ML20086K371
| ML20086K371 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 02/13/1975 |
| From: | Ullrich W PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| Shared Package | |
| ML20086K355 | List: |
| References | |
| AO-75-16, NUDOCS 8401270049 | |
| Download: ML20086K371 (1) | |
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40 CCc.% 4, mu:n PilILADELPHIA ELT.CTRIC COMPANY Peach Bottom istomic Power Station Delta Pennsylvania 17314 February 13, 1975
_r.
James P. O'Reilly, Director
.ifice of Inspection and Enforcement 3rgion 1
.:1ced States Nuclear Regulatory Commission
- 31 Park Avenue c.cg of Prussia, Pennsylvania 19406 Fubject:
Abnormal Occurrence 24-Hour Notification 2:sfirming W. T. U11 rich's phone conversation with Mr. Walt Baunack, Region 1, Taited States Nuclear Regulatory Concission on Pcbruary 13, 1975.
ieference:
License Number DPR-44 Technical Specification
Reference:
4.7.A.2.f tapert No. :
50-277-75-16
.J_4 port Date:
February 13, 1975 O currence Date:
February 12, 1975 Ta:ility:
Peach Bottom AtomLc Power Station R.D. 1, Delta, Pennsylvania 17314
!dentification of Occurrence:
Exces sive.1. nk a ce..o L IIf.CI.Iurb.ine. E;:haus t_Chn.ck _Yalve_ (- 23-65).
!caditions Prior to Occurrence:
Unit 2 shutdown for piping inspection.
- escription of Occurrence:
the HPCI Turbine Exhaust Check Valve, was During a routine local leak rate test, found to leak in excess of 2000 cc/ min.
esignation of Apparent Cause of Occurrence: failure to close tightly is being investigated.
The cause of the check valve's 1
A.=417 sis of Occurrence:
The safety icip11 cations of thin occurrence uro ninical since the inner turbine isolation stop check valve ( 23-12) closed and sealed satisfactorily.
exhaust 2 rrective Action:
The valve wiLL be inspected and maintained as required to achieve an acceptable leakage rate.
Isilure Data None.
Ve ry truly yours.
NW
/.,,4 l
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