ML19290C410
| ML19290C410 | |
| Person / Time | |
|---|---|
| Issue date: | 09/24/1979 |
| From: | Angelo J Office of Nuclear Reactor Regulation |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| REF-GTECI-A-17, REF-GTECI-SY, TASK-A-17, TASK-OR NUDOCS 8001110320 | |
| Download: ML19290C410 (1) | |
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SEP 2 41979 Generic Task No. A-17 MEMORANDUM FOR: Distribution FROM:
J. Angelo, Task Manager, Generic Task No. A-17 THIRD INTERIM REPORT BY SANDIA LABORATORIES ON SYSTEMS
SUBJECT:
INTERACTION Enclosed is a copy of the Third Interim Report by Sandia Laboratories on systems interaction. This report presents primarily the results of the fault tree analysis on the reactor coolant boundary (RCPB) safety function and the assess-ment of the Standard Review Plan (SRP) for potential interactions that were revealed by the task. The report also oescribes the techniques that were used to analyze the fault trees. By copy of this memorandum, persons on the distri-bution are invited to make their coments and concerns to the Task Manager.
In particular, the 'oranch chiefs of the technical branches within the NRC who have functional responsibility for the plant systems covered by this particular A draft report are requested to make their coments on the interim report.
final report is scheduled for completion by Sandia Laboratories on or about 31, 1979 and will cover all three safety functions: reactor coolant December Since the pressure boundary, decay heat removal, and reactor subcriticality.
final report will be very much along the lines of this interim report, it is essential that your coments be made available by October 15, 1979 so that we can coordinate these comments and convey the information to Sandia Laboratories in time to affect the structure of the draft final report.
The report is consisely written and any effort to further sumarize its contents However, a few additional remarks may be appro-would serve no useful purpose.
priate. The report presents a brief summary of the scope of the task and the status of work accomplished up to the date of the report which is August 31, The report also sumarizes the fault tree development and the techniques 1979.
Finally, the report sumarizes the assessment of for analyzing the fault tree.
the Standard Review Plan and the exemplary nuclear facility (Watts Bar Nuclear Plant) for the potential systems interaction with regard to the RCPB safety function.
J. Angelo, Task Manager Generic Task No. A-17
Enclosure:
Tnfrd Interim Report by Sandia Laboratories on Systems 1732 357 Interaction dated August 31, 1979 Mr. Mark Wisenberg (2) cc:
Tennessee Valley Authority 8001210,3yo 303 Power Building Chattanooga, Tennessee 37401