ML19340B006
| ML19340B006 | |
| Person / Time | |
|---|---|
| Site: | Dresden, Quad Cities, Zion  |
| Issue date: | 08/29/1973 |
| From: | Brian Lee COMMONWEALTH EDISON CO. |
| To: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| Shared Package | |
| ML19340B007 | List: |
| References | |
| NUDOCS 8010170709 | |
| Download: ML19340B006 (2) | |
Text
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One First National Plaza. Chicago. tilinois f h.d Address Reply to: Post Office Box 767 Chicago, Illinois 60690 August 29, 1973 Mr. Boyce H. Grier Regional Director Directorate of Reg'ulatory Operations - Region III U.S. Atomic Energy Commissian 799 Roosevelt Road Glen Ellyn, Illinois 60137 4
Subject:
Dresden, Quad-Cities and Zion Stations Hydraulic Shock Absorbers
Dear Mr. Grier:
In response to your letter of August 17, 197.3, the following program for reinspection of Bergen-Patterson hydraulic shock absorbers installed on safety-related systems is provi_ded.
The reinspections are scheduled to be performed on approximately the following schedules.
Unit Returned Date Scheduled Unit To Service For Reinscection Quad-Cities 1 8-6-73 9-21-73 Quad-cities 2 8-5-73 10-10-73 Dresden 2 8-13-73 10- 3-73 Dresden 3 8-10-73 10-17-73 Zion 7-27-73 9-22-73 Reinspection will be conducted by each station in accordance with Directorate of Regulatory Operations Bulletin 73-4, dated August 17, 1973.
Specifically, the inspection will include the following:
a.
Determination of condition of seals - this will be accomplished by visual insepction of each hydraulic shock absorber for signs of leakage, change in fluid indicator position, etc.
Absence l
of any indication of degradation provides assurance that the seals are functioning properly.
Additionally, one shock absorber on each unit at Dresden and Quad-Cities selected from
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i 80101707 AUGJ1 1973
q Commonwealth Edison Cornpany Mr. Boyce H. Grier. August 29, 1973 one of the hotter locations in the containment, will be completely disassembled and inspected for signs of deterioration of the seal material.
b.-
Verification of overall integrity of shock absorber assemblies -
this will be accomplished by visual inspection.
c.
Examination for loss of fluid, fluid leaks and other signs of distress - this will be accomplished by visual inspection.
d.
Recording of piston rod extension and fluid level indicator position.
Reporting of the results of these reinspections will be in accordance with Item 4 and Item 5 of your August 17, 1973 Directorate of Regulatory Operations Bulletin 73-4.
If you have any further questions or comments please contact me.
Very truly yours,
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Byron Lee, Jr.
Vice-President
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