ML20084L090

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Telecopy Ro:On 740514,standby Liquid Control Release Valve & Nitrogen Purge & Drywell Purge Valves Exceeded Tech Specs Re Psig Operation & Closing Times,Respectively.Valves Will Be Replaced & Details Will Be Reported within 10 Days
ML20084L090
Person / Time
Site: Quad Cities Constellation icon.png
Issue date: 05/15/1974
From: Kalivianakis N
COMMONWEALTH EDISON CO.
To: Oleary J
US ATOMIC ENERGY COMMISSION (AEC)
Shared Package
ML20084L085 List:
References
NUDOCS 8305200234
Download: ML20084L090 (1)


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R4S JOHN F O' LEARY, DI REC TOR, DLR s WW1619p#w C 7 .

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DIRECTORATE OF LICENSING REbOLATION US ATOMIC lN5RGY COMMISSION 9fw; aaY /

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REFERENCE:

QUAD-CITIES NUCLEAR POWER STATION UNIT 1, DOCKET N14 DER 50-254, DPR-29, APPENDIX A, SECTIONS 1 0A.4i 1 0 A. 5, 6 6 8 1. A, 34.A TABLE 3.7 1 ON MAY I 4, 1974, WITH UNIT 1 IN THE ' COLD SHUT DOWN CONDITION DURING THE REFUELING OUTAGE, SURVEILLANC E TESTING REVEALED THE FOLLCAING: 1. SBLC RELEASE VALVE l-1105A 0'ERATED AT 165D PSIG, THUS EXCEEDING TECHNICAL SPECIFICATIONS.

4 THE RELEASE VALVE WILL BE READJUSTED AND TESTED TO BE WITHIN SPEC IF IC ATI ONS . 2.

NITROGEN PURGE VALVE A0-1-16PI-55 REGUIRED 39 SECONDS TO CLOSE, THUS EXCEEDING TECHNICAL SPECIFICATION 3 7. D.1. 3.

DRYWELL PURGE VALVE A0-1-l60.1-21 REGUIRED 13 I/2 i ~ ' SECONDS CLOSING TIME,

' THUS EXCEEDING TECHNICAL SPECIFICATION

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THESE VALVES WILL BE REPAIRED AND RETESTED TO BE WITHIN

' SPEC IF I C AT I ONS . DETAILS OF THESE INCIDENTS WILL BE REPORTED i

_ IN LETTER WITHIN TEN DAYS VERY TRULY YOURS COMMONWEALTH EDISON CO GUAD-CITIES NUCLEAR POWER STATIONN J KALIVI ANAMIS STATION SUPERINTENDENT N4NN s

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