ML19260E250
| ML19260E250 | |
| Person / Time | |
|---|---|
| Site: | Pilgrim |
| Issue date: | 01/10/1980 |
| From: | Ippolito T Office of Nuclear Reactor Regulation |
| To: | Andognini G BOSTON EDISON CO. |
| References | |
| NUDOCS 8002140266 | |
| Download: ML19260E250 (2) | |
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,,4 fo, UNITED STATES y y,e(3 h NUCLEAR REGULATORY COMMISSION
/-E WASHINGTON, D. C. 20555 JANUARY 1 0 1980 Docket No. 50-293 Mr. G. Carl Andognini Boston Edison Company 800 Boylston Street Boston, Massachusetts 01299
Dear Mr. Andognini:
In response to our letter of August 29, 1978, you provided information on your 1977 experience of control rods failing 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 recommended that you naintain an ongoing tabulation of any additional such events. To deteraine wnether or not the frequency of these events has changed for a given plant, we now request that you report your more recent experience. This ceport shoulu include the experience from the time of the last reported occurrence throujh 1979.
In addition please provide a summary of other control rod 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 reque.st for additional generic information is in accordance with the GA0 blanket clearance number B-180225 (R0536) which expires June 30, 1981.
Si ncerely,
d.c.c-4 Thomas K7Ippolito, Chief Operating Reactors Branch #3 Division of Operating Reactors 8 0 02140 '2 6C
Mr. G. Carl Andognini Boston Edison Company
-2 cc:
Mr. Paul J. McGuire Pilgrim Station Acting Manager Boston Edison. Company RFD #1, Rocky Hill Road Plymouth, Massachusetts 02360 Anthony Z. Roisman Natural Resources Defense Council 917 15th Street, N. W.
Washington, D. C.
20005 Henry Herrmann, Esquire Massachusetts Wildlife Federaticn 151 Tremont Street Boston, Massachusetts 02111 Plymouth Public Library North Street Plymouth, Massachusetts 02360 e
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