ML20084C399

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Telecopy Message of Ro:On 711116,HPCI Failed to Start.Caused by Loose Limit Switch on Control Valve.Switch Adjusting Screw Tightened & Double Lock Nut Added to Protect Against Further Loosening
ML20084C399
Person / Time
Site: Dresden Constellation icon.png
Issue date: 11/16/1971
From: Hoyt H
COMMONWEALTH EDISON CO.
To: Grier B
US ATOMIC ENERGY COMMISSION (AEC)
Shared Package
ML20084C387 List:
References
105011, NUDOCS 8304080022
Download: ML20084C399 (2)


Text

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BOYCE GRIER DIRECTOR DIVN CCUPLI ANCE REGION 3=

US ATOM IC EtJERGY 799 ROOSEVELT RD GLEN ELLYtl 'lLL=

SUBJECT DPR19 DRESDEN NUCLEAR P017ER STATIONUNI T Ti70:=

Tills VilLL CONFIRU CONVERSATION 16001100RS Tlil S DATE j

171T!! 11 DANCE REGARDIflG FAILURE Of' Ti1E IIPCI TO START AS l

REQUIRED DURI NG ROUTINE SURVE ILL ANCE TESTI'NG AT 2200 ON 11/16/71. TiiE PROBLEU YlAS FOUND TO BE A LOOSE L'IMI'T Si? l TCli ON TiiE CONTROL VALVEn TiiE Sr/l TCl1 ADJ USTI NG SCRE17 l

\\7AS Tl G11TENED AND A DOUBLE LOCK NUT 17AS ADDED TO PROTECT l

AGAI NST FURTliER LOOSENI NGe DURI NG TliE PER.! OD PRl'OR TO SATI SFACTORY DEMONSTR ATl ON OF liPCI OP E R AB i L I TY AT 0015 j

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THI S DATE TliE liPCi 17AS DECL ARED 'l NOPER ABLE AND j

SURVElLLANCE INITI ATED AS REQUIRED BY SECT 10N 3c5C 0F l

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re, ene.,m.es T,) (Name sad west) teettlALS REMA9FS J. G. Keppler CO:llQ TWX INCIDENT REPORI - DRESDEN 2 (50-237)

DATE f O (Name and unit) put>ALS aguanas oars TO (,4ame and unft) a rtALs REMAnns DATE F ROM (Name and wa81)

AtMAAKS G. Florelli gk il CO:III M

In acc9rdance with PI 10D0, attached is the originni TWX.repsrt_ dated _Hovember 18., 1971. reporting e

cios sea oAri inoperable _11ECI.

858-2660 11-19-71 1

1 UM QYMA SIM FOR ADNTNyeAL MMARKS 6PO tesa c-see-ene W

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