ML18033B178
| ML18033B178 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 02/12/1990 |
| From: | Black S Office of Nuclear Reactor Regulation |
| To: | Kingsley O TENNESSEE VALLEY AUTHORITY |
| References | |
| NUDOCS 9002230076 | |
| Download: ML18033B178 (6) | |
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Docket No. 50-260 UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 February 12, 1990 Mr. Oliver D. Kingsley, Jr.
Senior Vice President, Nuclear Power Tennessee Valley Authority 6N 38A Lookout Place 1101 Mar ket Street Chattanooga, Tennessee 37402-2801
Dear Mr. Kingsley:
SUBJECT:
REQUEST FOR INFORMATION REGARDING THE POWER ASCENSION PROGRAM OF BROWNS fERRY NUCLEAR PLANT, UNIT 2
References:
(a)
Letter from R. Gridley to NRC dated February 14, 1989.
(b)
Letter from M. Ray to NRC dated September 8, 1989.
(c)
Letter from S. Black to 0. Kingsley dated September 22, 1989.
(d)
Letter from M. Ray to NRC dated October 30, 1989.
After reviewing the aforementioned documents, and, discussions with TVA personnel, we have come to the conclusion that a meeting with TVA may be necessary for us to fully understand the proposed PAT Program for BFN, Unit 2.
However, to make such a meeting as fruitful as possible, the NRC staff will require some additional information.
Therefore, you are requested to provide us within the next thirty days a formal response which addresses the following questions and/or concerns:
1.
Since the Browns Ferry Final Safety Analysis Report (FSAR) is currently being updated and may not completely represent the reconstituted design basis for.Unit 2, the PAT Program should be re-evaluated by comparing it against forthcoming changes to the updated FSAR (e.g., Section 13.10).
2.
Does the PAT Program rely on any other source documents affected by changes in the design basis2 Have these been re-evaluated for their impact upon the PAT Program2 7b <OORP2b0~
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In Reference (a), Tennessee Valley Authority (TVA) provided the U.S. Nuclear Regulatory Commission (NRC) with a description of their Power Ascension Testing (PAT) Program for the Browns Ferry Nuclear (BFN) Plant, Unit 2.
Additionally, "Management Hold Points" based upon the guidance of Regulatory Guide (RG) 1.68, "Initial Test Program for Water Cooled Nuclear Power Plants," were incorporated into the PAT Program by Reference (b).
The NRC staff, in RefeI ence. (c), requested further information about the tests and requirements associated with each of the TVA hold points.
TVA responded to the staff's request with Reference (d).
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Mr. Oliver D. Kingsley, Jr.
3.
Much of the Unit 2 Restart Test Program (RTP) was completed last
- Summer, in 1989.
The current TVA schedule projects a restar t date for the early part of Summer 1990.
During the year in between, a considerable number of significant modifications have been or will be accomplished.
TVA should explain their basis for not repeating applicable RTP tests for the affected
- systems, given the recent regulatory history of post-modificatian testing problems at BFN, Unit 2.
Furthermore, how is TVA assuring that the safety
.systems of BFN, Unit 2, are being maintained in a condition consistent with the as-tested condition considering the extended period of time since the RTP was completed.
4.
Except for Reference (b), which infers that RG 1.68 was the basis for the establishment of "Management Hold Points", there is no apparent correlation between the guidance of RG 1.68 and the PAT Program proposed for BFN, Unit 2.
TVA should identify any significant differences between RG 1.68 (including its supplements) and the PAT Program, and provide appropriate explanations for these differences.
Upon our receipt of the requested information, you will be contacted by the Project Manager to arrange a suitable meeting schedule.
Should you need any clarification regarding our request please contact me or Thierry Ross at (301) 492-0767.
The reporting and recordkeeping requirements contained in this letter affect fewer than ten respondents; therefore, OMB clearance is not required under P. L.96-511.
Sincerely, Suzanne Alack, Assistant Director for Projects TVA Projects Division Office of Nuclear Reactor Regulation cc:
See next page
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'Mr. Oliver D. Kingsley, Jr.
3.
Much of the Unit 2 Restart Test Program (RTP) was completed last
- Summer, in 1989.
The current TVA schedule projects a restart date for the early part of Summer 1990.
During the year in between, a considerable number of significant modifications have been or will be accomplished.
TVA should explain their basis for not repeating applicable RTP tests for the affected
- systems, given the recent regulatory history of post-modification testing problems at BFN, Unit 2.
Furthermore, how is TVA assuring that the safety systems of BFN, Unit 2, are being maintained in a condition consistent with the as-tested condition considering the extended period of time since the RTP was completed.
4.
Except for Reference (b), which infers that RG 1.68 was the basis for the establishment of "Management Hold Points", there is no apparent correlation between the guidance of RG 1.68 and the PAT Program proposed for BFN, Unit 2.
TVA should identify any significant differences between RG 1.68 (including its supplements) and the PAT Program, and provide appropriate explanations for these differences.
Upon our receipt of'he requested information, you will be contacted by the Project Manager to arrange a suitable meeting schedule.
Should you need any clarification regarding our request please contact me or Thierry Ross at (301) 492-0767.
The reporting and recordkeeping requirements contained in this letter affect fewer than ten respondents; therefore, OMB clearance is not required under P. L.96-511.
Sincerely, Distribution
~n NRC PDR Local PDR BFN Reading ADSP Reading D. Crutchfield T.
Quay B.
D. Liaw S. Black R. Pierson B. Wilson M. S. Little LA G.
Gears T. Ross D. Moran OGC B. Grimes E. Jordan ACRS(10)
GPA/CA Original signed by Suzanne Black, Assistant Director for Projects TVA Projects Division Office of Nuclear Reactor Regulation FC:NRR:
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