ML17238A731
| ML17238A731 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 05/08/1972 |
| From: | Worden W Commonwealth Edison Co |
| To: | Grier B US Atomic Energy Commission (AEC) |
| References | |
| Download: ML17238A731 (3) | |
Text
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352P EST MAY 8 72 DEB623 SSE249 DE CCG094 (CH 129CC601094lPD WU JOL 0126p EDT05/08/7 ~ *1f~ VJ V) \\ 0{ 11 l ~~) ,. \\. ~. ~~1 <> zczc 1 NL PD MOP.RI S I LL MAY 4 415p CDT MR BOUCE GRIER, DIRECTOR REGION 3 COMPLIANCE BT US ATOMIC ENEPGY COMM 799 ROOSEVEL 1' RD GLEN ELLYN ILL 60137 (cCJ/3'1 D P R 25 DRESDEN NUCLEAR POWER STATION UNIT 3: ~ -~ */~I - BECAUSE OF A HIGH WATER LDIEL CONDITION. L.. ,_ r; AN ATTEMPT WAS MADE TO PLACE THE ISOLATION CONDENSOR H~ SERVICE @i BUT*VALVE 3-1301-3 WOULD NOT OPEN* AN OPERATOR HAD*~*ro GO TO IBE VALVE \\. SF-1201 (RS-69) ~..
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-*:;;..,.* V'_'~ _,. AND MANUALLY CRAKE THE VALVE OFF ITS SEAT* ONCE TI-IE VALVE WAS OPENED I TS BREAKER RE-SET At'-!D IT FUNCTIONED PROPERLY. WHILE THE OPEP.ATOR WAS WOP.KING ON PLACING THE ISTLATION CONDENSOR IN SERVICE PEA~.TOP. PRESSURE INCREASED TO P.PPROXIMATELY 1100 PSIG AT.TI-{IS PRESSURE 3A ELECTPOMATIC VALVE OPENS AUTOMATICALLY* . I ~ WHEN THE ELECTROMATIC VALVE OPEMED THE DRYWELL PRESSURE It-:t*1EDIATELY {_ INCREASED TO 2.5 PSIG. AFTER PEAKING AT 2.5 PSIG TIIE DRY\\*JELL PRESSURE RETURNED TO !'-:OP.MAL. ( A COMPLETE DRYWELL INSPECTION WILL BE MADE WHEN ENTRY IS POSSIBLE TO DETERMINE THE CAUSE OF THE PRESS URI 2 AT ION AND TO DETERMINE IF ( -.. A~fY EQUIPMENT HAS BEE~l DAMAGED AS A RESULT OF THIS PRESSURIZATION IN ADDITION *A COMPLETE CHECK-OUT WILL BE MADE ON VALVE 3-1301-3. ( si:-12q)pR~!E ISOLATION CONDENSOP.. TO DETERMINE WHY IT FAILED TO OPEN . I') I
( ( W P WORDEN PLANT SUPERINTENDENT DRESDEN NUCLEAR POWER STATION D P R 25 3 15:00 3-1301-3 0901 3-1301-3 1100 PSIG 3A 2o5 2.5 3-1301-3 NNNN( 0133P EDT) \\._, SF-1201 (RS-69) ~""*-******.;..'-.-*.. ~-........ *- ~... ---..
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