ML17252A508
| ML17252A508 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 08/06/1974 |
| From: | Stephenson B Commonwealth Edison Co |
| To: | James Keppler US Atomic Energy Commission (AEC) |
| References | |
| Download: ML17252A508 (3) | |
Text
UNITED STATES ATOMIC ENERGY COMMISSION DIRECTORATE OF REGULATORY OPERATIONS REGION Ill 799 ROOSEVELT ROAD GLEN ELLYN, ILLINOIS 60137 TEL.EPHONE
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A.
RO Inspect-ion Report No.
Transmittal Date Distribution:
RO Chief, FS&EB RO:HQ (5)
DR Central Files Regulatory Standards (3)
Licensing (13)
RO Files Distribution:
RO Chief, FS&EB RO:HQ (4)
L:D/D for Fuels & Materials DR Central Files
.RO Files B.
RO Inquiry Report No. -~~~~~~~~~~~~~-
- c.
Transmittal Date Distribution:
RO Chief, FS&EB RO:HQ (5)
DR Central Files Regulatory Standards (3)
Licensing (13)
RO Files Incident Notification From:
Transmittal Date Distribution:
RO Chief, FS&EB RO:HQ (4)
Licensing (4) pR Central File§ RO Fil,es Distribution:
RO Chief, FS&EB RO:HQ DR Central Files RO Files Commonwealth Edison Co.
Docket No. 50-249 (Licensee & Docket No. (or License No.)
August 6, 1974 Distribution:
L:D/D for Fuels & Materials DR Central Files RO Files
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04277 TOVE MORR IS IL 9507@420P *.CDT PMS MR JAMES G KEPPLR Q1
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REGIONAL DIRECTOR TEL:E0ru.b1S (OTHER TH~N YONEY ~~S).
DIR ECTOR A TE OF REGULA TORY. ~f~t~BELIVERY req1.rnsted? __ (YES-AGENT~~ADDRESS£E91 REGION.3 WUX
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799 ROOSEVELT RD
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~~~I SUBJECT DPR-25 DRESDEN NUCLEAR POWER
~TATION UNION 3 THIS WILL CONFIRM A CONVERSTATION WITH F.
~AURA OF YOUR OFFICE THIS DATE CONCERNING THE FAILURE OF THE SEAT rATERIAL OF A~3-1601*22 AN AIR OPERATED PRIMARY CONTIN~ENT ISOLATION VALVE. THE OTHER VALVE IN LINE WITH THIS VALVE HAS BEEN PLACED
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sF.1201,,ti.6lHE ISOLATED CONDITION IN ACCORDANCE WITH SEC.TION 3.7.D.2 C.
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- v*,:_,_b OF THE TEC~NICAL SPECIFICATION. PREPARATIONS ARE_ NOW UNDER WAY TO R~CONFIRM THE LE~K TIGHTNESS OF fHE OTHE~ VALUVES WHICH PROVIDE THE PRESSURE BOUNDARY IN THIS LINE B B STPHENSON SUPERINTENDENT DRESDEN NUCLLEAR POWER STATION COMMONWELATH EDISO~ CO RRl MORR IS ILLINOIS NNNN JUL 3 1 : 974
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COi'1f~ 799 ROOSEVELT ;::rn
'GLEN ELLYr~ IL 6013T SU3JECT DPR-2~ ~RESDEN. ~UCLEAR POWER STATION UN1T 3.
THIS WILL CONFIJH-: *. ti" CP,,N.V.E..R~h:)),,ON,, WJJK:F:. MA.. W..RA.,, O.f YO..UR OFFICE AT 1445 HOURS 'THIS' DATE CONSERNING A FAILURE OF THE SEAT
- r. MATERIAL OF AIR OPPERATED ISOLATIOi~ VALVE A0-3-1601-21. THIS VAL VE: *WHICH IS VJ SERIES WITH THE PREVIOUSLY REPORTED A0-3-160122 VALVE WAS DISCOVERED TO HAVE SEAT DEGREDATION BY i
L 0 CAL LEAK RATE TESTING AT 2300 '-!OURS JULY 26, 197~'1. A RE.~CTOR SHUTDOWN WAS COMMENCE:D AND THE REACTOR !1iAS IN COLD SYUTD~':.'N AT 0900 JULY,* 27.,
1974.* 'AD.DITION.l\\L DETAILS IN THE FORM OF A TEN
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DAY LETTER ~ILL EE FORTHCOMING B E STEP4ENSON SUPERIN!E~DENT DRESDEN NUCLEAR POWER STATION COMMONWEATH EDISON COMPANY R R #l MORRIS ILL 60450 JUL 3 1
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