05000255/LER-1979-013-01, /01X-1 on 790327:level in T-82C Safety Injection Tank Decreased While Draining D Tank to Permit Increase in Boron Concentration.Caused by Seal Leakage.Cv 3004 Drain Valve Will Be Repaired During Next Refueling Outage

/01X-1 on 790327:level in T-82C Safety Injection Tank Decreased While Draining D Tank to Permit Increase in Boron Concentration.Caused by Seal Leakage.Cv 3004 Drain Valve Will Be Repaired During Next Refueling Outage

ML18043A683
Person / Time
Site:	Palisades
Issue date:	05/15/1979
From:	CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML18043A682	List: 05000255/LER-1979-013, Forwards LER 79-013/01X-1 05000255/LER-1979-013-01, /01X-1 on 790327:level in T-82C Safety Injection Tank Decreased While Draining D Tank to Permit Increase in Boron Concentration.Caused by Seal Leakage.Cv 3004 Drain Valve Will Be Repaired During Next Refueling Outage
References
LER-79-013-01X, LER-79-13-1X, NUDOCS 7905220343
Download: ML18043A683 (1)

LER-1979-013, /01X-1 on 790327:level in T-82C Safety Injection Tank Decreased While Draining D Tank to Permit Increase in Boron Concentration.Caused by Seal Leakage.Cv 3004 Drain Valve Will Be Repaired During Next Refueling Outage

Event date:
Report date:
2551979013R01 - NRC Website

text

UPDATE REPORT*- PREVIOUS REPORT DATE 04-09-79 PALISADES NRC FORM 366 (7.77)

U.S. NUCLEAR REGULATORY COMMISSION LICENSEE EVENT REPORT CONTROL BLOCK: j 10 (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) 1 6

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LICENSEE CODE 14

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~:~~~ LLJ©I 01 510 I 010 121 515 i(Z)IO !3 12 1717 19 KV! Ol 511 15 I 71 91@

60 61 DOCKET NUMBER Ell 69 EVENT DA7E 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES@

I While draining the_D safety injection tank (T-82D) in order to permit l1JI) I increasing its boron concentration, the level in T-82C also decreased

. I CQ:ITI I below the limit of TS 3.3.1.b.

This condition is reportable per TS [QJ]J I 6.9.2.a(2).

The level.in T-82C was restored promptly, such that no

((II] significant safety hazard existed.

GTIJ

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CAUSE

CAUSE COMP.

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9 1Q 11 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT r.::-..

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CODE TYPE

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10 11 I 0_J l.::::J NUMBER 21 22 23 24 26 27 28 29 30 31 REVISION*

NO.

12-J 32 COMPONENT 80 TAKEN ACTION ON PLANT METHOD HOURS SUBMITTED FORM ~UB.

SUPPLIER ACTION FUTURE EFFECT SHUTDOWN

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33 34 35 36 37 40 41 42 43 IM 11 12 L~J CAUSE DESCRIPTION AND CORRECTIVE ACTIONS @

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47 ILeekage ~rom T-82C was through its fill and drain valve CV 3004 which t

1 1 - 1*age The drai* ni* ng of T-82C occurred after CV 3069 OJJJ jhas apparen sea ec::,.r,..

(fill and drain line isolation valve) was opened to drain T-82D (ref.

[IIIl '--~---~~~~~~~~~~~~~~~..;_~~~~..,.....~~..;_..~~~~~~~~~~---J o::IIJ I dwg M-203).

CV 3004 will be repaired during the next refueling outage.

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46 N/A LOCATION OF REUASE so 45 80 PERSONNEL EXPOSURES

,Q NUMBER

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