ML19262C447
| ML19262C447 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 01/10/1980 |
| From: | Ippolito T Office of Nuclear Reactor Regulation |
| To: | Parris H TENNESSEE VALLEY AUTHORITY |
| References | |
| NUDOCS 8002130303 | |
| Download: ML19262C447 (2) | |
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- O 1980 Docket flos. 50-259, 50-260 and 50-296 fir. Hugh G. Paris fianager of Power Tennessee Valley Authority 500A Chestnut Street, Tower II Chattanooga, Tennessee 37401
Dear Mr. Paris:
In response to our letter of August 29, 1978, you provided information on your 1977 experience of control rods f ailing to fully insert. We evaluated your response along with those provided by other BWR owners. We concluded tnat such events are general and that the frequencies of occurrence vary among the BWRs, apparently because of different maintenance programs.
Our August 29, 1978 letter recormendec that you maintain an ongoing tabulation of any additional such events. To determine whether or not the frequency of these events has changed for a giver. ;1 ant, we now request that you report your more recent experience. This re: ort should include the experience from the time of the last reported occurrer.ce through 1979.
In addition please provide a summary of other control roc drive malfunctions, such as unlatchings, for the same time period.
The information should be provided within 90 days. For each event, identify the number of rods not fully inserted, the position of the rods, the cause for failure to fully insert, and any related maintenance activities..
This request for additional generic infonnation is in accordance with the GA0 blanket clearance number B-180225 (R0536) which expires June 30, 1981.
Si ncerely,
-qg Y
d Thomasig/Ippolito, Chief Operating Reactors Branch #3 Jivision of Operating Reactors vu ou 8002180 b
Mr. Hugh G. Parris Tennessee Valley Authority cc:
H. S. Sanger, Jr., Esquire General Counsel Tennessee Valley Authority 400 Commerce Avenue E llB 33 C Knoxville, Tennessee 37902 Mr. Ron Rogers
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Tennessee Valley Authority 400 Chestnut Street, Tower II Chattanooga, Tennessee 374Cl Mr. E. G. Beasley Tennessee Valley Authority 400 Commerce Avenue W 10C 131C Knoxville, Tennessee 379C2 Robert F. Sullivan U. S. Nuclear Regulatory Cornission P. O. Box 1863 Decatur, Alabama 35602 Athens Public Library South and Forrest Athens, Alabama 35611