ML20086H148
| ML20086H148 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 09/03/1975 |
| From: | Ullrich W PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| Shared Package | |
| ML20086H147 | List: |
| References | |
| AO-75-56, NUDOCS 8401130479 | |
| Download: ML20086H148 (1) | |
Text
{{#Wiki_filter:--- r j p .O L./ .V.. l JRILADELPHIA ELECTRIC COMPANY ~1 Peach Bottes Atomic Power Station Delta, Pennsylvania 17314 September 3, 1975 M a#. James P. O'Reilly, Director Office of Inspection and Enforcement 4.6 Region.1 United States Nuc1har Regulatory Commission 631 Park Avenue King of Prussia, Pennsylvania 19406 Subjeetr Abnormal Occurrence 24-Hour Notification I l Con firming R. S. Fleischnann's phone conversation with Mr. Walt Baunack, Region 1 United States Nuclear Regulatory Consission on September 3, 1975 i l Report.3o.: $0-278-T5-5 l Report Date: September 3 1975 l Occurrence Date: September 2, 1975 ai Facility: Peach Bottom Atomic Power Station R.D. 1. Delta, Pennsylvania 17314 ( Identification of Occurrence: Failure of torus instrument nitrogen isolation valve, AC-3968, to close during. surveillance testing. Conditions Prior to Occurrence. Bot standby. ) ( g i Description of Occurrences During the perfor=ance of a surveillance test, AO-3968 f ailed to close when given-an isolation signal. Designation of Apparent Cause of Occurrence: Under investigation. ~ Analysis of Occurrence: l,~ are check valves inside and outside the torus penetration that would The safety implications of this occurrence are ninimal because there (
- prevent leakage in the event of a piping failure.
g Corrective Action: .A manual isolation valve in the line was closed. l Failure Data: l Eone previous. Very truly yours, 1 W. T. Ullrich, Superintendent Peach Botton Atomic Power Station ~ l l a I s ~ 8401130479 750912 I / l PDR ADOCK 05000278 S pgg rpn sur REGION =}}