ML19320D096

From kanterella
Jump to navigation Jump to search
Responds to IE Bulletin 79-17,Revision 1, Pipe Cracks in Stagnant Borated Water Sys at PWR Plants. Three Recordable Indications Noted in Two Welds Determined to Be Geometric Reflections Caused by Weld Root Configuration
ML19320D096
Person / Time
Site: Rancho Seco
Issue date: 03/28/1980
From: Mattimoe J
SACRAMENTO MUNICIPAL UTILITY DISTRICT
To: Engelken R
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
IEB-79-17, NUDOCS 8007180541
Download: ML19320D096 (1)


Text

%,

r T/ C Q SNIUD SACRAMENTO MUNICIPAL UTILITY DISTRICT O 6201 S Street, Box 15830, Sacramento, California 95813; (916) 452-3211 March 28, 1980 GC' -

/f Y $..'%

W

,Q' N-Q,

.,-ff ; p

,s o

-\\

Mr. R. 11. Engelken, Director l[

g '-;&

Region V b

. ~E9 Nuclear Regulatory Commission 1990 North California Boulevard j,[Y' Suite 202, Walnut Creek Plaza 9,

Walnut Creek, Ca. 94596

'g/

Docket No.:

50-312 Re:

IE Bulletin 79-17, Revision 1 Pipe Cracks in Stagnant Borated Water Systems at PWR Plants

Dear Mr. Engelken:

Examinations were performed at Rancho Seco in accordance with Item 2b of IE Bulletin 79-17 with no reportable indications noted.

Three recordable indications were noted in two welds (two in one weld and one in another weld), which were all determined to be geo-meteric reflections caused by weld root configuration or counterbore.

We consider our response to the requirements of IE Bulletin 79-17, Revision 1, complete.

If you have any questions, please contact Mr. Ron Colombo of my staff.

Respectfully Submitted,

---n

.i ttL M

. J. Mattimoe, Chief Engineer cc: Office of Inspection & Enforcement 80071805W Q