ML20214L043
| ML20214L043 | |
| Person / Time | |
|---|---|
| Site: | Fort Calhoun  |
| Issue date: | 11/13/1986 |
| From: | Andrews R OMAHA PUBLIC POWER DISTRICT |
| To: | Martin R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| References | |
| IEB-86-003, IEB-86-3, LIC-86-565, TS-FC-86-738, NUDOCS 8612020552 | |
| Download: ML20214L043 (3) | |
Text
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t Omaha Public Power District t623 Harney Omaha Nebraska 68102 2247 402/536 4000 November 13, 1986 LIC-86-565 TS-FC-86-738 F _kIENb
,h Mr. R. D. Martin
.,,4 Regional Administrator Kay ? O.,,
mn U.S. Nuclear Regulatory Commission Region IV
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611 Ryan Plaza Drive, Suite 1000
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Arlington, Texas 760ll
Dear Mr. Martin:
SUBJECT:
References:
Docket No. 50-285 The Omaha Public Power District (0 PPD) received the subject bulletin dated October 8, 1986 on October 13, 1986. This bulletin required specific actions of licensees.
The actions required of all holders of operating licenses are detailed in the attachment to this letter. Our response to Paragraph 1 indi-cates that the actions required in Paragraphs 2, 3b and 4 of the subject bulle-tin are not required. As requested, a written report is being submitted under I
oath or affirmation.
If you have further questions concerning this matter, please contact us.
Sincerely, A
e" R. L. Andrews Division Manager Nuclear Production RLA/rh cc:
LeBoeuf, Lamb, Leiby & MacRae 1333 New Hampshire Avenue, N.W.
Washington, DC 20036 Mr. D. E. Sells, NRC Project Manager Mr. P. H. Harrell, NRC Senior Resident Inspector y
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UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION In the Matter of
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Omaha Public Power District
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Docket No. 50-285 (Fort Calhoun Station,
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Unit No. 1)
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AFFIDAVIT R. L. Andrews, being duly sworn, hereby deposes and says that he is duly author-ized to sign and file with the Nuclear Regulatory Commission the attached re-sponse to IE Bulletin 86-03 dated October 8, 1986; that he is familiar with the content thereof; and that the matters set forth therein are true and correct to the best of his knowledge, information and belief.
R. L. Andrews Division Manager Nuclear Production STATE OF NEBRASKA)
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ss COUNTY OF DOUGLAS)
Subscribed and sworgto before me, a Notary Public in and for the State of Nebraska on the 13 day of November,1986.
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ATTACHMEhT Response to IE Bulletin 86-03 i
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s Actions Reauired of All Licensees Promptly determine whether o'r not your facility has a ' single-failure vulnerabil-ity in the minimum flow recirculation line of any ECCS pumps that could cause a failure of more than one ECCS train. Within 30 days of receipt of this bulle-tin, provide a written report to the NRC which identifies whether or not this problems exists at your facility.
OPPD Response An investigation has been conducted and it has been determined the Fort Calhoun Station is not vulnerable to any single-failure in the minimum flow recircula-tion line of any ECCS pumps that could cause a failure of more than one ECCS train. The valves installed in this line will fail open upon loss of electric power or instrument air to the valve actuators.
A Actions Reauired of Licensees That Have Determined Their Facility's ECCS Pumos Minimum Flow Recirculation Line Has Sinole-Failure Vulnerability Paragraphs 2, 3b and 4 of the subject bulletin detail actions for licensees that have (or have had) the single-failure vulnerability problem in the ECCS pumps minimum flow recirculation line.
OPPD Response No further action is required by OPPD since the Fort Calhoun Station is not vulnerable to any single-failure in the minimum flow recirculation line of any ECCS pumps that could cause a failure of more than'one ECCS train.
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