ML19291C192
| ML19291C192 | |
| Person / Time | |
|---|---|
| Issue date: | 01/10/1980 |
| From: | Baskedas D NRC OFFICE OF NUCLEAR REGULATORY RESEARCH (RES) |
| To: | Ahearne J NRC COMMISSION (OCM) |
| References | |
| NUDOCS 8001230099 | |
| Download: ML19291C192 (1) | |
Text
,
-m pn arGO UNITED STATES
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' NUCLEAR REGULATORY COMMisslON
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WASHINGTON, D. C. 20555 r
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[ [ ^ ' V,,V JAN 101999 MEMORANDUM FOR:
Chairman Ahearne FROM:
Demetrios L. Basdekas Experimental Fast Reactor Safety Research Branch, RES
SUBJECT:
SAFETY IMPLICATIONS OF CONTROL SYSTEM FAILURES AND PLANT DYNAMICS Appendix 19 of the report of the President's Commission on the Accident at TMI contains the following statement on page 35:
"This PORV failure is a clear indication of the need for better configuration control and interface coordination.
It provides a good opportunity for a failure mode and effects analysis FMEA)."
(emphasis added).
Furthermore the conclusion of Appendix 19 on page 3 is:
"The TMI-2 accident would probably not have progressed beyond a severe feedwater transient, had the PORV been recognized and treated as a safety-related component."
I am citing these two points for your convenience and in support of statements and recommendathas I have made on the subject matter pre-viously, including my memorandum to you of December 20, 1979.
Mm d.. M - k Demetrios L. Basdekas Experimental Fast Reactor Safety Research Branch, RES cc: Commissioner Gilinsky Commissioner Kennedy Commissior.er Hendrie Commissioner Bradford L. V. Gossick, ED0 M. W. Carbon, ACRS 179i 251 W. Kerr, ACRS R. J. Budnitz, RES H. R. Denton, NRR R. Minogue, OSD OGC OPE 80 012 30 C 'I 9 SECY #