ML20086H753
| ML20086H753 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 06/24/1975 |
| From: | Cooney M PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | Anthony Giambusso Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20086H756 | List: |
| References | |
| AO-75-45, NUDOCS 8401200182 | |
| Download: ML20086H753 (2) | |
Text
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PHILADEl.PHIA ELECTRIC COMPANY 2301 MArsKET STREET PHILADELPHI A, PA.19101 12151841 4000 June 24,1975 Mr. A. Giambusso Dircctor Division of Reactor Licensing Office of Nuclear Reactor Regulations United States Nuclear Regulatory Commission r
Washington, DC 20555
Dear Mr. Gie.mbusso:
Subject:
Abnormal Occurrence The folicwing occurrence was reported to Mr. Robert Carlson, Region 1, Office of Inspection and Enforcement, United States Nuclear Regulatory Commission on June 14, 1975 Written notification was made to Mr. James P. O'Reilly, Region 1, Of fice of. Inspection and Enforcement, United States Nuclear Regulatory Commission on June 16, 1975 In accordance with Section 6.7.2.A of the Technical Specif; cations, Appendix A of DPR-44 for Uni t 2 Peach Bottom Atomic Power Stat ion, the following occurrence is being submitted to the Directorate of Reactor Licensing as an Abnormal Occurrence.
Reference:
License Number DPR-44 Technical Specification
Reference:
3 5.A Report No.:
50-277-75-45 Report Date:
June 24, 1975 Occurrence Date:
Jane lis, 1975 Facility:
Peach Bottom Atomic Power Station R.D. 1, Delta, Pennsylvania 17314 Identification of Occurrence:
Failure of RHR injection valve to operate (M0-25A).
Conditions Prior to Occurrence:
Unit 2 in cold shutdown.
Description of Occurrence:
On June 14, 1975, while placing shatdown cooling in service, the RHR 25A valve f ailed to open electrically.
8401200182 750624 bNlb PDR ADOCK 05000277 S
SrN Pega,)7-75-45
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.Mr. A. Giambuss'o W
s 2.
June 24, 1975 Designation of Apparent Cause of Occurrence Investigation showed that the key between the motor shaf t and limitorque drive gear had failed.
Analysis of Occurrence:
This occurrence is of minimal safety significance since the unit was in cold shutdow'1 and the other locp of shutdown cooling was operabic.
Corrective Action:
The valve operator was repaired and operated satisfactorily prior to reactor startup. Repairs were made by replacing the. broken key, cleaning and deburring the keyway and shaf t and reassembling using
" LOCTITE".
Failure Data:
None previous.
Very truly yours, M. J Cooney Ass't Gen'1 Superintendent Generation Division cc:
Mr. J. P. O'Reilly
. Director, Region 1 Of fice of Inspecti,on and Enforcement United States Nuclear Regulatory Commission 631 Park Avenue King of Prussia, PA 19406 f
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