05000289/LER-1978-005-01, /01T-0:on 780119,Plant Operation Review Committee Found Containment Integrity Violated by Opening Valves BS-V47A & B During Pump Operability Test.Caused by Error in Operating Procedure OP 1104-5.Procedure to Be Revised

/01T-0:on 780119,Plant Operation Review Committee Found Containment Integrity Violated by Opening Valves BS-V47A & B During Pump Operability Test.Caused by Error in Operating Procedure OP 1104-5.Procedure to Be Revised

ML19261F273
Person / Time
Site:	Crane
Issue date:	02/02/1978
From:	Stevens R METROPOLITAN EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19261F271	List: 05000289/LER-1978-005, Forwards LER 78-005/01T-0 05000289/LER-1978-005-01, /01T-0:on 780119,Plant Operation Review Committee Found Containment Integrity Violated by Opening Valves BS-V47A & B During Pump Operability Test.Caused by Error in Operating Procedure OP 1104-5.Procedure to Be Revised
References
LER-78-005-01T, LER-78-5-1T, NUDOCS 7910250714
Download: ML19261F273 (2)

LER-1978-005, /01T-0:on 780119,Plant Operation Review Committee Found Containment Integrity Violated by Opening Valves BS-V47A & B During Pump Operability Test.Caused by Error in Operating Procedure OP 1104-5.Procedure to Be Revised

Event date:
Report date:
2891978005R01 - NRC Website

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TARRATIVE CF L 0E:ISZE E7E:T! REPORT 73-05/lT At 1030 hours0.0119 days <br />0.286 hours <br />0.0017 weeks <br />3.91915e-4 months <br /> en. January 19., 1976, during a Plant Operatiens Reviev Cec =ittee Meeting, it was recogniced that en certain previcus cecasiens, centai=ent in-tegrity was viclated. During the 3S ?mp Operability Test CP110h-3 and the newly initiated =enthly ISI test,1300-3A, the Building Spray Pa=ps are placed en recirculation to the 3WST. Een the Building Spray ?2=p is recirculating, 3S-Vh7A cr 3 is Opened as a precaution in case any leakage is present through BS-V1A/3. Se leakage vill be drained instead of spraying devn the Reactor Building. Since SS-VkTA/3 are listed as closed in CP1101-3, tne periodic Operation of these valves during the abcve testing violates centai=ent in-tegrity as defined by T.S.1.7, and is reportable per T.S. 6.9.2. A(2).

The Reactor Building Integrity Check List requires that 3S-Vh7A/3 he closed to establish contai=ent integrity. Se operating precedure and ISI test allev cpening of 3S-Vh7A/3 to prevent leakage thrcush 35-71A/3 fren spraying devn the R.3. When the 3uilding Spray ?=p is operating. S e Operating Frecedure and ISI Precedure, therefore, conflict with the contai=ent integrity check list.

Since 3S-V30A/3 prevented any actual " lev path between the Centai=ent 3uilding and the Auxiliary 3uilding when SS-Vh7A/3 vere opened, this incident did not present a threat to the health and safety of the public.

It has been deterrdned that Opening 3S-Vh7A/3 is acceptable, since there is a check valve (3S-V30A/3) inside centainment, provided the precedure contains adequate adrinistrative centrols. Therefore, the TC:T (ncted in the initial telegras) to terrdnate the operation of ES-VhTA/3 is not needed.

The Reactor Building Integrity Checklist per OP1101-3 sh be revised to per=it opening 3S-Vh7A/3 under centrolled test perieds.

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