ML17252A205

Transmittal of Reportable Occurrence No. 50-249/1976-6

ML17252A205
Person / Time
Site:	Dresden
Issue date:	04/06/1976
From:	Stephenson B Commonwealth Edison Co
To:	James Keppler NRC/RGN-III
References
BBS Ltr. #76-287 50-249/1976-6
Download: ML17252A205 (3)

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e CommonwAh Edison Dresden Nucle~ower Station l).R. #1 Morris, Illinois 60450 Telephone 815/942-2920 1

BBS Ltr. #76-287 April 6,

• Mr. James G. Keppler, Regional Director Directorate of Regulatory Operations - Region III U.S. Nuclear Regulatory Connnission 799 Roosevelt Road Glen Ellyn, Illinois 60137 Enclosed_please find Reportable Occurrence number 50-249/1976-6. This report is being submitted to your office in accordance with the Dresden Nuclear Power BBS:aw

• Enclosure**

cc: Director Director Management Informatio~ Program Control

. File/NRC

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e LICENSEE EVENT REPORT e co.NTRDL,. BLOCK: I I I I I I I [PLEASE PRINT ALL REQUIRED INFORMATION]

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'* LICENSEE LICENSE EVENT NAME LICENSE NUMBER TYPE TYPE

@E] IX IL.I DI RI$' 13 I 10101-10101010101-1010 I I.ff I / I t I I I ! I 10121 7 8 9 1A 15 25 26 30 31 32 REPORT REPORT CATEGORY . TYPE. SOURCE OOCKET NUMBER EVENT OATE . .. REPORT DATE

@E]coN'T I

• I I lhJ U::J 101s101~1012141q1 10 13. I;{_ 14-171"74I lbl4101~171~1 7 8 57 58 5!:! 60 61 68 69 75 80 EVENT DESCRIPTION (filg] I l>V&! J\)(t... SuRVt:I L-L.A.NC OE Tw~- UN 1T- ..:L cc.sw Fwoo Pi2D1E"cT10JJ Vr-\UL-r, og.tl r N I 7 8 9 80 10131 IVAW1£ d.-yggq -Jlf wlls [OuND BLOCf:t:O OPE.JJ mEc..J.iiO.N 1c.ALLY AND Lcc.-ne.1cl'lt.-LY I 7 8 9 80 lol41 I 1rJOPERA6LE". F°Ot.Lo WI NG- \Ht 0 l~C.C>vCR..Y OAJ UN' (- :2.,. 7 Tl+"S" '19 q? - ]Lf ynLvE OA.;!

7 8 9 . . . . 80 lol5l lutJ1-r-3 WA~ IN~ Pcc...-riso IJ. rJ a FOUND -ro r3<:::. { tJ n ~I l'Y/1LARJJN07>7=e..A81..0 CONDJ(IDNJ 7 8 9 > 80 lol6I I Tl-le: Vfl.LVS OJV 8D7H UNITS WcR.£ PL1lc£D mANufl\W...Y IN //-t C.UJsED Pos1noAJ I 7 8 9 PRIME (sec A-rlAGH~ S>+&sl) 80 SYSTEM CAUSE COMPONENT COMPONENT CODE CODE COMPONENT CODE SUPPLIER MANUFACTURER VIOLATION

@0 IWIBI 7 8 9 10 L1J 11 12 IVIAILIVIOl.PI 17 LbJ 43 IA 44 1~11 101 47 w48 CAUSE DESCRIPTION

@@I-nu;:: ccsw VAULT QR.fl.lNVALVf°"<; lAJE£E PART of jl\ V'YlDDIFCC-A~LOtJ (rJ1-ru*rrE-O 1J1JI 7 8 9 80 lol91 7

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14'(7,ld-_ AfVD comPt..ET£D, w1TH REV1~10N5;. OUR/NG- Tl-l'f: t'i 75: ReF'u£t..INC- ovrnG-f'S.

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I 80 .

IT@ l+uNc.**noivAL /<;;,111\JG-- ~6Qv1Rel'YIGN1'3; w~ Nor 10EtJr1FtED JN Ti+C moo11=1cA'T10A.J I 7 8 9 FACILITY METHOD OF (Sf:E AtrflC.~ SN£!) . BO STATUS  % POWER OTHER STATUS DISCOVERY DISCOVERY DESCRIPTION EE] lg_] 1017121 N8 l£J Nft I 7 8 9 10 12 13 44 45 46 BO FORM OF /

ACTIVITY CONTENT '*

RELEASED OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE

[!El .tzj ~ .._I_ _ N_fl._ _ ____, Nit 7 8 9 10 11 44 45 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION

~ 1010101 @ NI+

7 8 9 11 12 13 80 PERS"ONNEL INJURIES EE) lololOI NUMBER - DESCRIPTION

..___N_A_____________________________________________.

7 8 9. 11 12 80 OFFSITE CONSEQUENCES

~ 80 7 8 9 LOSS OR DAMAGE TD FACILITY

. TYPE DESCRIPTION

-7El~la 9m Ii 10~----~'-'----------------~--~----------~~--------~--------~----------~a==o PUBLICITY E1?J NA 7 89 80 ADDITIONAL FACTORS

~ A 7 8 9 80 PHONE: CK(, .1.:t2

• GPO 881*667

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EVENT DESCRfP-1'*ION -(continued) on the. date of the discovery-. The Unit..,-2 valve will be fully operational prior .to tinit start-up. The Unit-3 valve was made *operational on April 5, 1976~ and the Tech Spec su.rveillance was performed for verification.

(50-249/1976-6)

CAUSE DESCRIPTION (continued) approval; consequently,. the valves were not functionally tested upon

¢ompletion of the* ..modifications. Unqer current procedures, modification approvals are mo.re closely reviewed for inclusion of appropriate. post-modification te~ting requirements.

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