ML19281A068
| ML19281A068 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 02/08/1979 |
| From: | Reid R Office of Nuclear Reactor Regulation |
| To: | Stewart W FLORIDA POWER CORP. |
| References | |
| NUDOCS 7903060014 | |
| Download: ML19281A068 (3) | |
Text
h*,[sG"I4,*i UNITED STA rES e
3h 4
NUCLEAR REGULATORY COMMISSION 5
I,U' " '$[ $
' %. n WASHINGTON, D. C. 20555
+ y.Q&.
i+~'k/-f
,' 'A3 ^t February 8, 1979 e
- ...j, j' Docket No. 50-302 Mr. W. P. Stewart Director, Power Production Florida Power Corporation P. O. Box 14042, Mail Stop C-4 St. Petersburg, Florida 33733
Dear Mr. Stewart:
We have reviewed your submittal of January 12, 1979 regarding the proposed Long Term ECCS Mcdification for the Snall Break LOCA for Crystal River Unit 3.
The additional informatian identified in the enclosure is necessary to complete our revie...
Ycu are requested to provide this information within 20 days from the date of this letter.
Sincerely, gla A,.K_w/
p Robert W. Reid, Chief Operating Reactors Branch #4 Division of 0;:erating Reactors
Enclosure:
Request for Additional Information cc w/ enclosure:
See next page a
790306cc/f V
(5 5-'
Ficriaa Power Ccrporation
.cc:
!!r. S. A. Brandimore Vice Presi' dent and General Counsel P. O. Box 14042 St. Petersburg, Florida 33733 Mr. Robert B. Borsum Babcock & Wilcox Nuclear Power Generation Division Suite 420, 7735 Old Georgetown Ro'ad Bethesda, Maryland 200i4 Crystal River Public Library Crystal River, Florida 32529 Mr. Jack Shreve Office of the Public Counsel Recm 4, Holland Suilding Tallahassee, Florida 32304 G
9
Eaclosure Recuest for Additional Information 1.
Please document the qualifications to which your procosed modification will,be designed and tested.
You should cite codes and standards where applicable.
Specific reference to sections of your FSAR is acceptable.
2.
Active Ccmponent Failures 1, 2 and 4 require a different operator action than 3.
Will the operator take the same action if any of these four failures occur or must. he evaluate the cause of loss of high pressure injection (HpI) flow before taking action?
If the operator takes the same action in all cases cescriae what thai is and demonstrate that correcting for an Active Ccnpone'nt.
Failure that may not exist does r.ot cause problens.
F! hat indications are available for the operator to assess the Active Cenpenent Failure.
3.
Is it necessary that any flow paths in the nakeuo and purification sys:Em be isolated af ter a LOCA :c insure adequate '?: ficw? If so, pro !de assurance that this isciation will cccur for the :cstulated srail break LOCA, concurrent icss of offsite cov.er and a sincie ra;iure.
a.
Adcress the pcssibility of tne HPI pungs exceecing runout conditions when the systen is in its nininum resistance configuration (appar-ertly ' HFI, lines with 1 cump).
5.
You are requested to provide a ccmmitment to verify, by measurement, HPI flow rates prior to plan: startup or within seven days af ter the mcdifications have been ccepleted, whichever occurs first.
5.
You indicated an installation schecule of '31 ceeks frcm I4RC acceptance' in your let:er of tiovember 17, 1975 and again on January 12, 1979.
Your current exemption from 10 CFR 50.46(a) regarding this matter terminates at pour next refueling outage.
Therefore, you should make every effort to install an approved modi-fication by that time.
.