ML091480021
| ML091480021 | |
| Person / Time | |
|---|---|
| Site: | Limerick  |
| Issue date: | 05/28/2009 |
| From: | Peter Bamford Plant Licensing Branch 1 |
| To: | Chernoff H Plant Licensing Branch 1 |
| Bamford, Peter J., NRR/DORL 415-2833 | |
| References | |
| TAC ME0742, TAC ME0743, TAC ME0744, TAC ME0745, TAC ME0746, TAC ME0747, TAC ME0748, TAC ME0749, TAC ME0750, TAC ME0751 | |
| Download: ML091480021 (4) | |
Text
May 28, 2009 MEMORANDUM TO: Harold K. Chernoff, Chief Plant Licensing Branch I-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation FROM:
Peter Bamford, Project Manager /ra/
Plant Licensing Branch I-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation
SUBJECT:
LIMERICK GENERATING STATION, UNIT NOS 1 AND 2 - ELECTRONIC TRANSMISSION, DRAFT REQUEST FOR ADDITIONAL INFORMATION REGARDING THIRD INTERVAL INSERVICE TESTING RELIEF REQUESTS (TAC NOS. ME0742 THROUGH ME0751)
The attached draft request for additional information (RAI) was sent by electronic transmission on May 26, 2009, to Mr. Thomas Loomis, at Exelon Generation Company, LLC (Exelon). This draft RAI was transmitted to facilitate the technical review being conducted by the Nuclear Regulatory Commission (NRC) staff and to support a conference call with Exelon in order to clarify certain items in the licensee=s submittal. The draft RAI is related to Exelon=s submittal dated February 18, 2009, regarding relief requests associated with the third inservice testing interval. The draft questions were sent to ensure that the questions were understandable, the regulatory basis for the questions was clear, and to determine if the information was previously docketed. Additionally, review of the draft RAI would allow Exelon to determine and agree upon a schedule to respond to the RAI. This memorandum and the attachment do not represent an NRC staff position.
Docket Nos. 50-352 and 50-353
Enclosure:
As stated
May 28, 2009 MEMORANDUM TO: Harold K. Chernoff, Chief Plant Licensing Branch I-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation FROM:
Peter Bamford, Project Manager /ra/
Plant Licensing Branch I-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation
SUBJECT:
LIMERICK GENERATING STATION, UNIT NOS 1 AND 2 -
ELECTRONIC TRANSMISSION, DRAFT REQUEST FOR ADDITIONAL INFORMATION REGARDING THIRD INTERVAL INSERVICE TESTING RELIEF REQUESTS (TAC NOS. ME0742 THROUGH ME0751)
The attached draft request for additional information (RAI) was sent by electronic transmission on May 26, 2009, to Mr. Thomas Loomis, at Exelon Generation Company, LLC (Exelon). This draft RAI was transmitted to facilitate the technical review being conducted by the Nuclear Regulatory Commission (NRC) staff and to support a conference call with Exelon in order to clarify certain items in the licensee=s submittal. The draft RAI is related to Exelon=s submittal dated February 18, 2009, regarding relief requests associated with the third inservice testing interval. The draft questions were sent to ensure that the questions were understandable, the regulatory basis for the questions was clear, and to determine if the information was previously docketed. Additionally, review of the draft RAI would allow Exelon to determine and agree upon a schedule to respond to the RAI. This memorandum and the attachment do not represent an NRC staff position.
Docket Nos. 50-352 and 50-353
Enclosure:
As stated DISTRIBUTION:
Public RidsNrrPMPBamford LPL1-2 R/F MOrenak, NRR WPoertner, NRR Accession No.: ML091480021
- via memorandum OFFICE LPL1-2/PM CPTB/BC NAME PBamford JMcHale*
DATE 5/28/2009 05/13/2009 OFFICIAL RECORD COPY
DRAFT Enclosure REQUEST FOR ADDITIONAL INFORMATION REGARDING RELIEF REQUESTS ASSOCIATED WITH THE THIRD INSERVICE TESTING INTERVAL LIMERICK GENERATING STATION, UNIT NOS. 1 AND 2 DOCKET NOS. 50-352 AND 50-353 By letter dated February 18, 2009 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML090500720), Exelon Generation Company, LLC, submitted a set of relief requests associated with the third Inservice Testing (IST) interval for Limerick Generating Station (LGS), Units 1 and 2. The applicable code for the third interval IST program is the American Society of Mechanical Engineers (ASME) [Operation and Maintenance] OM Code, 2004 edition.
The Nuclear Regulatory Commission (NRC) Staff has been reviewing the submittal and has determined that additional information is needed to complete its review.
Request for Relief 11-PRR-1 Rev. 1:
- 1. A replacement for Code Case OMN-9, Code Case OMN-16, is included in the OMB-2006 addenda, with applicability specified that includes the proposed 3rd IST interval code of record, (ASME OM Code, 2004 edition). This code case has been approved for use by the OM Committee with a new expiration date of June 1, 2009 and provides more up-to-date references and requirements. Please explain why Code Case OMN-9 was requested to be used instead of Code Case OMN-16, or provide a revised request that references Code Case OMN-16.
Request for Relief GVRR-5 Rev. 3:
- 1. Please discuss why the requirements of ISTC 5221(c) can not be implemented and why relief is not required from the requirements of ISTC 5221(c).
- 2. Please discuss why the requirements of ISTC 5222 can not be utilized for testing of the identified check valves.
Request for Relief 47-VRR-2 Rev. 0:
- 1. Please provide a discussion of why relief is required from the identified ASME OM Code requirements for each component identified.
- 2. The relief request states that reverse flow verification of 47-1(2)-38 is demonstrated by normal control rod motion. Please clarify how scram insertion time testing demonstrates the valve close function required by the ASME OM Code.
- 3. The relief request states that testing is performed with reactor coolant system pressure greater than or equal to 950 [pounds per square inch gauge] psig. Please address how the requirements of ISTC 3100 and ISTC 3310 will be met.