ML20027A861
| ML20027A861 | |
| Person / Time | |
|---|---|
| Issue date: | 06/22/1982 |
| From: | Minogue R NRC OFFICE OF NUCLEAR REGULATORY RESEARCH (RES) |
| To: | Michelson C NRC OFFICE FOR ANALYSIS & EVALUATION OF OPERATIONAL DATA (AEOD) |
| Shared Package | |
| ML20027A769 | List: |
| References | |
| FOIA-82-338 NUDOCS 8208020047 | |
| Download: ML20027A861 (3) | |
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UNITED ST ATES oc g,
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p, W ASHINGTON, D. C. 20555 i N;,g' June 22,1982 MEMORANDUM FOR:
Carlyle Michelson, Director Office for Analysis and Evaluation of Operational Data FROM:
Robert B. Minogue, D'irector Office of Nuclear Regulatory Research
SUBJECT:
PROPOSED ABNORMAL OCCURRENCE - PRESSURE TRANSIENTS DURING SHUTDOWN AT A NUCLEAR POWER PLANT We have reviewed your June 3 memorandum on the subject proposed A0 and the draft Commission Paper and Federal Register letter appended thereto.
Based solely on the information contained therein, we cannot concur with your assessment that this is an Abnormal Occurrence. We base this finding on the fact that analysis shows the integrity of the pressure vessel was not impaired and the fatigue life was not affected.
If you choose to list this incident as an A0, we recommend that you expand the discussion of the potential con-sequences of the transients, as they relate to vessel integrity.
As presently written, the information on the Westinghouse analysis appears to conflict with the statement that the pressure transients had the potential for brittle fracture of the reactor vessel if significant flaws were present and the transients had not been promptly terminated by operator action.
The dis-cussion should include a description of the size of the flaw necessary for propagation and an indication of the likelihood of such a flaw existing undetected.
Furthermore, since fixes have been implemented to supposedly eliminate these types of transients, we suggest that a review be conducted to determine the correct frequency of such events in order to evaluate the effectiveness of the fixes.
This type of supporting information should be provided before this event is categorized as an abnormal occurrence.
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UNITED STATES hIb
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-UCLEAR REGULATORY COMMISSIOM'
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July 21, 1982 OFFICE OF THE SECRETARY
. MEMORANDUM FOR:
William J. Dircks, Executive Director for Operations PROM:
Samuel J.
Chilk, Secre:
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SUBJECT:
SECY-82-255 - ABNORMAL CURRENCE RECOMMENDATION - PRESS TRANSIENTS DURING SHUTDOWN AT A NUCLEAR POWER PLANT
~~'
This is to advise you that the Commission 4
the associated Federal Register Notice subject to:has ap agreeing) 1.
Modifying ' lines 6 and 7 of page 3 to read "...which close at 465 psig to prevent over pressurizing _ the RHR system.
The RHR system... "; and 2.
the inclusion of a diagram.
You should also reexamine the statement on the first line of origin" occurred.page 6 which states that a pressure increase of _"_ undetermined If it is not significant that it is of undetermined origin the Commission suggests that you drop
' the phrase; if it is significant, to know if the licensee is examining it.the Commission would like You should make it for publication.the above changes to the Federal Register Notice and return (EDO/AEOD) (SECY SUSPENSE:
8/9/82)
The Of fice for Analysis and Evaluation of Operational Data was informed of this action on July 20, 1982.
cc:
Chairman Palladino Commissioner Gilinsky Commissioner Ahearne Commissioner Roberts Commissioner Asselstine OGC OPE
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CONTACT:
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1' Ehe fRinmi Heralb A KNIGHT RIDDER NEWSPAPER THE Mt AMI HERALD PUBLISHING CO. e 1 HERALD PLAZ A MIAMI, FLORIDA 331o1 e (AREA CODE GoS) 35o-2111 FREEDOM OF INFORMATION July 26, 1982 ACT REQUEST FoZA-sa 33p 7't)f'[Q Director of Division of Rules and Records Nuclear Regulatory Commission Washington, D.C.
20555 To: John Carr
Subject:
FOIA request
Dear Mr. Carr:
This is a request under the Freedom of Information Act on behalf of The Miami Herald and John Arnold, one of its reporters.
We are requesting copies of NRC correspondence, memos, reports, etc. written in response to, or caused to be written by the specific Florida Power and Light Co. licensee event reports enumerated below.
The request is for any document including but not limited l
to studies, memos, reports, letters, PNOs, meeting minutes, correspondence with utilities and documents routed cr written to NRR, AEOD, the Division of Licensing and I.
and E.
that relate to Florida Power and Light Turkey Point units three and four with respect to the following:
1 i
1.
A licensee event report dealing with potential cracks in Lexan coil spools of General Electric Company type HFA relays l
dated Jan.
19, 1981.
A second LER'on the subject is dated Feb.
3, 1481.
2.
A utility letter to Jame P.
O'Reilly, Director, p
y.eg1on l
11 o,f1ce of znspect1on and nforc.m.nt. dat.d march >,.
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I' I
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page 2 1981, with the reference code PRN LI 81 156.
3.
A licensee event report on foreign material found in the 3B steam generator dated April 1,
1981.
4.
A licensee event report on a reactor trip dated April 21, 1981.
Event date, March 22, 1981.
5.
A licensee event report on a reactor trip dated August 27, 1981.
Event date, July 28, 1981.
6.
A licensee event report dealing with NBFD relays manufactured by Westinghouse dated October 28, 1961.
7.
A licensee event report on the overpressurization of Turkey Point unit four dated December 28, 1981.
Event date, November 28, 1981.
8.
A licensee event report on the loss of electrical service and reactor trips at both units three and four.
Event date April 29, 1982.
As you know, the amended act provides that if some parts of a file are exempt from release that " reasonably segregable" portions shall be provided.
I therefore request that, if you determine that some portions of the requested information are exempt, you provide me immediately with a copy of the remainder of the information.
I, of course, reserve my right to appeal any such
- decisions.
If you determine that some or all of the information is exempt from release, I would appreciate your advising me as to which exemption you believe covers the material which you are not releasing.
I am prepared to pay reasonable costs for locating the requested material and reproducing it.
The amended act permits you to reduce or waive the fees if it "is in the public interest because furnishing the information can be considered as primarily benefiting the public."
page3 Since the information is sought for publication in The Miami Herald, I believe th a t this request fits that category.
And I ask you to waive any fees.
If you have any questions regarding this request, please telephone me at 305-350-2894.
As provided in the FOIA, I will expect to receive a reply within 10 working days.
Sincerely,
/John Arnold Staff Writer W
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