ML20085J927

Telecopy Ro:On 740516,during Local Leak Rate Testing,Msiv 1B Found W/Leakage Above Allowable Limit.Cause Not Stated

ML20085J927
Person / Time
Site:	Dresden
Issue date:	05/16/1974
From:	Stephenson B COMMONWEALTH EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20085J926	List: ML20085J922 ML20085J927 ML20085J933
References
NUDOCS 8310190210
Download: ML20085J927 (2)

Text

- . . - _ - - - . - . _ - - - - _ _ _ _ _ - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

-EAEEJ '

i eA w

tuestern union ' Tele 9 ram '

VEC588(2201)(1-046150c I6 4 2159 N /6 pg 9: IO t" t". o 44 1 Sgktg3 4

ICS IPMVEIA MVN ',o i. Uhr % eO.QDp 4P, f07y

01236 TDVE MORRIS IL 95 65q) gp, QI g9 PMS MR J A'1ES G KEPPLER K *dr #

l

.'* to e

. %N A.~.

DIRECTOR DIRECTORI ATE OF REGU12ATOWN MATI p.

REGION /3

%,> ,, 4

'IS ATOMIC ENERGY COMMISSION win 0'

WijX 799 ROOSEVELT RD N Io '

l g GLE1ELLE1 IL 60157 '/.. [' #Sej YuS S'13 JECT DPR-25 DRESDEN NUCLEAR POWER ST ATION UN IT5 4N.

, in o IHIS WILL CONFIRM A CONVERSATION WITH F MAURA 0F YOUR OFiqCE x@vN x.

^$ AT 1600 HOURS THIS DATE CONCERNING THE DISCOVERY DURING \

N

$ LOCAL LEAK RATE TESTING OF LEAKAGE PAST THE IB MA IN STE AM i

OO LINE ISOLATION VALVE IN EXCESS OF THE SURVIELANCE REQUIREMENTS k GIVEN IN SECTION 4.7 0F THE TECHNICAL SPECFICATIONS THE

$$m LEAK AGE MEASURED W AS 24.8 SCF AT 25 PSIG. ALL OTHER MAIN STEAM ISOL ATION VALVES HAD LEAK RATE LESS THAN TAG !!.5 FCF o

...m mum

• EAR EE

• w tuestern uni ~on Tele ram o .3 4

e

.,y g g 32'lC

,, a p. Ti AT 25 PSIG MAXIMUM ALLOWABLE 3 3 STEPHENSON -

SUPERINTENDENT DRESDEN NUCLEAR POWER STATION j COMMONVE ALTH EDISON CO MPANY RI 1 MORRIS IL 1111

, 2 0 2074 l i

SF-1201 (RM9)

, L

[

. . ~

g g UNITED STATES o y -

e'x." ; , ATOMIC ENERGY COMMISSION d T DIRECTOR ATE OF REGULATORY OPER ATIONS -h k'o/ < REGION lit S Nil o' 799 ROOSEVELT ROAD 7gegg y

GLEN ELLYN. ILLINOIS 60137 (312) 858-2660 T

/

A. RO Inspection Report No. - - - - - - - - - - - - - - - - - - - . . T Transmittal Date I Distribution: 6-Distribution: 9 RO ChJef, FSEEB RO Chief, FS6EB RO:HQ (5) RO:HQ (4) (

DR Central Files L:d/D for Fuels & Materials y Regulatory Standards (3) DR Central Files 7 Licensing (13) Ru Files -3, RO Files _$

2 Rg

=

B. RO Inquiry Report No. v Transmittal Date . - - - - - - . - . - -

g Distribution: Distribution:

RO Chief, FS6EB RO Chief, FS6EB z RO:HQ (5) RO:HQ j-DR Central Files DR Central Files Regulatory Standards (3) RO Files .

Licensing (13)

RO Files 4 -

E N

C.

Incident Notification From: Cor::cionwealth Edison Co. Docket No. 50-249 (Licensee 6 Docket No. (or License No.)

{p Transmittal Date June 5, 1974 }g Distribution: Distribution:

RO Chief, FS6EB, RO:HQ (4)

RO Chief, FS&EB RO:HQ (4) h"$ -

Licensing (4) L:D/D for Fuels & Materials }-

DR Central Files DR Central Files il R0 Files RO Files -:-

g Z

I f &

~

)

,i .

4 5

. . .