ML17214A521

Forwards Proprietary Failure Mechanism Analysis Program. Rept Withheld (Ref 10CFR9.5(4))

ML17214A521
Person / Time
Site:	Saint Lucie
Issue date:	10/25/1983
From:	Williams J FLORIDA POWER & LIGHT CO.
To:	John Miller Office of Nuclear Reactor Regulation
Shared Package
ML17214A522	List: ML17214A521
References
L-83-531, NUDOCS 8310280153
Download: ML17214A521 (8)

Text

REGULATORY FORMATION DISTRIBUTION 'S EM (RIDS)

ACCESSION NBR:8310280153 DOC DATE: 83/10/25

~ NOTARIZED YES DOCKET ¹ FACIL 50 335 Ste Lucie Planti UniIt 1i Florida Power 8 ight Co, 05000335

'AUTH, NAME 'UTHOR

}'JILLIAMSiJ>H, Florida AFFILIATION Power 8 Light Co, RECIPiNAME RECIPIENT AFFILIATION MILLERiJ ~ Rw Oper ating Reactors Branch 3

SUBJECT:

TITLE: OR For wards proprietary "Failur e Mechanism Analysis Rept withheld (ref 10CFR9 5(4))

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FLORIDA POWER 5 LIGHT COMPANY October 25, I 983 L-83-53 I Office of Nuclear Reactor Regulation Attention: Mr. James R. Miller, Chief Operating Reactors Branch 83 Division of Licensing U. S. Nuclear Regulatory Commission Washington, D.C. 20555

Dear Mr. Miller:

Re: St. Lucie Unit I Docket No. 50-335 Reactor Vessel Internals and Thermal Shield; c Plant, Recover Pro ram Draft Failure<MechanismiAnal sis (FMA)

Our letters of April l9, l 983 (L-83-230) and October l3, l983 (L-83-521), committed to provide a "Thermal Shield Failure Analysis" pursuant to .the St. Lucie Unit' Plant Recovery Program (Item B. from our L-83-230), by October 27, I 983. The documentation herein contained, satisfies item B. of our L-83-230.

Portions of Attachment (2) of this letter contain proprietary information, pursuant to the provisi ons of I 0 CFR 9.5(4), as discussed in Attachment (I ) (Combusti on Engineering, Inc., Statement for Withholding fro'rn Public Disclosure Pursuant to IO CFR 9.5 (4) ). Combustion Engineering has requested that Attachment 2 be returned upon receipt of the final version, currently scheduled to be provided on or about December I5, I 983. is a pre-issuance copy of Chapter 7, entitled "Failure Mechanism Analysis," of the final report on St. Lucie Unit I operation without a thermal shield and with a repaired core support barrel. It has been understood from your letter of April 26, l983, that Thermal Shield Failure Analysis was not required to be provided prior to return to power of St. Lucie Unit I. However, schedular delays in the recovery operation have allowed this report to be provided prior to the estimated return to power. Conclusions therein contained are solely those of Combustion Engineering. At this stage of the recovery, Florida Power 8 Light is not in the position to agree or disagree with those conclusions.

Remaining information submittal dates, updating our letter of October l3, l983 (L-83-52I) and the tentative dates of your letter of April 26, l 983, are as follows:

Items (Desi nation from Our A ril l9 I 983 letter L-83-230) Tentative Submittal Date D(5) Integrity and Stability of Internals December l5, l983 D(6) Conclusions and Findings December l5, l 983 Completed items/tasks integral to the St. Lucie Unit I Plant Recovery Program, are as follows: 83i0280153 83i025 I $ 06 p I I ~Q Q. A

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gf L gQC 5 I PEDPLE... SERVING PEQPLE

e Qu Page 2 Office of Nuclear Reactor Regulation Mr. James R. Miller, Chief L-83-230 Action Items ~Sub'ect Letter Date (NA) INITIALASSESSMENT OF REACTOR L-83-230 4/ I 9/83 VESSELL INTERNALS (4/12/83 NRC Meeting)

(DI) REACTOR VESSEL INTERACTIONS (PTS) L-83-263 4/27/83 (C) RECOVERY PLAN L-83-264 4/27/83

'(4/25/83 NRC Meeting)

(D2) EFFECTS ON FUEL PERFORMANCE L-83-265 4/27/83 (NA) TECHNICAL SPECIFICATION P/T LIMITS L-83-280 5/3/83 (D3&D4) LPMS AND EXCORE DETECTOR DATA L-83-345 6/7/83 REVIEW (6/3/83 NRC Meeting)

(NA) RV GAMMA HEATING SUBMITTAL L-83-367 6/23/83 (NA) EXXON RELOAD SUBMITTAL L-83-369 6/23/83 (NA) FINAL EXXON RELOAD SUBMITTAL L-83-429 7/27/83 (A) REACTOR VESSEL INTERNALS AND L-83-452 8/22/83 INSPECTION RESULTS (NA) RECOVERY PLAN REVISION L-83-475 9/7/83 (NA) POST-LUG REMOVAL FINAL NDE L-83-49I 9/20/83 INSPECTION RESULTS (NA) RECOVERY PLAN REVISION L-83-509 I0/6/83 (NA) RECOVERY PLAN REVISION L-83-52I I0/I3/83 Should any questions arise, please contact us immediately.

Very truly yours, J. W. Williams, Jr.

Vice President Nuclear Energy JWW/DAC/jk Enclosure cc: Harold F. Reis, Esquire

STATE OF FLORIDA )

. ) ss.

COUNTY OF DADE J. W. Williams, Jr. being first duly sworn, deposes and says:

That he is Vice President of Florida Power 5 Light Company, the Licensee heresn; That he has executed the foregoing cover letter, that the statements made in that cover letter are true and correct to the best of his knowledge, informa-tion, and belief, and that he is authorized to execute the document on behalf of said Licensee. of the enclosed material is proprietary, and therefore, exempt from public disclosure in accordance with Section 9.5 (4) of the NRC "Rules of Practice", Title 10, Code of Federal Regulations, per Attachment 1 of the basic letter provided by Combustion Engineering, Inc.

J. W. Williams, Jr.

Subscribed and sworn to before me this dyof NO,ARY PUBLIC;, and for the County

%OTARY PUSLIC STATE OF FLORIDA AT lARGE Nygcommission expires: ...

MY COMMISSION E@'IRES 5

DEC 0 1984 UNDERYYRITERs

Attachment'I F-CE-8037 Page 1 of 2 L-83-531 Combustion Engineering, Inc.

Statement for Withholding from Public Disclosure Pursuant to 10CFR9.5(4)

The material transmitted herewith, Chapter 7, Failure Mechanism Analysis, contains information previously designated as proprietary by Combustion Engineerino, Inc. in References 1 and 2. Pursuant to the provisions of 10CFR9.5(4) of the Commission's regulations, we request that the material be withheld from public disclosure and that this material be safeguarded. We believe that withholding this proprietary material will not adverely affect the public interest. The reasons for the classification of this information as proprietary are:

. The use of the information by a competitor would substantially decrease his expenditures, in time or resources, in designing, producing or marketing a similar product.

The information consists of test data or other similar data concerning a process, method or component, the application of which results" in a substantial competitive advantage to Combustion Engineering, Inc.

The information reveals special aspects of a process, method, component or the like, the exclusive use of which results in a substantial competitive advantage to Combustion Engineering, Inc.

The information contained in the enclosure is meant to be part of the formal basis for official action by the NRC Staff concerning the St. Lucie Unit 1 thermal shield removal effort. The submittal of the subject 'information prior to formal issuance of the final report on St. Lucie 1 operation 'without a thermal shield is meant to facilitate an efficient and timely review by the NRC staff. C-E has not made a detailed determination of proprietary information for this material in its present form. Such determination will be made when the information is reviewed as an integral part of the final report. Florida Power and Light wi 11 submit an application for withholding from public disclosure the subject information, along with the appropriate affidavit, delineation of proprietary material, and non-proprietary version when they.

. forma.lly provide, the final documentation. It is expected this will be on or about December 15, 1983. At that time, the return of the pre-issuance copy of Chapter 7 (enclosure) will be requested.

c, ~ Jv I Attachment F-CE-8037 Page 2 L43-531 of 2 1

References

1. CEN-250(F)-P, "In Service Monitoring St. Lucie 1", Hay 31, 1983.

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2. CEN-253(F)-P, "St. Lucie 1 Core Support Barrel Inspection, Repair and Analysis, and Thermal Shield Removal", August 16, '1983.

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