ML20086H945
| ML20086H945 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 03/11/1975 |
| From: | Cooney M PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | Anthony Giambusso Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20086H948 | List: |
| References | |
| RO-75-6, NUDOCS 8401200360 | |
| Download: ML20086H945 (2) | |
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kl[b.'l March 11, 1975 Mr. A. Giambusso Division of Reactor Licensing Office of Nuclear Reactor Regulations United States Nuclear Regulatory (,ommission Washington, DC 20555
Dear Mr. Giambusso:
Subject:
Environmental Deviation The following deviation was reported to Mr. H. W. Crocker, Office of Inspection and Enforcement, Region 1 United States Nuclear Regulatory Commission on March 2, 1975
Reference:
License Number DPR-44/56 Environmental Technical Specifications 2.1 Report No.:
50-277/278-75-6 Report Date:
March 2, 1975 Deviation Date:
March 1, 1975 Facility:
Peach Bottom Atomic Power Station Units 2 and 3 R.D. 1, Delta, Pennsylvania 17314 Identification of Deviation:
Loss of the second fan on the
'C' cooling tower.
Conditions Prior to Deviation:
Units 2 and 3 both operating essentially at full power.
Description of Deviation:
With the tower in service, the 'H' fan motor was observed to be vibrating excessively, and thrcwing oil from its inboard bearing.
The 'D' fan was not in service due to a previous bearing box failure.
See 50-277/278-75-3 1%oTco g
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Designat;on of Apparent Cause of Deviation:
L' Motor bearing oil seal failure.
1 Analysis of Deviation:
Since there were nine of eleven f ans runninc., there were significant. environmental consequences as a result of the inoperability ru) of this fan. The water temperature leaving the tower changed only slightly. River' flows during this period were -in excess of 70,000 cfs.
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_ Corrective Action:
The 'H'- fan motor was replaced on 3/5/75 i
Failure Data:
Environmental Deviation Reports 50-277/278-74-2, 50-277/278-75-1, and 50-277/278-75-2.
Very truly yours, c
M.
. Cooney y
As t Gen'l Superintendent Generation Division cc:
Mr. J. P. O'Reilly Director Of fice of Inspection and Enforcement Region i United States Nucicar Regulatory Cc anission 631 Park Avenue King of Prussia, PA 19406 1
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