ML051100291
| ML051100291 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 04/15/2005 |
| From: | Bezilla M FirstEnergy Nuclear Operating Co |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| 3137, GL-96-006, TAC M96803 | |
| Download: ML051100291 (3) | |
Text
_1 5501 North State Route 2 FirstEnergy Nuclear Operating Company Oak Harbor, Ohio 43449 MrkB. Bezilla 419-321-7676 Vice President - Nuclear Fax: 419321-7582 Docket Number 50-346 License Number NPF-3 Serial Number 3137 April 15, 2005 United States Nuclear Regulatory Commission Document Control Desk Washington, D. C. 20555-0001
Subject:
Response to NRC Request for Additional Information Concerning Generic Letter 96-06, "Assurance of Equipment Operability and Containment Integrity During Design-Basis Accident Conditions" (TAC No. M96803)
Ladies and Gentlemen:
This letter transmits a FirstEnergy Nuclear Operating Company (FENOC) response to a Nuclear Regulatory Commission (NRC) Request for Additional Information (RAI) related to the Davis-Besse Nuclear Power Station, Unit I (DBNPS) response to Generic Letter (GL) 96-06, "Assurance of Equipment Operability and Containment Integrity During Design-Basis Accident Conditions." GL 96-06, issued by the NRC on September 30, 1996, requested, in part, that licensees evaluate thermally-induced overpressurization of isolated water-filled piping sections in containment.
By letter dated March 3, 2005, (letter Log Number 6274), the NRC staff requested that, due to recent piping modifications, FENOC either affirm that the DBNPS responses pertaining to thermally-induced overpressurization of isolated water-filled piping sections in containment are still valid or supplement the responses. The NRC requested that FENOC respond within 45 days of the date of the letter with a schedule for responding to these requests.
The information requested in the NRC's March 3, 2005 letter is dependent upon activities to be performed during Davis-Besse's fourteenth refueling outage (I4RFO), scheduled to begin in March 2006 and end in April 2006. The system changes that have already been completed do not appear to affect the previous response pertaining to thermally-induced overpressurization of isolated water-filled piping sections in containment. Proposed future changes are to be completed during 14RFO. Therefore, FENOC will provide the requested responses within 90 days following the completion of 14RFO.
A list of regulatory commitments made in this letter is included in Enclosure 1.
Docket Number 50-346 License Number NPF-3 Serial Number 3137 Page 2 If you have any questions or require further information, please contact Mr. Henry L. Hegrat, Supervisor - Fleet Licensing, at (330) 315-6944.
Very truly yours, MSH Enclosure cc:
Regional Administrator, NRC Region III J. B. Hopkins, DB-I NRC/NRR Senior Project Manager C. S. Thomas, DB-1 NRC Senior Resident Inspector Utility Radiological Safety Board
Docket Number 50-346 License Number NPF-3 Serial Number 3137 Enclosure Page I of I COMMITMENT LIST The following list identifies those actions committed to by the Davis-Besse Nuclear Power Station, Unit Number 1, (DBNPS) in this document. Any other actions discussed in the submittal represent intended or planned actions by the DBNPS. They are described only for information and are not regulatory commitments. Please notify Henry L. Hegrat, Supervisor - Fleet Licensing (330-315-6944) of any questions regarding this document or associated regulatory commitments.
COMMITMENTS DUE DATE The information requested in the NRC's March 3, 2005 letter Within 90 days is dependent upon activities to be performed during Davis-following completion Besse's fourteenth refueling outage (14RFO), scheduled to of 14RFO begin in March 2006 and end in April 2006. Therefore, FENOC will provide the requested responses within 90 days following the completion of 14RFO.