ML20073R243
| ML20073R243 | |
| Person / Time | |
|---|---|
| Site: | Fermi  |
| Issue date: | 04/15/1983 |
| From: | Wells D DETROIT EDISON CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, EF2-62622, NUDOCS 8305030585 | |
| Download: ML20073R243 (2) | |
Text
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Donald A. Wells up.gm Oum Av ace i 31.0 iT
- t 7 Edison EiE!==
April 15, 1983 EF2-62622 Mr. James G. Keppler, Regional Administrator Region III U.S. Nuclear Regulatory Cmmission 799 Roosevelt Road Glen Ellyn, Illinois 60137
Subject:
Final Report of 10CFR50.55(e) Item on Defective Agastat Relays
(#54)
Dear Mr. Keppler:
This is Detroit Edison's final report on the defective Agastat relays prob-Im. This probl e was originally reported to Mr. J. Neisler of NRC Region III by Detroit Edison's Mr. H.A. Walker, Supervisor - Construction Quality Assurance, on February 5, 1982.
At that time, Detroit Edison had received notification frcm Control Products Division of Amerace Corporation that Agastat E7000 Series timing relays sup-plied to the Fermi 2 site were defective. This prob 1m had been reported by Amerace Corporation to the NRC per 10CFR21 requirements.
The pneumatic timing diaphragms manufactured by one supplier exhibited bleedout of a fluid substance which affected the time delay of the relay.
Relays containing these diaphragms were about 20% of the production between the 24th week of 1981 and the 3rd week of 1982.
A review of procurement records by L.K. Comstock, as well as records at Amerace Corporation, indicate that only one relay manufactured during the affected time period was shipped to Fermi 2.
This relay was rm oved in accordance with Deviation Disposition Request #7767 on October 1, 1982, and returned to Amerace Corporation on October 5, B82, to be inspected for defects and possible replacerrent.
If you have questions concerning this matter, please contact Mr. G.M. Trahey, Assistant Director - Project Quality Assurance.
Very truly yours, seawdL.
DAW /DF/pn yDR ADDCK 05 h Ng
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ih 8305030585 8 APR - 2 7 1983 -
Mr. James G. Keppler, Regional Adninistrator April 15, 1983 Page Two EF2-62622 i
cc: Mr. Richard DeYoung, Director Office of Inspection and Enforccsnent U.S. Nuclear Regulatory Ccamission 1
Washington, D.C.
20555 Mr. Bruce Little, Senior Resident Inspector U.S. Nuclear Regulatory Ccmmission 6450 North Dixie Highway Newport, Michigan 48166 4
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