ML18139A931

LER 80-043/03L-0:on 801122,PT-33 Failed to Meet Required Criterion of 0.05 Inches of Water.Caused by Excessive Leakage from 2B Battery Room Door.Battery Room Door Repaired

ML18139A931
Person / Time
Site:	Surry
Issue date:	12/18/1980
From:	Joshua Wilson VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML18139A930	List: ML18139A929 ML18139A931 ML18139A932
References
LER-80-043-03L-03, LER-80-43-3L-3, NUDOCS 8012230403
Download: ML18139A931 (2)

Text

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CIT] ion November 22, 1980, with Unit No. 2 at 100% power, PT-33 failed to meet tbe required

~ acceptance criterial of 0.05 in. of water. This is contrary to T.S.-3-19A and is re-1 ITD !portable per. T.S.-6.6.2.b(2). The emergency ventilation system was proven operable, therefore the health and safety of the public were not affected. I ill] L I- - - - - - - - - - - - - - - - - - - - - - - - - - ~ - - - - - - - - - '

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II§] l The door to 2B battery room had excessive leakage, The battery m.am door was repaired IJJJ fnd PT-33 was performed satisfactorily.

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s 9 10 PREPARER J. L. Wilson cP'HONE (804) 357-3184 68. 69 n

ATTACHMENT 1 SURRY POWER STATION UNIT 2 DOCKET NO: 50-281

,:, REPORT NO: 50-281 .

REPORT NO: 80-043/03L-0 EVENT DATE: 11-22-80

SUBJECT:

EXCESSIVE CONTROL ROOM LEAKAGE

1. EVENT DESCRIPTION One November 22, 1980, with Unit No. 2 at 100% power PT-33 "Control Room Leakage Test" failed to meet the required acceptance criteria of*0.05 inches of water.

This is contrary to Technical Specification 3.19A and is reportable per Tech-nical Specification 3.19A and is reportable per Technical Specification. 6.6.2.b(2).

The PT was being conducted as a special test following maintenance on the control room pressure envelope.

2. PROBABLE CONSEQUENCES AND STATUS OF REDUNDANT EQUIPMENT The requirement of 0.05 inches of water ensures that the integrity of the control room is such that the bottled air system will prevent the leakage of radioactive materials for a period of one hour during an accident. The emergency ventilation system, filtered air, was proven operable as required by Technical Specification 3.19B. Therefore, the health and safety of the public were not affected.

3. CAUSE The door to 2B battery room had excessive leakage.

4 *. IMMEDIATE CORRECTIVE ACTION The emergency ventilation system was proven operable and the source of the leakage was identified.

5. SUBSEQUENT CORRECTIVE ACTIONS The battery room door was repaired and PT-33 was performed satisfactorily.

6.. ACTION TAKEN TO PREVENT RECURRANCE The development cf check list for door seals will identify developing problems.

7. GENERIC IMPLICATIONS NONE.