PNO-III-80-200, on 801031,plant Shutdown Due to High Vibrations on Bearing 3 on Low Pressure Stage of Main Turbine.Probably Caused by Turbine Imbalance.Turbine to Be Rebalanced
| ML18046A416 | |
| Person / Time | |
|---|---|
| Site: | Palisades  |
| Issue date: | 10/31/1980 |
| From: | Boyd D, Heishman R, Jorgensen B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| References | |
| PNO-III-80-200, NUDOCS 8102200673 | |
| Download: ML18046A416 (1) | |
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( e Da(.tober 3~, 1980 F'R~Ll~~I:,ARY N01 H l CA1 l ON or [ V[Nl OR UNUSUAL OCCURENCE--rrw-111-FC\\- 200 This reliminar9 notifica~ion constitutes EAR~Y notic~ of that is known by IE staff as of this a e.
Facility:
Consumers Power Company Palisades Nuclear Power Plant Docket No. 50-255 Covert, MI
Subject:
EQUIPMENT PROBLEMS RESULTING IN A PLANT SHUTDOWN IN EXCESS The plant was shut down at 6:00 a.m. on October 31, 1980, due to high vibrations on the No. 3 bearing on the low pressure stage of the main turbine.
The vibrations had gradually increased up to 9 mils at which point the decision was made to shut the unit down for rebalancing of the turbine.
The licensee estimates that the rebalancing efforts will be completed and the unit restarted within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />.
Neither the licensee nor Region III intend to issue a prEss release on this matter.
The State of Michigan will be notified.
Region III received notification of this matter from the Headquarters Duty Officer on October 31, 1980.
This information is current as of 9:00 a.m. (EDT) on October 31, 1980.
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Contact:
B. L. Jorgensen, SRI
/.J-1/_ 616./764-8971 Distribution:
Transmitted Chairman Ahearne Commissioner Gilinsky
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Transmitted:
MNBB /{).OS-W. J. Dircks, EDO C. Michelson, AEOD J. J. Fciuchard, PA N. M. Haller, MPA G. W. Kerr, OSP H. K. Shapar, ELD
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,_:,J'CC/j D. C. Boyd 384-2.546 R. F. kan 384-2540 H St.--tff...
Commissioner Hendrie Commissioner Bradford ACRS P. Bldg. /0,/3 H. R. Denton, NRR R. H. Vollmer, NRR R. J. Mattson, NRR
- 0. F. Ross, NRR
- 0. Eisenhut, NRR S. H. Hanauer W i 11 st e B 1 d g./ d. 0 0 J. G. Davis, NMSS T. E. Murley, RES S. J. Chilk, SECY C. C. Karrrne re r, CA (For Distribution)
IE:XOOS t/, 1)0 (IE:HQ Dist.
Landow (6 min/page J. J. Cum~ings, DIA MAIL
~inogue, SD IE:XOOS Document Mgt. Br. (For POR/l PRELIMINARY NOTIFICATION' 8102 2()o~ 73