ML20086F933
| ML20086F933 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 10/21/1975 |
| From: | Ullrich W PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| Shared Package | |
| ML20086F930 | List: |
| References | |
| AO-75-69, NUDOCS 8401090685 | |
| Download: ML20086F933 (1) | |
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PHILADELPHIA ELECTRIC. COMPANY Peach Bottom Atomic Power Station Delta. Pennsylvania -
II October 21, 1975
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Mr. Janes P.
O'Reilly, Director Office of Inspection and Enforcement Region 1 United States Huelear Regulatory Conmission gg [h 631 Park Avenue King of Prussia. Pennsylvania 19406 Subject _
Abnormal Occurrence 2b-Hour Kotifiention Co'nfirming R. S.iFleischcann's phone conversation with,Mr. Walt Baunack. l Region 1, United States Nuclear Regulatory Commission on October 21. 1975.'
Reference:
License Number DPR kk Technical Specification
Reference:
h.T.A.2.f
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Report No.:
50-277-75-69
.. Report Date:
October 21. 1975
\\ Occurrence Date:
October 21, 1975 Facility:
Peach Bottom Atomic Power Station R.D.
- 1. Delta, Pennsylvania 17314 i
Identification of Occurrence:
m 0-Ring gasket leak on dryvell and torus inerting E 8uPPly valve i
A0-2519 2
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Conditions Prior To Occurrence:
j Reactor power 56%.
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! Description of Occurrence:
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While preparing to do a local leak rate test on the inboard flange I
of AO-2519 nitrogen was found to leak out.
The inboard 0-ring on this flange leaks.
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. Designation of Apparent Cause of Occurrence:
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Under investigation.
I Analysis of Occurrence:.
Both the inboard and outboard isolation valves were closed at the time and both were verified to be leak tight. [ Because the isolation valves and the outer 0-ring were found to be leak tight. safety implications are minimal.
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Corrective Action:
To be determined after investigation.
l Failure Data:
None.
Very truly yours.
W. T. Ullrich. Superintendent Peach Botton Atomic Power Station
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