ML20100Q842
| ML20100Q842 | |
| Person / Time | |
|---|---|
| Site: | Byron  |
| Issue date: | 03/06/1996 |
| From: | Lesniak M COMMONWEALTH EDISON CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| GL-89-10, NUDOCS 9603120147 | |
| Download: ML20100Q842 (2) | |
Text
Commonwealth F.dison Company g400 Opus Piace 4 Oc'ktters Grove, IL 60515-5701
~
March 6,1996 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D. C. 20555 l
Subject:
Close-out of Generic Letter 89-10 Activities Byron Nuclear Power Station, Units 1 and 2 Facility Operating Licenses NPF-37 and NPF-66 NRC Docket Numbers 50-454 and 50-455
References:
- 1. D. L. Taylor (Comed) letter to U.S. NRC, dated September 28,1990.
- 2. L. O. DelGeorge (Comed) letter to U.S. NRC, dated November 1,1993.
- 3. " Summary of Motor-Operated Valve Meeting March 15 and 16,1995",
G. F. Dick, Jr. (NRR) letter to Comed, dated May 18,1995.
Ladies and Gentlemen-References 1 and 2 provide Byron Station commitments to complete required actions associated with Generic Letter (GL) 89-10, " Safety-Related Motor-Operated Valve Testing and Surveillances." Reference 3 provides a summary of the meeting that was held at NRR on March 15 and 16,1995, where Comed presented a status of GL 89-10 activities along with justification for various technical positions used at Comed for the GL 1
39-10 Program.
This letter is being sent, per item m. of GL 89-10, to notify the NRC that actions a.
through h. in GL 89-10 are completed with the exceptions noted below. Therefore, Byron Station respectfully requests closure of Gc.neric Letter 89-10.
)
At Byron Station, all gate and globe valves in the current GL 89-10 valve population have been tested as part of GL 89-10 activities. Since completion of the gate and globe valve testing, Byron Station has been focusing on the butterfly valve testing, both static and dynamic. Byron Station is on schedule to complete all butterfly valve testing on or ahead of the commitment dates documented in References 1 and 2. At this time,45 butterfly valves remain to be tested. Of these 45 butterfly valves,18 will also be dynamically tested. Margin evaluations of the diagnostic data from completed butterfly valve testing to date provides assurance that more than adequate margin exists for the remaining butterfly valves.
9603120147 960306 PDR ADOCK 0500 4
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SC @pcument Control Desk March 6,1996 l
Ifyou have any questions regarding this correspondence, please contact this office.
l Sincerely, e
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Marcia T. Lesniak Nuclear Licensing Administrator cc:
H. Miller, Regional Administrator-RIII G. Dick, Byron Project Manager 'NRR H. Peterson, Senior Resident Inspector-Byron Illinois Department of Nuclear Safety-IDNS J
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