ML18227B238
| ML18227B238 | |
| Person / Time | |
|---|---|
| Site: | Turkey Point  |
| Issue date: | 08/10/1977 |
| From: | Robert E. Uhrig Florida Power & Light Co |
| To: | Stello V Office of Nuclear Reactor Regulation |
| References | |
| Download: ML18227B238 (8) | |
Text
NR+ FOR&.I 195 I2-78 I U.S. NUCLEAR REGULATORY IMISSION IJRC DISTRIBUTION FQR PART 50 DOCKET MATERIAL DISTRIBUTION AFTER ISSUANCE OF OPERATING LICENSE DOCKET NUMBE~
~@$5 FILE NUMBER TO:
Mr. Victor Stello FROM:
Florida Power G Light Co.
Miami, ZL 33101 Robert 8. Uhrig DATE OF DOCUMENT 8/10/77 DATE RECEIVED 8/15/77 ETTE R OR IGINAL COP Y 5fNOTOR IZED gg NC I.ASS IF I E D PROP INPUT FORM NUMBER OF COPIES RECEIVED II Si ned-DESCRIPTION Ref:
August 5, 1977 letter from Florida Powe G Light Co. requesting an amendment to the Unit 3 operating license 3 DPR-31 which would allow operation until the next scheduled re-fueling outage prior to performing an inspecti of the steam. generators (L-77-246) which will be based on the program described in applicant letter of Juneel6, 1977 (1-77-179).
Notarized on8/8i/igO/77.
ENCLOSURE
@@0%LBIK PLANT NAME:
Turkey Poiht Unit 3 VT 8/13/77 (3-P)
Otj SAFETY BRANCH CHIEF:
7 FOR ACTION/INFO RMATION G FILE INTERNALD IST R I8UTION I
G E (2)
OELD HANAUER CHECK STELLO EISENHUT SHAO BAER BUTLER GRIMES J.
COLLINS LPDR:
TIC NSIC 16 CYS ACRS'SENT CATE 0 EXTERNALDISTRIBUTION CONTROL NUMBER p,qvqi
lb Il
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P. O. BOX 0)3100, MIAMI, FLORIDA 33101
'LORIDA POWER & LIGHT COMPANY August 10, 1977 L-77-250 Director of Nuc1ear Reactor Regulat.ion Attention:
Mr. Victor Stello, Director Division of Operating. Reactors U.
S. Nuclear Regulatory Commission Washington, D.C.
20555
Dear Mr. St.ello:
Re:
Turkey Point Unit No.
3 Docket No. 50-250 Proposed Amendment to Operatin License DPR-31
'siW~ I Mls 1 gp~IOP K On August 5, 1977 Florida Power S Light Company requested an amend-ment to the Unit 3 operating license which would allow opexation until the next scheduled refueling outage, prior to performing an inspection of the steam generators (L-77-246).
The results of the steam generator inspections performed recently on other units indi-cate that certain, operating restrictions axe appropriate for Unit 3.
Florida Power 6 Light Company therefore requests the following license modification as a supplement to our request of August 5, 1977:
Steam Generator 0 eration 1.
Primary to secondary leakage through the steam generator tubes shall be limited to 0.3 gpm-per steam generator.
With any steam generator tube leakage greater than this limit, the reactor shall be brought to the cold'hutdown condition within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
The leaking tube(s) shall be evaluated and plugged prior to resuming power operation.
2.
The concentration of radioiodine in the primary coolant shall be limited to 1 microcurie/gram during normal operation and to 30 micxocuries/gram during power transients.
An operating restriction on the frequency of the incidence of leaking tubes was also evaluated.
It was determined that such a restriction would not be appropriate for the following reasons:.
1)
The safety evaluation performed for the return to operation of Unit 4 did not rely on this restriction in coming t'o the conclusi.'on that return to operation did not involve a.
safety concern.
HELPING BUILD FLORIDA
ll il
~ S
Mr. Victor Stello L-77-250 Page 2
2)
Present.
reporting procedures provide the NRC ample oppor-tunity to review steam generator tube plugging trends.
3)
The two tube leaks within twenty days criterion is an inappropriate method of detecting trends of the incidence of leaking steam generator tubes and has proven to be excessively restrictive to the operation of other units without, any benefit to the public.
4)
Two tube leaks within twenty days out of approximately ten thousand tubes is not indicative of excessive deteriora-tion.
The random incidence of tube leakage is expected to occur occasionally at this rate or higher due to the statistical variation in the incidence of the event.
In short, the two tube leaks within twenty day limit
.'s:in
'our'pinion without any sound justifiable technical basis.
The inspection program which will be performed on the steam generators during the. next refueling will be based on the program described in our letter of June 16, 1977 (L-77-179)..
The results of this inspection program will be used to develop a preventative plugging program.
The Turkey Point Plant. Nuclear Safety Committee and the Company Nuclear Review Board have reviewed this license amendment.
request and have concluded that it does not involve an unreviewed safety question.
Very truly yours, Robert E. Uhrig Vice President REU: GDW: 1tm cc:
Norman C. Mosely, Region II Robert Lowenstein, Esquire
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STATE OF FLORIDA
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COUNTY OF DADE
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Robert E. Uhrig, being first duly sworn, deposes and says:
That he is a Vice President of Florida Power S Light Company, the Licensee herein; That he has executed tne foregoing document; that the.state-ments made in this said document are true and correct to the best of his knowledge, information, and belief, and that he is authorized to execute the document on behalf of said Licensee.
Robert E. Uhrig Subscribed and sworn to before me this
~0day of 19~/
NOTARY PUBLIC, in and for t e County of Dade, State of Florida TARY POSLIC STATE OF FLORIDA aI LARQS mm" ion e~pires:
4Y coMMIssIDN EXPIRES APRIL 2,
19SO
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