ML20072H071
| ML20072H071 | |
| Person / Time | |
|---|---|
| Site: | Byron, Braidwood  |
| Issue date: | 08/17/1994 |
| From: | Saccomando D COMMONWEALTH EDISON CO. |
| To: | Russell W NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM), Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 9408250198 | |
| Download: ML20072H071 (3) | |
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1400 Opus Place Downers Grove, ilknois 60515 August 17,1994 U.S. Nuclear Regulatory Commission Document Control Desk Washington D.C. 20555 Attention:
Mr. William T. Russell
Subject:
Inservice Testing Program Plan for Pumps and Valves Program Scope Update Byron Station Units 1 and 2 (NPF-37/66; NRC Docket Nos. 50-454/455)
Braidwood Station Units 1 and 2 (NPF-72/77; NRC Docket Nos. 50-456/457)
Dear Mr. Russell:
During two recent regional inspections of the Inservice Testing (IST) program (May,1993 at Braidwood and January,1994 at Byron) a weakness in the program scope was identified. Byron and Braidwood Stations committed to jointly review the scope of the IST program and develop a scoping basis document. This scoping effort was being performed in accordance with the scoping guidelines found in ASME/ ANSI OM-1988, Parts 6 and 10. The use of OM-6 and OM-10 will enable this review to be used for Byron's ten-year (second interval) program update.
The program scope review was completed on June 30,1994. The scope review identified that 90 and 74 valves (two unit total) need to be added to Byron and Braidwood's programs, respectively. Both sites intend to aggressively pursue initial testing of all the identified valves; however, several of the valves being added can only be tested in plant conditions achieved during a cold shutdown or refueling outage. Because of this, the sites have designated the valves into one of 3 test implementation groups:
Group 1 Unit 1 and Common Cold Shutdown / Refueling Group 2 Unit 2 Cold Shutdown / Refueling Group 3 Normal Quarterly test
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e Mr. Russell August 17,1994 Both sites intend to test Groups 1 and 2 valves during the appropriate upcoming outages. Group 3 valves will be tested at normally scheduled quarterly intervals.
For Byron Station, all new valves will receive initial testing by the completion of the upcoming Unit 2 refueling outage (current completion date of 4/16/95).
Similiarly, Braidwood plans on completing all initial valve testing by the end of the upcoming Unit I refueling outage (current completion date is 10/95).
The following details the site specific implementation plan:
Byron's Schedule Implementation Plan 09/14/94 Submit IST Program revision including additional scope.
09/30/94 - 11/12/94
- Begin implementation of quarterly tests (Group 3) and of valves identified as Refueling Outage / Cold Shutdown for Unit 1 (Group 1) 02/95 - 04/16/95 Begin implementation of testing valves identified as Refueling Outage / Cold Shutdown for Unit 2 (Group 2).
Quarterly testing (Group 3) implementation continues.
04/16/95 All newly identified valves have been initially tested and are being tested per frequency requirements.
Please note that this implementation schedule reflects testing of the Group 3 valves from 9/30/94 to 4/16/95. This timeframe is necessary because of the resources required to support the testing of Group 1 & 2 valves during the Unit 1 & 2 outages, which are scheduled within a short timeframe.
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Mr. Russell - August 17,1994 Braidwood's Schedule Implementation Plan 09/14/94 IST Program revision originally planned for September 1994 has been deferred to April 1995 per Dec.1993 response to SER.
09/30/94 - 11/12/94 Begin implementation of quarterly tests (Group 3) and of valves identified as Refueling Outage / Cold Shutdown for Unit 2 (Group 2).
01/31/95 Quarterly testing (Group 3) implementation is completed.
09/95 - 10/95 Begin implementation of testing valves identified as Refueling Outage / Cold Shutdown for Unit 1 (Group 1).
11/95 All newly identified valves have been initially tested and are being tested per frequency requirements.
If you have any questions concerning this matter please address them to this office.
Respectfully, M
Denise M. Saccomando Nuclear Licensing Administrator cc:
R. Assa, Braidwood Project Manager - NRR G. Dick, Byron Project Manager - NRR S.G. Dupont, SRI - Braidwood H. Peterson, SRI - Byron B. Clayton, Branch Chief-Region III Illinois Department of Nuclear Safety
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