ML20084D683
| ML20084D683 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 12/04/1970 |
| From: | Hoyt H COMMONWEALTH EDISON CO. |
| To: | Grier B US ATOMIC ENERGY COMMISSION (AEC) |
| Shared Package | |
| ML20084D663 | List: |
| References | |
| 04723, 4723, NUDOCS 8304120198 | |
| Download: ML20084D683 (1) | |
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- THIS FICC CONFiluf CONVERSATION I4)J THIS DATE Fifil H H
s DONCE REGARDING FAICNRE OF N AIN STEAN i
Isol.ATION VALVES ON UNIT #2 TO CLOSE BURING BI' WEEKLY SERFICE AND TESTING l
S iL11TINCEN 0500 A 0500 ON i5M$70. FA[ CURE TO CLOSE
'(ACURRE,D IN THg NANUEL OPERATING N0DE ON INITI AL TESTING SD ZA 2B AND 2 C VALVES NOTEVER ALI. PARTI AC CLOSURE TEST OPERATIONS WERE NORMAC kA VACVE CCOSED. ON THE SECO l
OPERATJON WHERE AS 1D 2B 2C DPERATED PROPERLY ONLY AFTER t
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SEVERAC OPERATIONS 95 RING SYSTElf C00C DOWN AT 0500 TNIS DATE ORDERLY SNUT DOWN WAS INITI ATED AS DATE REQUIRED BY 3 7 D 3 AND SUB CRITICAL ATTAINED 0744 PILOT VALVE CONDITION APPE ARED CLEAN BUT CLOSE INSPECTION REVE ALED A VERY THIN FILM VALVE OPERATION
~lNPROVES OTHERWISE UNTIL CLE AN DRY CLOTH. THOROUGH CLE ANING OF ALL PILOTS To BE ACCOMPCISHED F' OLLOWED DRY RET.lulNG AND TESTING ON HE AD UP AND tlNIT, LOADING AIR SUPPLY. BEING CHECKED. HIGH TEMPERATURE 150 TO 200 F ON I
INBOARD PILOT NOTCH AT TIME OF NALFUNCTION APPE ARS UNRE ALTED AND CAUSE WILC BE INVESTIGATED TINING OF iAA5D NSIV WERE 5 8 AND 5 7 SEC'ONDS Al'.THOUGH OTHER C
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f MEMO ROUTE SLIP See me about this.
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wry 15 A F.C=93 (Rev. Af my14. 1947)
Note anr1 return.
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IMilALS REMARKS 1
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INtilALS REMARKS DATs TO (Name and unit)
IMTIALS REMARKS j
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REMARKS H. D. Thornburg In accordance with PI 1000, item.08 a2u_altacheLis the.
4, CO:III gM F #'7y original and three copies of a WX_reportgeportinglhe failure of MSIV's of Dresden Unit 2 to close, i
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