ML19209C375
| ML19209C375 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 09/13/1979 |
| From: | Counsil W NORTHEAST UTILITIES |
| To: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| NUDOCS 7910150192 | |
| Download: ML19209C375 (1) | |
Text
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t J..:n ;;:,. ll::' 7 Eeptember 13, 1979 Dogket No. 50-336 Mr. Boyce H. Grier, Director Region I Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission 631 Park Avenue FJng of Prussia, PA 19406
References:
(1)
B. H. Crier letter to W. G. Counsil datel July 26, 1979.
(2)
W. G. Counsil letter to B. H. Grier dated August 29, 1979.
Gentlemen:
Millstone Nuclear Power Station, Unit No. 2 I&E Bulletin #79-06C In Reference (1), Northeast Nuclear Energy Company (NNECO) was requested to pro-vide additional information relating to Reactor Coolant Pump (RCP) operation under various transient conditions.
In response to that request, Reference (2) was provided to address Items 1 through 3 of Reference (1).
In response to Item 4, please be advised that applicable plant procedures have been revised in accordance with the guidelines provided in CEN-ll5P.
Specifically, the revised procedure requires plant operators to insure that all control rods have been fully inserted for at least five (5) seconds before tripping the RCP's.
This feature insures that the results presented in current non-LOCA safety analyses remain valid.
Instructions to plant operators regardin3 RCP t. ripping remain in the immediate action section of the applicable procedures.
As you are aware, additional efforts are in progress to ascertain if RCP operabilit y need be considered to insure conformance with Appendix K.
We tr mt you find this information responsive to the Reference (1) request.
Very truly yours, NORTHEAST NUCLEAR ENERGY COMPANY
{}l, W. U. Counsil
})kb 2 Vice President 7 910150 l 9 z--