ML20084V005

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Telecopy Ro:On 720307,while Conducting Monthly Surveillance Test,Wiring Error Discovered in LPCI Logic to Spray Containment Under Accident Conditions.Wiring Corrected
ML20084V005
Person / Time
Site: Dresden Constellation icon.png
Issue date: 03/13/1972
From: Worden W
COMMONWEALTH EDISON CO.
To: Grier B
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20084U996 List:
References
NUDOCS 8306290699
Download: ML20084V005 (1)


Text

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Telegram mestem union

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M R B0Y,CE GR I E R D i RE CTOR A.E.C.

Z CZ C 1 PD NL TDJL COMPLi ANCE RE GI ON 3r.

MORRIS I LL 13y=

799 ROOSEVELT RD GLEN ELLYN 'lLL 601373 2

FDPR 2 9 DRE SDEN NUCLE AR POVIER STATI ON UNI T 35=

Tlil s WILL CONFI RM CONVERSATI ON AT 16iOO liRS. Tlf l'S DATE WI Tli 11.

v= DANCE 0F RE GI ON 3 C0'JPLi' ANCE RE GARD.l N G A Wl R I N G ERROR UNCOVERED.=l N Tile LPCI LOGI C TO SPRAY TliE CONTAl'NMENT UNDER ACCI DENT CONDI Tl ONS.5=TliE WI RING ERROR WAS Di SCOVERED AT 15iOO liRS. ON 3/7/72 V!!ilLE CONDUCTI N Cr.=A MONTiiLY SURVE I LL ANCE TE ST. TliE ERROR WOULD NOT li AVE BEEN NOTEDs=

EXCEPT Tli AT AT TliE T.lME OF TliE SURVEILLANCE A LPCI SYSTEM s-WU IN1 (R 5 09)

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LOVI-FLOV! SWI TCli V!AS ALSO OUT OF Call'BRATION. Till S SET UP A CONDIII ONv=DI FFE RENT Tl1 AT Tli AT NORM ALLY FOUND DUR'l N G TliE SURVE I LL ANCE TESTov=TliE Vil Rl'N G ERROR WAS CORRECTE D ON 3 /8/72

Tlil S INCL DENT YlAS NOT REPORTED S0ONER o,e BECAUSE WHEN TliE STATI ONv=l N I T.I' ALLY. RE VI EWE D TiiE PROBLEM

$l l T Yl AS FELT TO BE A 30-DAY NOTI FI CATI ONs=BEC AUSE TliE C

SUB SYSTEM VlAS ALVIAYS OPERABLEo TliE EFFE CTv=0F ".

h LPCI

{l TH I S Vil RI N G E RRORWAS ONLY. TO PR0lil.B I T PE RM I SSI VE T0 v=

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