L-77-296, Letter Consists of Steam Generator Repair Report Which Evaluates All Safety Related Aspects of the Repair Effort
| ML18227B791 | |
| Person / Time | |
|---|---|
| Site: | Turkey Point  |
| Issue date: | 09/20/1977 |
| From: | Robert E. Uhrig Florida Power & Light Co |
| To: | Stello V Office of Nuclear Reactor Regulation |
| References | |
| L-77-296 | |
| Download: ML18227B791 (6) | |
Text
NRC FORM 196 g-7SI UW NUCLEAR REGULATORY COMMISSION OOCI>>:EX UM 5RC DISTRIBUTlON Poh Pa>> TSO DQCKETMATERlAL FI UM f5LETTER
%ORIGINAL QCOPV DESCRIPTION GNOTORIZEO RfUNCLASSIFIEO TO:
Mr. Victor Stello FROM:
Florida Pwro & Light Company Miami, F1orida Robert Ee Uhrig INPUT'ORM ENCCOSU RE DATE OP DOCUMENT 9/20/77 OATS RECEIVED 9/23/77 NUMBER OF COPIES RECEIVED
/
Consists of STEAM GENERATOR REPAIR REPORT which evhluates all safety related aspects of the repair effort, ~
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PLANT'AME Turkey Point Units 3 & 4 4
RJL 9/23/77>>
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FOR ACTION/INFORMATION ASSIGNED AO.'~ MOORE LTR BRANCH CHIEF, hll HT4N PROSPECT MANAGER.-
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P.O. BOX 013100, MIAMI, FL 33101
~y6 Ai FI.ORIDA POWER & LIGHTCOMPANY September 20, 1977 L-77-296 Office of Nuclear Reactor Regulation Attn:
Mr. Victor Stello, Director Division of Operating Reactors U. S. Nuclear Regulatory Commission Washington, D.C.
20555
Dear'r. Stello:
Re:
Turkey Point'nit's 3
6 4
Docket Nos.'0-250 and 50-251 Steam Generator Re air Re ort I~I hr
,+
- y. CD V
J During the past two years, Florida Power &"Light Company has on occasion shut down Turkey Point Unit 4, and to a lesser extent Unit 3, for steam generator inspections and tube plugging.
Xf the total numer of steam generator tubes plugged continues to increase, it cold become necessary to limit the output of the units.
Accordingly, Florida Power S Light Company has deter-mined that a loss in the generating capacity of the units may make it desirable to undertake a maintenance program to repair the Turkey Point, Unit 3 and 4 steam generators.
Two alternate methods of repair are being considered:
lower section replacement and in place retubing.
The lower section replacement is described in some detail in the attached Steam Generator Repair Report, which is being forwarded -to you for your information.
Xn place retubing is still undergoing review.
Xf retubing proves, feasible and practical, we will supply a
description of this alternative for your information.
The Turkey Point. Plant Nuclear Safety Committee (PNSC) and the Florida Power 6 Light Company Nuclear Review Board (CNRB) have reviewed the steam generator repair described in the attached report.
They have concluded that 'the repair of the steam genera-tor is most appropriately classified as a repair and not, an alteration or a change to the facility.
However, since the repair involves minor modifications to steam generator internals to achieve state-of-the-art performance, evaluation of the modifi-cations is required in accordance with 10 CFR 50.59.
The PNSC and CNRB have concluded that these modifications are not safety-
- related, and do not involve an unreviewed safety question or a change in the facilities Technical Specifications.
ggO PEOPLE... SERVING PEOPLE
I I
I'I I'I
Office Attn:
of Nuclear Reactor Regulation Mr. Victor Stello, Director Division of Operating Reactors Page Two The PNSC and CNRB have also reviewed this repair activity, in all aspects, and have concluded that it does not involve an unreviewed safety question and that, a modification of the facilities Technical Specifications is not required.
The bases for this determination are provided in the attached report which evaluates all safety related aspects of the repair effort.
Thus, this repair, in accordance with the provisions of 10 CFR 50.59, does not require prior NRC approval.
It is the responsibility of Florida Power
& Light Company, as the holder of operating. licenses for Turkey Point Units 3 and 4, to perform those repairs which it deems necessary for the con-tinued safe and reliable generation of electric power for its customers.
Since this repair requires substantial advance plan-ning and involves a considerable cost, it. is important that the NRC make early determinations with respect to any review it be-lieves is required in this matter.
Therefore, Florida Power 6
Light Company requests that the Nuclear Regulatory Commission Staff inform us what prior review, if any, they will require in this matter.
This determination should be made by October 15,
- 1977, so as not to impact the earliest date we could commence the repair which is October 15, 1978.
Very truly yours, Robert E. Uhrig Vice President REU/GDW: 1tm Attachment cc:
J.
P. O'Reilly, Director, Region II Robert, Lowenstein, Esq.
t 4