LD-94-019, Suppl Part 21 Rept Re Notification of Potential Defect in motor-driven Relays Supplied by ABB-CE to Waterford Steam Electric Station Unit 3.Entergy Oparations Aware of Info
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| ML20064M393 | |
| Person / Time | |
|---|---|
| Site: | Waterford  |
| Issue date: | 03/16/1994 |
| From: | Toelle S ABB COMBUSTION ENGINEERING NUCLEAR FUEL (FORMERLY, ASEA BROWN BOVERI, INC. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| REF-PT21-94 LD-94-019, LD-94-19, NUDOCS 9403280205 | |
| Download: ML20064M393 (1) | |
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|---|---|
Category:DEFICIENCY REPORTS (PER 10CFR50.55E & PART 21)
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Text
,. .
ABB
. March 16, 1994 LD-94-019 Document Control Desk U.S. Nuclear Regulatory Commission Washington, D.C. 20555
Subject:
Supplement to ABB-CE's December 23, 1993, Part 21 Report on Potter & Brumfiold MDR Model 7032, 7033, and 7034 Relays Referencc: Letter LD-93-177, S. A. Toolle (ABB-CE) to Document Control Desk (NRC), "10 CFR Part 21 Report on Potter
& Brumfield MDR Model 7032, 7033, and 7034 Relays,"
December 23, 1993
Dear Sir:
The purpose of thi9 letter is to document information previously provided to Mr. B. H. Rogers of the NRC Vendor Inspection Branch.
The referenced ABB Combustion Engineering (ABB-CE) 10 CFR Part 21 report provided notification to the NRC of a potential defect in motor-driven relays (MDRs) supplied by ABB-CE to Entergy Operations' Waterford Steam Electric Station Unit 3 (WSES-3).
The relays subject to the identified failure mechanism were reported in the Reference to be Potter & Brumfield MDR relays, models 7032, 7033, and 7034, with date codes between 9239 (the 39th week of 1992) and 9349. We subsequently learned from Potter'&
Brumfield that in order to completely bound the problem'at WSES-3, it was necessary to expand the affected lot of relays to include those with date codes between 9232 (the 32nd week of 1992) and 9349. Entergy Operations is aware of this information.
If you have any questions, please contact me at (203) 285-5213.
Very truly yours, S. A. 1, S. A. Toelle Manager Nuclear Licensing 11j/lw cc: B. II . Rogers (NRC)
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