ML20086K448

Forwards Final EPRI Rept, Inside Surface Ultrasonic Technique Capabilities as Demonstrated for Insp of FW Nozzles, Demonstrating Ultrasonic Exam Techniques as Replacement to NUREG-0619 Liquid Penetrant Exam

ML20086K448
Person / Time
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date:	07/14/1995
From:	Tremblay L VERMONT YANKEE NUCLEAR POWER CORP.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20086K450	List: ML20086K448 ML20086K458
References
RTR-NUREG-0619, RTR-NUREG-619 BVY-95-78, NUDOCS 9507200148
Download: ML20086K448 (1)

Text

, . . = .~ - _ . - - -- -- . . - .

'e ,s , j l

4 VERMONT YANKEE j NUCLEAR POWER CORPORATION  !

.- Ferry Road, Brattleboro, VT 05301-7002 '

i

, < REPLV 70 ENGINEERING OFFICE j h* $80 MAIN STREET j BOLTON, MA 01740 1 (508) 779-6711 July 14,1995  :

United States Nuclear Regulatoy Commission BVY 95 - 78 l A'ITN: Document ControlDesk l Washington, DC 20555 i

References:

a. License No. DPR-28 (Docket No. 50-271)

b. Letter, VYNPC to USNRC, BVY 94-07, dated February 11,1994 3

c. Memorandum, USNRC to Distribution, NVY 94-143, dated August 15,1994 .

d. Letter, USNRC to Distribution, NVY 94-157, dated September 9,1994 i

c. Letter, VYNPC to USNRC, BVY 94-110, dated November 8,1994

f. Letter, VYNPC to USNRC, BVY 95-08, dated January 19,1995 i

g. Letter, USNRC to VYNPC, NVY 95-02, dated February 6,1995  ;

l

Subject:

Feedwater Nozzle Inspection Technique Qualification - Final Report j In Reference (f), Vermont Yankee transmitted to NRC an interim EPRI report in support of the  ;

inspection technique for feedwater nozzles utihzed by Vennont Yankee during the 1995 refueling j outage. In Reference (g), the NRC staff concluded that, based upon the information submitted and an independent staff analysis, Vermont Yankee could use the proposed UT inspection technique in lieu of M examination for the feedwater nozzles for the Spnng,1995 refueling outage. Final i approval of Vermont Yankee's inspection technique and interval was determined by the staff in  !

Reference (g) to be dependent upon the results of the final UT technique qualification. 'Ihe NRC l staff committed to review the results from the completion of the qualification pivgrim when  !

available and issue a final evaluation. 1 i

Enclosed please find a copy of the final EPRI Report for this issue, entitled "Inside Surface - [

Ultrasonic Technique Capabdities as Demonstrated for the Inspection of Feedwater Nozzles", with an EPRI cover letter dated June 20,1995. This final report summarizes the quali&atina of the inspection technique utilized by Vermont Yankee. 'Ihe demonstration was successful in l documenting the ultrasonic procedures and equipment considered for use in inspection of the t feedwater nozzle inner radius region.  !

We trust that this report will result in final NRC approval of Vermont Yankee's inspection technique and interval. Should you have any questions or require additional information, please l contact this office.  :

Sincerely, l VERMONT YANKEE NUCLEAR POWER CORPORATION l

d.3 , b. oy30 .

[u +

! Leonard A. Tremblay, Jr., P.E. I Senior Licensing Engineer i oc: USNRC Region I Administrator i USNRC Resident Inspector- VYNPS i USNRC Project Manager- VYNPS ,  ;

9507200148 950714 ADOCK 05000271 L00I  ;

PDR ri  :

I .