ML020940045
| ML020940045 | |
| Person / Time | |
|---|---|
| Site: | Limerick  |
| Issue date: | 05/28/2002 |
| From: | Gratton C NRC/NRR/DLPM/LPD1 |
| To: | Skolds J Exelon Generation Co |
| Gratton C, NRR/DLPM 415-1055 | |
| References | |
| TAC M90378, TAC M90509 | |
| Download: ML020940045 (5) | |
Text
May 28, 2002 Mr. John L. Skolds, President and Chief Nuclear Officer Exelon Nuclear Exelon Generation Company, LLC 200 Exelon Way, KSA 3-E Kennett Square, PA 19348
SUBJECT:
LIMERICK GENERATING STATION, UNIT NO. 2 - CORRECTION TO AMENDMENT NO. 63 (TAC NOS. M90378 AND M90509)
Dear Mr. Skolds:
On March 12, 2002, Exelon Generation Company (EGC), LLC, notified the U.S. Nuclear Regulatory Commission (NRC) staff by telephone of an error on page 3/4 3-61 of the Technical Specifications (TSs) for the Limerick Generating Station (LGS), Unit 2. On March 13, 2002, EGC discussed the history of the error in an e-mail to the NRC staff, which is summarized in the following paragraphs.
On August 27, 1993, the previous licensee (PECO Energy Company), requested changes to the LGS Units 1 and 2 TSs to reflect an expanded operating domain resulting from the proposed implementation of the Average Power Range Monitor - Rod Block Monitor Technical Specifications/Maximum Extended Load Line Limit Analysis (ARTS/MELLLA). Among other things, the licensee requested that the surveillance frequency of the Rod Block Monitor upscale and downscale trip function channel calibration be changed from semi-annual (SA) to each refueling outage (ERO). This information was located on TS page 3/4 3-61 for each unit. The licensee requested that, if approved, the implementation of the change be made on a plant-specific schedule; January 1994 for LGS Unit 1 and February 1995 for LGS Unit 2. On February 10, 1994, the NRC staff approved the amendment for LGS Unit 1 and stated in that letter that the approval for the LGS Unit 2 amendment would be delayed until the licensee was ready to implement the change to preclude any confusion that may occur when an amendment is approved but not promptly implemented.
On August 22, 1994, the licensee submitted a license amendment application for various changes to the LGS Units 1 and 2 TSs. One change, 94-33-0, affected control rod block instrumentation and modified information on TS page 3/4 3-61 for both units. At the time of the request, the NRC staff had not approved the ARTS/MELLA amendment for LGS Unit 2, therefore, the LGS Unit 2 TS page 3/4 3-61 included in August 22, 1994, license amendment application reflected the then-current surveillance frequency of SA for the Rod Block Monitor upscale and downscale trip function channel calibration.
On January 27, 1995, the NRC staff approved Amendment No. 48 to the LGS Unit 2 TSs, incorporating the ARTS/MELLLA amendment and changing the surveillance frequency of the Rod Block Monitor upscale and downscale trip function channel calibration from SA to ERO on LGS Unit 2 TS page 3/4 3-61.
J. Skolds On July 18, 1995, the NRC staff approved Amendment No. 63 to the LGS Unit 2, Facility Operating License No. NPF-85, incorporating, among other things, change request 94-33-0 for the control rod block instrumentation which affected LGS Unit 2 TS page 3/4 3-61. In this amendment, the August 22, 1994, version of LGS Unit 2 TS page 3/4 3-61 was used. This version of the page did not reflect the changes to the Rod Block Monitor upscale and downscale trip function channel calibration that the NRC staff approved for Unit 2 on January 27, 1995. As a result, the channel calibration surveillance frequency for the Rod Block Monitor upscale and downscale trip function was inadvertently changed from ERO back to SA.
No other parts of LGS Unit 2 TS page 3/4 3-61 were affected by this error.
I have enclosed a copy of the corrected LGS Unit 2 TS page 3/4 3-61 that reflects changes from all previous amendments. Please update your copy of the LGS Unit 2 TSs with this corrected page.
The NRC regrets any inconvenience this error may have caused.
Sincerely,
/RA/
Christopher Gratton, Sr. Project Manager, Section 2 Project Directorate I Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-353
Enclosure:
TS Page 3/4 3-61 cc w/encl: See next page
- See previous concurrence OFFICE PDI-2/PM PDI-2/LA EEIB/SC*
SRXB/BC*
OGC*
PDI-2/SC NAME C Gratton M OBrien E Marinos J Wermeil R Hoefling JClifford DATE 5/24/02 5/24/02 05/07/02 05/07/02 05/05 /02 5/28/02
Limerick Generating Station, Units 1 & 2 cc:
Vice President, General Counsel and Secretary Exelon Generation Company, LLC 300 Exelon Way Kennett Square, PA 19348 Manager Licensing-Limerick and Peach Bottom Exelon Generation Company, LLC Nuclear Group Headquarters Correspondence Control P.O. Box 160 Kennett Square, PA 19348 Site Vice President Limerick Generating Station Exelon Generation Company, LLC P.O. Box 2300 Sanatoga, PA 19464 Plant Manager Limerick Generating Station Exelon Generation Company, LLC P.O. Box 2300 Sanatoga, PA 19464 Regional Administrator, Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 Senior Resident Inspector U.S. Nuclear Regulatory Commission Limerick Generating Station P.O. Box 596 Pottstown, PA 19464 Chairman Board of Supervisors of Limerick Township 646 West Ridge Pike Linfield, PA 19468 Chief-Division of Nuclear Safety PA Dept. of Environmental Resources P.O. Box 8469 Harrisburg, PA 17105-8469 Library U.S. Nuclear Regulatory Commission Region I 475 Allendale Road King of Prussia, PA 19406 Dr. Judith Johnsrud National Energy Committee Sierra Club 433 Orlando Avenue State College, PA 16803 Vice President, Licensing and Regulatory Affairs Exelon Generation Company, LLC 4300 Winfield Road Warrenville, IL 60555 Director-Licensing Mid-Atlantic Regional Operating Group Exelon Generation Company, LLC Nuclear Group Headquarters Correspondence Control P. O. Box 160 Kennett Square, PA 19348 Correspondence Control Desk Exelon Generation Company, LLC 200 Exelon Way, KSA 1-N-1 Kennett Square, PA 19348 Chief Operating Officer Exelon Generation Company, LLC 4300 Winfield Road Warrenville, IL 60555 Senior Vice President, Nuclear Services Exelon Generation Company, LLC 4300 Winfield Road Warrenville, IL 60555
Limerick Generating Station, Units 1 & 2 cc:
Vice President, Mid-Atlantic Operations Support Exelon Generation Company, LLC 200 Exelon Way, KSA 3-N Kennett Square, PA 19348 Senior Vice President Mid-Atlantic Regional Operating Group Exelon Generation Company, LLC 200 Exelon Way, KSA 3-N Kennett Square, PA 19348 Regulatory Assurance Manager Limerick Generating Station Exelon Generation Company, LLC P.O. Box 2300 Sanatoga, PA 19464