ML19221A694
| ML19221A694 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 05/29/1979 |
| From: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | Stewart W FLORIDA POWER CORP. |
| References | |
| NUDOCS 7907030095 | |
| Download: ML19221A694 (2) | |
Text
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on ancoq'o, UNITED STATES
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NUCLEAR REGULATORY COMMISSION
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REGION 11 pr y g
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ATL ANT A, GE ORGI A 30303 "g..... o W E 91979 In Reply Refer To:
RII:JPO C -302 50 Florida Power Corporation Atto:
W. P. Stewart, Manager Nuclear Operations P. O. Box 14042, Hail Stop C-4 St. Petersburg, Florida 33733 Gentlemen:
This Information Notice is provided as an early notification of a possibly It is expected that recipients will review the significant matter.
information for possible applicability to their facilities. No specific action or response is requested at this time.
If further NRC evaluations so indicate, an IE Circular or Bulletin will be issued to recon =end or request specific licensee actions.
If you have questions regarding this matter, please contact the Director of the appropriate NRC Regional Office.
Sincerely, d
Q James P. O'Reilly Director
Enclosure:
Information Notice No. 79-13 w/ Enclosures 273 102 7 9 07 0 3 0ff3T
Florida Power Corporation -
cc w/ enc 1:
G. P. Beatty, Jr.
Nuclear Plant Superintendent Post Office Box 1228 Crystal River, Florida 32629
/
273 103
UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND EhTORCDENT WASHINGION, D.C.
20555 May 29, 1979 II Information Eotice No. 79-13 INDICATION OF 14N WATER LEVEL IN TEI OYSTER CREfK REACTOR Suzunary A loss of feedvater tranrisnt at the Oyster Creek facility on my 2,1979, resulted in a significant reduction in water inventory within the reactor core shroud area as seasured by one set of water level instruments (triple lov level), while the remainint level instruments, sensing from the reactor an=1us area indicated water levels above any protective feature setpoint (Figure 1).
The water level within the core shroud area was reduced below the " triple lov level" setpoint of 4-feet, 8-inches above the top of the fuel.
Subsequent analysis by the licensee has determined that the minimum collapsed water level (solid, without steam voids) over the top of the fuel was I to 1-1/2 feet.
Coolant earple analyses and offgas release rates indicate no foal dann e occurred.
General Oyster Creek is a non-jet pump BVR with licensed power of 1930 w t.
The plant was first made critical my 3,1969.
Status Before Transient Operating at near full power with the main parameters at levels as followa:
1895 We power level 79" Yarvsy (13'4" over top of fuel) reactor water level 1020 psig reactor pressure 7.1xlO6 f/hr feedlov 14.8x10I. spm recirculation flow rate (4 pumps) 12 paid core y
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Equipment Out of Service (005)
~ ~" ~ E l J lN DUPLICATE DOCUMENT "D" recire purup 005 due to seal "B" startup transformer 005 for Entire document previously entered into system under:
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