05000311/LER-1981-041-03, /03L-0:on 810612,leakage of 13 Gpm Into Pressurizer Relief Tank Identified.Caused by RHR Suction Piping Relief Valve (2RH3) Actuating at Less than Design Lift Setting & Failing to Reseat.Lift Setting Readjusted

/03L-0:on 810612,leakage of 13 Gpm Into Pressurizer Relief Tank Identified.Caused by RHR Suction Piping Relief Valve (2RH3) Actuating at Less than Design Lift Setting & Failing to Reseat.Lift Setting Readjusted

ML20009G125
Person / Time
Site:	Salem
Issue date:	07/09/1981
From:	Espey J Public Service Enterprise Group
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20009G113	List: 05000311/LER-1981-041, Forwards LER 81-041/03L-0.Detailed Event Analysis Encl 05000311/LER-1981-041-03, /03L-0:on 810612,leakage of 13 Gpm Into Pressurizer Relief Tank Identified.Caused by RHR Suction Piping Relief Valve (2RH3) Actuating at Less than Design Lift Setting & Failing to Reseat.Lift Setting Readjusted
References
LER-81-041-03L-01, LER-81-41-3L-1, NUDOCS 8108030352
Download: ML20009G125 (1)

LER-1981-041, /03L-0:on 810612,leakage of 13 Gpm Into Pressurizer Relief Tank Identified.Caused by RHR Suction Piping Relief Valve (2RH3) Actuating at Less than Design Lift Setting & Failing to Reseat.Lift Setting Readjusted

Event date:
Report date:
3111981041R03 - NRC Website

text

NRC FORM 366 U. S. NUCLE A3 [E2ULATCY COMMISSloN p.77) gx

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60 61 DOCKET NUM8ER 68 69 EVENT DATE 7.

75 REPORT D ATE 80 EVENT DESCRIPTION AND PROB ABL'E CONSEQUENCES O'o l o 12 l l At 0355 hours0.00411 days <br />0.0986 hours <br />5.869709e-4 weeks <br />1.350775e-4 months <br />, on June 12, 1981, leakage into the Pressurizer Relief Tank was l

identified at 13 gpt.

The source leakage was identified as the Residual lleat l

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,g,,, l Removal s action piping relief valve (2RII3 ) which had actuated at 0105 hours0.00122 days <br />0.0292 hours <br />1.736111e-4 weeks <br />3.99525e-5 months <br /> and l

Io Isl l failed to fully rescat.

Action Statement 3.4.7.2.b was entered at 0355 hours0.00411 days <br />0.0986 hours <br />5.869709e-4 weeks <br />1.350775e-4 months <br />. Thisl l o is l l occurrence constituted operation in a degraded mode in accordance with Technical l

gy l Specifi cation 6.9.1.9.b.

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7 8 9 80 SYSTEM

CAUSE

CAUSE COVP.

VALVE CODE COCE SU8 CODE COMPONENT CODE SU8C SU8 CODE l C l F l h (E j h (B_j h l V l A l L l V l E l X lh ]CDEh yh l0l9l 7

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(_NJ lL lg l C l 7 l1 l 0 lg 3J 34 35 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h l i j o g l The Residual lleat Removal suction piping relief valve (2RH3) & lated at less than l

lits design lift setti.g and failed to fully rescat. The lift setting was re-adjustedi

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,,,7i [and the relief valve was lift set checked and returned to service. The Action l

l3 l 3 g l Statement was terminated at 0549 hours0.00635 days <br />0.153 hours <br />9.077381e-4 weeks <br />2.088945e-4 months <br />, June 12, 1981, when the Unit entered mode 5. l l

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