIPTION gg l During a routine inspection of the plant a small leak was observed in the charging pu=pl 7 89 80 Q l suction header near the "B" charging pump. The leakage was estimated to be 10 to 15 l

7 89 80 SC l cc/ min. The initial corrective action utilized a clame tyve seal over the leak. A l

7 89 80 SE l review of the pipe vibration, possible tee replacement (with a standard tyre) and l

7 89 80 3E l adecuacy of clamn tvte fixes (as termanent) vill be conducted (Contd on Line 18) l E

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7 89 10 11 12 17 43 44 47 48 CAUSE DESCRIPTION Q l The apparent cause of the problem is related to both the type of tee (field l

7 89 80 M l fabricated type) and the pipe vibration occurring at the tee's location.

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10 12 13 44 45 48 80 E o El I

I AMot:NT or AcTuty LocATCN cP RELEASE Liu LzJ NA Ni l

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PERSONNEL EXPOSURES NUMSEA TvPE DESCMmoN EE l0l0l0l dl NA l

7 89 11 12 13 80 PERSONNEL INJURIES NUMSER oESCMrfloN QC l0 l O! 0l l

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7 89 11 12 80 PROBABLE CCNSEQUENCES.

DE I None.

Leakage was not sufficient to affect operation..;

l 7 89 80 LOSS OR DAMAGE TO FACllJTY Type DEsca Tion 32 W l

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7 89 10 80 Pu m 8308120011 761230 PDR ADOCK 05000255

@ l None.

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7 89 80 ADDITIONAL FACTORS i

, M l (Contd Frem Line 06) to determine final resolution. Records of final corrective l

7 89 80 Q l action vill be available at the plant.

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wenig.n av.nu., s cw.on. Michig.n 49201 e Ar.. Cod.517788-0550 December 30, 1976 G

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Mr James G Keppler g

Office of Inspection & Enforcement 4

&NN Region III 4

.4-g US Nuclear Regulatory Co=:nission h

799 Roosevelt Road I

Glen Ellyn, IL 60137 DOCKET 50-255, LICENSE DPR PALISADES PLANT - ER-76 LEAK IN CHARGING PUIE SUCTION LINE Attached is a reportable occurrence which relates to the Palisades Plant.

This event is considered to be abnormal degradation of a system designed to

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contain radioactive material. No release to the environment occurred as a result of this event.

David A Bixel (Signed)

David A Bixel Assistant Nuclear Licensing Administrator O

115

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