ML20086B050
| ML20086B050 | |
| Person / Time | |
|---|---|
| Site: | Fort Saint Vrain  |
| Issue date: | 12/23/1974 |
| From: | Mathie F, Swart F PUBLIC SERVICE CO. OF COLORADO |
| To: | Howard E NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| Shared Package | |
| ML20086B055 | List: |
| References | |
| AO-50-267-74-23, NUDOCS 8311170021 | |
| Download: ML20086B050 (4) | |
Text
{{#Wiki_filter:. s g ,_~, i t ts (; pu1311e service company oe echado P. O. Box 361, Platteville, Colorado 80651 S U 4 ? N E0 C y 197 ~ 4 k E 'A g L* r, December 23, 1974 [ s' gN rhdi' g .f - g/DW' ?3 '/./ .~ t Mr. E. Morris Howard, Director /-' $//j, la }-O; Directorate of Regulatory Operations /;e ~l Region IV, USAEC P. O. Box 5039 - j' ' s, ?! iY< *' White Setticaent, Texas 76108 ~ / u.
Dear Mr. Howard:
/ k REF: Facility Operating License No. DPR-34 Docket No. 50-267 Enclosed please find a copy of Abnormal Occurrence Report No. 50-267/74/23, submitted per the requirements of the Technical Specifications. Very truly yours, d' h O be/ Frederic E. Swart Superintendent Nuclear Production Fort St. Vrain Nuclear Generating Station FES:11 cc: Mr. Angelo Giambusso t N 8311170021 741223 PDR ADOCK 05000267 $g S PDR COPY SENT REGION g
[vD D v = REPO*;T DATE: Ike,d,cr 30, 197/ Alm 0R:IAL OCCU;tHL:!CE i nCCUp*'.' :;CE DATE : Ik cr :.be r 11, 1974 l FORT ST VRAJ:: !'UCLi'AR GE:ER/. TING STATION ,, \\M k ~ PUBLIC SERVICE UGPA'i'l 0F COLonADO / < g\\ P. O. 1:0X 361 ,,/ //j(,/fn%* Q,x\\M PilsTTEVILLE, COLORADO C0651
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o "; w4c / t, sO REPORT No. 50-267/74/23 f u e,g A,, - ~ Final \\A /' ' .:.,#r f8' J &)7 'Q ggN / r-{'\\k N J DE';TirI C A.TIO:1 0F / O 0 CCiG:.17:CF :. Enginc A of staidby dicac1 gcneratc,r 1-A declutched during a two hours curveillnnce run end no alarr's annunciated. CO:,'DITIO':S 'RIOR 70 OCCU:'im' <" : Stendy Strtc Power Routine Shutamm Hot Shutdom Routine Load Chang.e k X Cold Shut.dmm X' Other (spccif y) Ecfueling Shutdcun P1r f out of r.rr. Ire to ch
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INc j Secondary Coolant Pre: cure O poig i Tenp err. tu re_ O 'F ric-a _0 J/hr. Priucr, Cool r.n t Pressure M/A ysJ g Tc:.perature M/A 'F Core Inlet M/A 'F Core Outlet Flow 0 f/hr. 13109 i
O O Page 2 1 1 DESCRIPTION OF _OCCUI".3 AC E : During the tuo hour v:cckly surveillance rest at 1/2 Joad, cugine A of stcndby ncncrator 1-A declutched. To alarns annunciatcJ. On a second attenet the entine ctain declutched aa noon ac, the unit uns l started. /nain no alarns nnnunciated, i c APP /.RE?:T cal'SE OF OCGP_Ji_r:"'E: Design Unne. val Servi ce Con:'.. l including faviroa. l l l Manufacture Component Tailurc a k Inntallation/Const. Other (specity) j i Operator See_bc3cv ~ i i l I Precedure i i i j Dirt under the seat of the colenoid valve to the clutch operating cyl.inder I allowed the cylinder nir pressure to decay, and the unit to declutch. 4 4 1:o clarns ec:c en because the valve had not operated. I j l'tALYSIS C' c ~.. s........ \\ ~ T m nir 'firr to 1.h u v. nc1J cua' r :s F:c.i f i ef. cit c. a)1 IGre i;;31 partici ' 3 l to cruse Ic :ee throu;.h t;'.e colm.o.~ e v.1ve chc. the r.e porticles Leewm j lodred unO the m.t. 1 1 00PiECTIVE l ,/':TI C' : .l It hcc been recoco;ted for sove t Ec thet thi c cecurr er.:-c va9 a pont E!)ity. f l / cerdin-Ty M: tt C:,r .' " a t.i c 'S. 11 vic.i--in - t c-d cm tinn n p m:' u n, f ' in a c;.c qc w4 ie:
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l r.pprcred th53 1... : t b. cir liter. to the solenoid valves, to tetaave any f orei;;n interini Qirh mght interfere with colenoid valve operat: ion. I I TATLURE DATA /STllILAli KrPOT.TrD OCCUN":CT.f.: l t l l'one I l PR0";P.A'tfATTC 1MPACT-I None r l i i _ -_---- _-.--,,._ _,_.,_. _.m-
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O ~0 k ,-e -.M. i;111 r10 N D1 i Uuutual opeut te, t.bnortal Occutience Occurrcree Cont in. orts leperte repy: A f AJdrou ce I San Franciscu Operations Offico s 1 l USAr.C i. 3 333 1; roadway 7., 1 Oakland, Calif ornia 94612 2 ,2_ Attn: Itanarer i FJnance & N dget 1 Calif. Patent Grou.) Division of Reactor Research ..,s-cod llevelep:r.en t US/.fC Ua Lingen, D. C. 20545 1 Attn: Disector Astt. Dir. for 1,?!ri2 I re;' c ts ~1 2 2 Asst. Dir. f or Cas Coolc 3 Ke actor l'rojcet 3' 1, Ase.t. Dir. f or Ennt g. cn3 *RcJnnology 1 1 Asst. Dir, f or Keactor Saf(ty 1 'l 11 } U:'/JC-r :Ri'0-SD P. O. b::x 81325 San Diego, California 9213S 1 U. Soule', Project Engr. USALC-SCRPG P. O. I.ox 1446 Cancts Park, California 91304 I 1 ~ Address ++ Directnr U F M'C-dCP PO Letter ++ P. O. l ox 14!.6 to +> Cawga l'aik, Califctnia 913G4 + ++ i 3 Technical Informatien Center USAEC P. O. Box 62 Ork Rid,c, Tranessce 37830 1 e 1 JO 2 J eLn t'. I nd i s, 1 : c.,5 ? c at.10, Ly te-Co. I C-31 / tocic Cn. privy P. o. 1 ..c LI M Ic.:., o, c 11 rc r. f.a 9:'13 5 4 L'.m ! rn31 2. 3 ')-b Ciu L 1 J., U lin 1 3
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J. Licbc1t 1[ l K. Stcunard l. .USAEC, Director of Regulations, Washington,D.C. 205?.5 .1 (copy of PowrJ 1e tter & nrem e 1 I 'A. Cia.busso i d (Chiirman,17SC) Os:ar tra 1 1 'l D. Wrenhourg; 'l1 (letter) copy of Ictter to 01:.3 i E. Mevard R. A>res (ITLC Ictter) 1 1 i' s & I. 4 k i s ,e, ,,--4 n .w-e ,p,, ,,,.,--,~wm.., .-.--,_n.- e-e.-n-n,,n, -,r,e,,,-, a., .,w,---aw-.,,.,+,_--m-,,,w,..,-r-e}}