ML20084S564
| ML20084S564 | |
| Person / Time | |
|---|---|
| Site: | Quad Cities  |
| Issue date: | 10/04/1976 |
| From: | Gerner L, Kalivianakis N COMMONWEALTH EDISON CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| NJK-76-368, RO-50-254-76-25, NUDOCS 8306170112 | |
| Download: ML20084S564 (2) | |
Text
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7-C :lth Edison ua acle r Power Station m. , ,,
Cordova. Ilknois 61242 Telephone 300/654-2241 mFUE COF
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NJ K-76-368 / ^
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October 4, 1976 g .1, c: ~, .
%: , . L .e., s aN J. Keppler, Regional Director s Office of Inspection and Enforcement N.
Region ill U. S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Illinois 60137 References 1) quad-Cities Nuclear Power Station Docket No. 50-254, DPR-29, Unit 1 Appendix A, Sections 3.7.A.2 and 6.6.B.I.c
- 2) Reportable Occurrence Report RO 50-254/76-25 Enclosed please find a Supplernental Report for RO 50-254/76-25 for quad-Cities Nuclear Power Station. This occurrence was previously reported by our letter NJK-76-300 dated August 12, 1976.
Very truly yours, COMMONWEALTH EDISON COMPANY QUAD-CITIES NUCLEAR POWER STATION
' W N. J. Kalivianakis Station Superintendent l
NJK/LFG/1k cc: G.A. Abre11 bei O Ohh54 OCT 18 1976 PDR
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UP6 ATE REPORT T
' LICENSEE EVENT
.PREVI0US REPORT DATE 8 CONTROL BLOCK:l l l l l l l (Pt. EASE PRINT ALL REQUIRE 31NFORMATION) '
1 8 AME UCENSE NUMBER PE TYPE 01 ll lL lQl Al Dl 1l l 0l 0l-l 0 l 0l 0l 0l 0l-l0 l0 l 7 89 14 15 25 l4l1l1l1l1l 26 30 l 0l 1l 31 32 CATEGORY TV S) DOCKET NUMBER FVENT DATE REPORT DATE O 1 CON'T l l l [T_l y l015 l o l-l 012 l 5l 41 l017121917161 74 l1 lo lo 14 17 16l 75 80 7 8 57 58 59 60 61 68 69 EVENT DESCRIPTION gg l Electrical nitrogen vaporizers have been installed on the Nitrogen Make-up system, l 7 89 80 35 l and are currently in operation. This should prevent. future recurrences of this type. l 7 89 Bn EE l These units have " cold" valves downstream of the vaoorizers. which are desianed to l 7 89 80 DE l Isolate on a given low temperature, thereby preventing non-vaporized nitrogen from l 7 89 80 DG l entering the nitrogen makeup system. A modification has been initiated to install l 7 89 pnug 80 DE CODE COMPONENT CODE SUPPUER M VOLATON EE l SI El [Ej 7 89 10 11 l P l l l Pl El Xl X l 12 17 W43 44 l Gl 2l 5l 7I 47 L N_j 48 CAUSE DESCRIPTION ~
HE I l 7 89 80 EE I I 7 89 80 DE I I FACluTy METHOO OF STATUS % POWER OTHER STATUS DISCOVERY DISCOVERY DESCRIPTON 1
9 y l 0l 8l 8l l NA l (_BJ l Preparation for containment de-Inert ln 7 8 10 12 13 44 45 48 80 ACTMTV COATENT RELEASED AMOUNT OF ACTMTY LOCATON OF RELEASE 35 y OF QRELEASE l NA l l NA l 7 8 9 10 11 44 45 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTON DE I IN l Al [_j l NA l 7 89 11 12 13 80 PERSONNEL INJURIES -
NUMBER DESCRIPTON 3[ l lN l Al l NA l 7 89 11 12 80 OFFSITE CONSEGUENCES X l- NA .
l, 7 89 . 80 LOSS OR OAMAGE TO FA;ruTY TYPE DESCRIPTON .
D2 [_Z_j l NA !
7 89 10 80 PUBUCTTY BE I NA l 7 89 80 AOOITIONAL FACTORS D@ l (EVENT DESCRIPTION CONT) this same type of valve downstream of the steam vaporizer to l 7 89 80 DE l the nitrogen purge system. (R0 50-254/76-25) l 7 89 80 NAME: Lawrence F. Gerner PHONE: 309-654-2241 ext. 157 sPo ees.eer