ML19256C921
| ML19256C921 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 07/11/1979 |
| From: | Bryan S, Klinger G, Nolan F NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| To: | |
| References | |
| PNO-79-231, NUDOCS 7910150750 | |
| Download: ML19256C921 (1) | |
Text
t-PRELIMINARY NOTIFICATION July 11, 1979 PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE--PNO-79-231 This preliminary notification constitutes EARLY notice of an 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 (ANO), Unit 1 Russellville, Arkansas Docket No. 50-313
SUBJECT:
ANO UNIT 1 TURBINE VIBRATIONS On July 10, 1979, Unit I was shutdown at 6:52 a.m. from 21% power due to abnormal turbine vibrations.
The initial investigation has not revealed the source of the vibrations.
The licensee is now estimating that the plant shutdown could be up to three (3) weeks.
A press release is planned to be issued by the licensea if the shutdnwn exceeds one (1) week.
Region IV was initially notified of this event on July 10, 1979 by the Unit One Control Room operator.
Contact:
G. Klingler IE, x28019 F. Nolan IE, x28019 S. Bryan IE, x28019 Distribution:
Transmitted H St Chairman Hendrie Commissioner Bradford S. J. Chilk, SECY Commissioner Kennedy Commissioner Ahearne C. C. Kammerer, CA Commissioner Gilinsky ACRS (For Distribution)
Transmitted:
MNBB P. Bldg 5* O V. Stello, IE L. V. Gossick, E00 H. R. Denton, NRR Region H.
L. Ornstein, EDO R. C. DeYoung, NRR J. J. Fouchard, PA R. J. Mattson, NRR N. M. Haller, MPA D. Vassallo, NRR (MAIL)
R. G. Rvan, OSP