ML20084H034
| ML20084H034 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 04/08/1974 |
| From: | ROCHESTER GAS & ELECTRIC CORP. |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| Shared Package | |
| ML20084H033 | List: |
| References | |
| AO-50-244-74-04, AO-50-244-74-4, NUDOCS 8304270431 | |
| Download: ML20084H034 (2) | |
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Ginna StatfoW..k.:.:,.
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i April 8(.1974
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Mr. James P.-Q'ReillW Director.'.:- e lj.
Directorste oERegulatopy Operations; e
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Region 4. -
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U. S. Atomic Energy /Conslission s.:
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631 Park Avenue,tr;s-King of' Prussia,. Pennsylvania 19406 Subjectr. Abnormal O:currencas f 74-4
'." Failure.cf. the e,10c Safety Injectioa.
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Pump to.: Start Nanuslly.fras Bus 16/2:.'.
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Ginna Stationg.. Unit. #1 - d-
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Dear Mr. :
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This ia to confIrat:ay.. phone call-to:Mr. Walter.'Baunack. on Sundays. April 73 1974 to " report Abnomal.0ccurrence :14-4 at Cinna Station.ci..c,
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While conducting Periodic Teat -(PC-2.1)s.andifo11owing the aatisfactory tatt w-i of the:1-A and.14-Safety..InjectionePtags,:the.1-2 Safety Injection.Pumir f
which can be operated froar either: Bus 44 or.Bua r.16s failed.to start maoually..
{A on Bus.16..itw.of".the :four tinna it.was
- tried. -This is
- the second. time a fail "- J.:
R ute of., this nature has occurred.at:Ginaa. St6tionmThe other tr= was on Junar... - -
ll and.Juna 11 1973 and ' reported :to.the:.AEC arr.Abnomal Occutrences.73-3.and..
jl0 73-4.
The electricians were called io.and'.the viring circuitry. and.allrinterlock.s
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i were chacked.. The following,.two canaas: for the fallure, were : founds.
h (1) A 1 HFD capscitar in the conteni.ci cuit.was found to: fail inter
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mittentlyv.This is.connectedt in series with a lohm resistor andw g
they are zin. parallel:.with a.nortaally-open contact.for.;the. white f:
breaker.: trip light and thec.74 BFD *16em relay..This fattura caused a white light ani.alam< a -
q (1) The tripper:bar.sawitch var sisotfound.to be. closing.toa.soon.
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allowing the :"X". relay to operate; the. circuit breaker:ctoaing.
the solenoid.before the : Lockout coil..could. engage tha. mechanical r..
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latch assemblye This caused a.. trip-free. operation and cbreaker -
}l closing. failure. This was.also an intemittent. failure.:... -
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8304270431 h4
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ATOMIC ENERGY COMMISSION
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Chief, Field Ceryleen un :
Enforcement brauch, II 4 AE ;0iitiAI., 000Ulliu':Cr.
Licencee-Loaket I;o. :
Alnorml Oaeurrence:
The attached report fro:a the cubject licencee is forw trded in accordance with 110 M uiuul Chapter 1000.
Follow-up will be pe rfor: mi during the next incpect,lon, as appropriate.
Copies of the report luve been forw:ir;i"d to the PDil, Local PDF, !; SIC, LTIE, onJ Stute r"p recent:itiv e c. h licencee will cut: sit. 10-day written report to Licencing.
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