ML20084K028
| ML20084K028 | |
| Person / Time | |
|---|---|
| Site: | Quad Cities  |
| Issue date: | 10/18/1974 |
| From: | Kalivianakis N COMMONWEALTH EDISON CO. |
| To: | Oleary J US ATOMIC ENERGY COMMISSION (AEC) |
| Shared Package | |
| ML20084K030 | List: |
| References | |
| NJK-74-333, NUDOCS 8305190123 | |
| Download: ML20084K028 (1) | |
Text
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October 18, 1974
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- [ e Mr. J. F. O' Leary, Director f
Directorate of Licensing v' mf U. S. Atomic Enerry Commission Washington, D.C.
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SUBJECT:
Inspection of Shock Suppressors at Quad-Citics Nuclear Power Station, Unit 1, AEC Docket 50-254, DHt-29
Dear Mr. O' Leary:
The purpose of this letter is to report the results of a Hydraulic Shock Suppressor inspection which was conducted on October 4,1974 on quad-Cities Unit 1.
Four (4) Parker-Hannafin, 33 Bergen-Patterson, and 14 Grinnell Shock Suppressors were inspected.
All Grinnell and Parker-Hannafin Suppressors contained sufficient fluid and appeared to be in acceptable condition. Ho fluid leakage was present with renpect to any of these suppressors.
Pergen-Patterson Shock Suppressors Sarial Numbered F-61284-1 (Tag 1 -21 ),
402594 (Tac 1-Ph), and 68290 (Tar; 1-13), uere found to contain insufficient quantities of hydraulic oil in their respective reservoirs. All other suppressors were observed to be satisfactory.
The three ch'ective Percen-Patterson Shock Suppressors were removed and disansembled.
Inspection revealed the cause of the leakage in one suppressor to be a small chip out of the rod packing. This chip, about one-sixteenth of nn inch, was believed to be caused in the installation of the packing, j
The cause of the necond suppressor fluid loss was determined to be a nut on an accumulator tie rod that was not torqued down properly. No apparent cause could be found for the third suppressor's lors of fluid.
Very truly yours, A
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'N. J. Kalivianakis Station Superintendent NJK/ LPG /rhb 5b '[e/'
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