ML081360172
| ML081360172 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 06/02/2008 |
| From: | Wang A NRC/NRR/ADRO/DORL/LPLIV |
| To: | Entergy Operations |
| Wang, A B, NRR/DORL/LPLIV, 415-1445 | |
| References | |
| TAC MD6897, TAC MD6898 | |
| Download: ML081360172 (3) | |
Text
June 2, 2008 Vice President, Operations Arkansas Nuclear One Entergy Operations, Inc.
1448 S.R. 333 Russellville, AR 72802
SUBJECT:
ARKANSAS NUCLEAR ONE, UNIT NOS. 1 AND 2 - REQUEST FOR ADDITIONAL INFORMATION REGARDING RELIEF REQUEST FOR USE OF AN ALTERNATE INSPECTION INTERVAL FOR CONTAINMENT BUILDING STRUCTURES (TAC NO. MD6897 AND MD6898)
Dear Sir or Madam:
By letter dated September 27, 2007, Entergy Operations, Inc. (Entergy, the licensee) proposed an alternative to the Arkansas Nuclear One, Unit 1 (ANO-1) and Unit 2 (ANO-2) Containment Inservice Inspection (CISI) interval. The American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME Code) (1992 Edition with 1992 Addenda and 2001 Edition with 2003 Addenda),Section XI, Subsection IWL-2421(b) permits an alternate inspection interval for containment building structures at sites having more than one containment building, provided certain conditions are met. The licensee submitted a Request for Alternative (ANO-CISI-001) proposing an alternative from the inspection requirements of the ASME Code pursuant to paragraph 50.55a(a)(3)(i) of Title 10 of the Code of Federal Regulations.
The U.S. Nuclear Regulatory Commission staff has reviewed the September 27, 2007, request and has determined additional information is required to complete our review. A request for additional information (RAI) is enclosed. The RAI was discussed with Robert Clark of Entergy on May 7, 2008, and it was agreed that a response would be provided within 45 days of receipt of this letter.
If you or your staff has any questions concerning the request, please contact me at (301) 415-1445.
Sincerely,
/RA/
Alan B. Wang, Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-313 and 50-368
Enclosure:
Request for Additional Information cc w/encl: See next page
June 2, 2008 Vice President, Operations Arkansas Nuclear One Entergy Operations, Inc.
1448 S.R. 333 Russellville, AR 72802
SUBJECT:
ARKANSAS NUCLEAR ONE, UNIT NOS. 1 AND 2 - REQUEST FOR ADDITIONAL INFORMATION REGARDING RELIEF REQUEST FOR USE OF AN ALTERNATE INSPECTION INTERVAL FOR CONTAINMENT BUILDING STRUCTURES (TAC NO. MD6897 AND MD6898)
Dear Sir or Madam:
By letter dated September 27, 2007, Entergy Operations, Inc. (Entergy, the licensee) proposed an alternative to the Arkansas Nuclear One, Unit 1 (ANO-1) and Unit 2 (ANO-2) Containment Inservice Inspection (CISI) interval. The American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME Code) (1992 Edition with 1992 Addenda and 2001 Edition with 2003 Addenda),Section XI, Subsection IWL-2421(b) permits an alternate inspection interval for containment building structures at sites having more than one containment building, provided certain conditions are met. The licensee submitted a Request for Alternative (ANO-CISI-001) proposing an alternative from the inspection requirements of the ASME Code pursuant to paragraph 50.55a(a)(3)(i) of Title 10 of the Code of Federal Regulations.
The U.S. Nuclear Regulatory Commission staff has reviewed the September 27, 2007, request and has determined additional information is required to complete our review. A request for additional information (RAI) is enclosed. The RAI was discussed with Robert Clark of Entergy on May 7, 2008, and it was agreed that a response would be provided within 45 days of receipt of this letter.
If you or your staff has any questions concerning the request, please contact me at (301) 415-1445.
Sincerely,
/RA/
Alan B. Wang, Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-313 and 50-368
Enclosure:
Request for Additional Information cc w/encl: See next page DISTRIBUTION:
PUBLIC RidsNrrPMAWang RidsOgcRp LPLIV Reading RidsAcrsAcnwMailCenter RidsNrrDorlDpr RidsRegion4MailCenter RidsNrrDorl BTitus RidsNrrLAGLappert RidsNrrLplIV HAshar ADAMS Accession Number: ML081360172 OFFICE LPL4/PM LPL4/LA LPL4/BC NAME AWang GLappert THiltz DATE 5/21/08 5/21/08 6/2/08 OFFICIAL RECORD COPY
REQUEST FOR ADDITIONAL INFORMATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION ARKANSAS NUCLEAR ONE, UNIT NOS. 1 AND 2 ENTERGY OPERATIONS, INC DOCKET NO. 50-313 AND 50-368 OPERATING LICENSE NO. DPR-51 AND NPF-6 By letter dated September 27, 2007 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML072910229), Entergy Operations, Inc. proposed an alternative to the Arkansas Nuclear One, Unit 1 (ANO-1) and Unit 2 (ANO-2) Containment Inservice Inspection (CISI) interval. The American Society of Mechanical Engineers Boiler and Pressure Vessel Code (1992 Edition with 1992 Addenda and 2001 Edition with 2003 Addenda),Section XI, Subsection IWL-2421(b) permits an alternate inspection interval for containment building structures at sites having more than one containment building, provided certain conditions are met. In order to complete the review, the U.S. Nuclear Regulatory Commission staff is requesting the following additional information.
- 1.
For all past surveillances, please provide pertinent information for both ANO-1 and ANO-2 post-tensioning systems which shows satisfaction of the applicable acceptance criteria for wire tests, corrosion protection medium evaluations, concrete inspections, and anchor assembly verification.
- 2.
Please provide the ANO-1 and ANO-2 tendon performance history of pre-stressing forces.
- 3.
What effect, if any, has the Steam Generator replacement had on ANO-1's IWL code required surveillance and inspection programs?
- 4.
Please provide pertinent records and evaluations, if any, of water intrusion for ANO-1 and ANO-2 post-tensioning ducts.