ML19256C805
| ML19256C805 | |
| Person / Time | |
|---|---|
| Site: | Indian Point  |
| Issue date: | 04/11/1979 |
| From: | Bryan S, Nolan F NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| To: | |
| References | |
| PNO-79-078, PNO-79-78, NUDOCS 7910120480 | |
| Download: ML19256C805 (1) | |
Text
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W PRELIMINARY NOTIFICATION April 11, 1979 PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE--PNO-79-78 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:
Indian Point Unit 3 Indian Point, New York
Subject:
UNIT SHUTDOWN DUE TO A FEEDWATER VALVE MALFUNCTION At 4:00 p.m., on April 10, 1979, the Resident Inspector notified the Regional office that Indian Point Unit 3 had shutdown at 3:49 p.m., due to a feedwater regulating valve malfunction which had caused the reactor to trip as a result of low steam generator water level.
All systems functioned normally. The cause of the valve malfunction was a crack in the 1/4" instrument air line between the signal converter and the valve positioner.
Repairs were made and th> unit was critical at 9:05 p.m.
and synchronized to the grid at 11:39 p.m.
Media interest is expected because of the recent incident at Three Mile Island which was caused in part by feedwater system problems.
The State of New York was informed.
A press release is not planned by the licensee or NRC.
NRC, Region I, (Philadelphia) received notification of this occurrenc.
by telephone from the resident inspector at 4:00 p.m., April 10, 1979 Information was updated at 8:30 a.m., April 11, 1979.
Contact:
FNolan, IE x28019 SEBryan, IE x28019 Distribution:
Transmitted H St 2L,'o$~
Chairman Hendrie Commissioner Bradford S. J. Chilk, SECY Commissioner Kennedy Commissioner Ahearne C. C. Kammerer, CA Commissioner Gilinsky (For Distribution)
C Transmitted: MNBB 2 NS )
P. Bldg 2.' ll J. G. Davis, IE L. V. Gossick, ED0 H. R. Denton, NRR Region I
$2 tdt)
H. L. Ornstein, EDO R. C. DeYoung, NRR J. J. Fouchard, PA R. J. Mattson, NRR N. M. Haller, MPA V. Stello, NRR (MAIL)
R. G. Ryan, OSP R. S. Boyd, NRR J. J. Cummings, 0IA H. K. Shapar, ELD SS Bldg Slit 3 R. Minogue, SD W. J. Dircks, NMSS S. Levine, RES F
/ ='
PRELIMINARY NOTIFICATION 144/
084' 7910120 O
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