ML050830529
| ML050830529 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 03/28/2005 |
| From: | Chernoff M NRC/NRR/DLPM/LPD2 |
| To: | Singer K Tennessee Valley Authority |
| CHERNOff, M H, NRR/DLPM, 301-415-4018 | |
| References | |
| TAC MC3822 | |
| Download: ML050830529 (4) | |
Text
March 28, 2005 Mr. Karl E. Singer Chief Nuclear Officer and Executive Vice President Tennessee Valley Authority 6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801
SUBJECT:
BROWNS FERRY NUCLEAR PLANT, UNIT 1 - REQUEST FOR ADDITIONAL INFORMATION REGARDING TECHNICAL SPECIFICATION CHANGE REQUEST (TS-427) DELETION OF LOW PRESSURE COOLANT INJECTION MOTOR-GENERATOR SETS (TAC NO. MC3822)
Dear Mr. Singer:
By letter dated July 8, 2004, Tennessee Valley Authority (TVA) submitted a request for a Technical Specification change (TS-427) to remove the requirement to maintain an automatic transfer capability for the power supply to the low pressure coolant injection inboard injection and recirculation pump discharge valves.
Based on our review of your submittal, the U. S. Nuclear Regulatory Commission staff finds that a response to the enclosed request for additional information is needed before we can complete the review.
This request was discussed with Mr. Tim Abney of your staff on March 22, 2004, and it was agreed that a response would be provided within 30 days of the issuance of this letter.
If you have any questions, please contact me at (301) 415-4041.
Sincerely,
/RA/
Margaret H. Chernoff, Project Manager, Section 2 Project Directorate II Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-259
Enclosure:
Request for Additional Information cc w/encl: See next page
Enclosure Request for Additional Information TS-427, Deletion of Low Pressure Coolant Injection (LPCI) Motor-Generator Sets 1.
Table 2 on page E1-16 of Enclosure 1 to the Technical Specifications (TS) Change Request, provides the number of Emergency Core Cooling Systems (ECCS) (such as High Pressure Coolant Injection, Automatic Depressurization System (ADS), Low Pressure Core Spray (LPCS), and Low Pressure Coolant Injection (LPCI) actually available before the proposed change, and the number of systems available after the proposed change for the Recirculation Suction Line Break Loss of Coolant Accident (LOCA) concurrent with a single-failure. It is not clear how the number of ECCS available (such as 1LPCS, 3LPCI) before the change, and after the change have been determined for each single-failure case. Please discuss how the number of ECCS available have been determined.
2.
Table 3 on page E1-17 of Enclosure 1 to the Technical Specifications (TS) Change Request, provides the number of ECCS (such as ADS, 1LPCS, 1LPCI) actually available before the proposed change, and the number of systems available after the proposed change for the Recirculation Discharge Line Break LOCA concurrent with a single-failure. It is not clear how the number of ECCS available before the change, and after the change have been determined for each single-failure case. Please discuss how the number of ECCS available have been determined.
3.
Please confirm that the implementation of the subject TS change will not adversely impact the loading of the emergency diesel generator sets under LOCA and Loss Of Offsite Power operating conditions.
ML050803529 NRR-088 OFFICE PDII-2/PM PDII-2/LA PDII-2/SC NAME MChernoff BClayton MMarshall DATE 03/ 28 /05 03/ 28 /05 03/ 28 /05
Mr. Karl W. Singer BROWNS FERRY NUCLEAR PLANT Tennessee Valley Authority cc:
Mr. Ashok S. Bhatnagar, Senior Vice President Nuclear Operations Tennessee Valley Authority 6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801 Mr. Larry S. Bryant, General Manager Nuclear Engineering Tennessee Valley Authority 6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801 Mr. Michael D. Skaggs Site Vice President Browns Ferry Nuclear Plant Tennessee Valley Authority P.O. Box 2000 Decatur, AL 35609 General Counsel Tennessee Valley Authority ET 11A 400 West Summit Hill Drive Knoxville, TN 37902 Mr. John C. Fornicola, Manager Nuclear Assurance and Licensing Tennessee Valley Authority 6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801 Mr. Kurt L. Krueger, Plant Manager Browns Ferry Nuclear Plant Tennessee Valley Authority P.O. Box 2000 Decatur, AL 35609 Mr. Jon R. Rupert, Vice President Browns Ferry Unit 1 Restart Browns Ferry Nuclear Plant Tennessee Valley Authority P.O. Box 2000 Decatur, AL 35609 Mr. Robert G. Jones Browns Ferry Unit 1 Plant Restart Manager Browns Ferry Nuclear Plant Tennessee Valley Authority P.O. Box 2000 Decatur, AL 35609 Mr. Fredrick C. Mashburn Senior Program Manager Nuclear Licensing Tennessee Valley Authority 4X Blue Ridge 1101 Market Street Chattanooga, TN 37402-2801 Mr. Timothy E. Abney, Manager Licensing and Industry Affairs Browns Ferry Nuclear Plant Tennessee Valley Authority P.O. Box 2000 Decatur, AL 35609 Senior Resident Inspector U.S. Nuclear Regulatory Commission Browns Ferry Nuclear Plant 10833 Shaw Road Athens, AL 35611-6970 State Health Officer Alabama Dept. of Public Health RSA Tower - Administration Suite 1552 P.O. Box 303017 Montgomery, AL 36130-3017 Chairman Limestone County Commission 310 West Washington Street Athens, AL 35611