ML19256C977
| ML19256C977 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 06/21/1979 |
| From: | Bryan S NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| To: | |
| References | |
| PNO-79-177, NUDOCS 7910150807 | |
| Download: ML19256C977 (1) | |
Text
?fyd PRELIMINARY NOTIFICATION June 21, 1979 PRELIMINARY NOTIFICATION OF EVEi1T OR UNUSUAL OCCURRENCE--PNO-79-177 This preliminary notification constitutes EARLY notice of event of POSSIBLE safety or public interest significance.
The information presented is as initially received without verification or evaluation and is basically all that is known by IE staff on this date.
FACILITY:
Arkansas Power and Light Company Arkansas Nuclear One (AN0), Unit 1 Russellville, Arkansas Docket No. 50-313
SUBJECT:
INADVERTENT INITIATION OF EMERGENCY FEEDWATER SYSTEM AND TRIP 0F THE STEAM DRIVEN EMERGENCY FEEDWATER PUMP On June 21, 1979, during low power physics testing with the plant at normal operating conditions, an inadvertent initiation of the Emergency Feedwater (EFW)
System occurred and both the steam driven and electric motor driven pumps started.
The steam driven pump subsequently tripped due to causes unknown at this time.
Inadvertent initiation of the EFW is believed to have resulted when the operating range level channel output signal was manually transferred to the alternate level channel.
A press release is not planned.
Region IV was initially notified of this event on June 21, 1979 by the IE Resident Inspector.
Contact:
S. Bryan, IE x28019; G. Klingler, IE x28019 Di stribution:
Transmitted H St I:; E.w Chairman Hendrie Commissioner Bradford S. J. Chilk, SECY Commissioner Kennedy Commissioner Ahearne C. C. Kammerer, CA Commissioner Gilinsky ACRS (For Distribution)
Transmitted: MNBBI. c 1 P. B1dg L Mi V. Stello, IE L. V. Gossick, EDO H. R. Denton, NRR Region rv
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H. L. Ornstein, EDO R. C. DeYoung, NRR J. J. Fouchard, PA R. J. Mattson, NRR N. M. Haller, MPA R. S. Boyd, NRR (MAIL)
R. G. Ryan, OSP SS Bldg (,' ri, J. J. Cummings, 01-A H. K. Shapar, ELD W. J. Dircks, NMSS R. Minogue, SD S. Levine, RES PRELIMINARY NOTIFICATION 4910150$Ql
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