W3F1-2018-0040, Interim Report of a Deviation or Failure to Comply
| ML18186A694 | |
| Person / Time | |
|---|---|
| Site: | Waterford  |
| Issue date: | 07/05/2018 |
| From: | Gilmore R Entergy Operations |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| W3F1-2018-0040 | |
| Download: ML18186A694 (2) | |
Text
Entergy Operations, Inc.
1 7265 River Road Killona, LA 70057-3093 rgtImorentergycom Ran B. Gilmore Regulatory and Performance Improvement Director Waterford 3 10 CFR 21.21(a)(2)
W3FI -2018-0040 July 5, 2018 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555
Subject:
Interim Report of a Deviation or Failure to Comply Waterford Steam Electric Station, Unit 3 (Waterford 3)
License No. NPF-38 Docket No. 50-382
Dear Sir or Madam:
Pursuantto 10 CFR 21.21(a)(2), Waterford 3 hereby submits this interim report.
The deviation to be evaluated is the failure of Westinghouse Process Analog Computer (PAC)
Analog Comparator (NAC) model number 2838A32G01, Control Board (NCB) model number 2838A30G01 I, and Prom Logic (NPL) model number 2838A33G01 circuit cards. Texas Instrument S/N74LSO4N WI 13 Hex Inverter chips are the cause of the Westinghouse card failures, with lot numbers 45CT3VK, 45CT8VK, and 43A80KM being suspect.
Westinghouse is performing an investigation of the chip failures. Evaluation of the failure is expected to be complete by August 21, 2018.
There are no regulatory commitments contained in this correspondence.
Should you have questions regarding this report, please contact John P. Jarrell, Regulatory Assurance Manager, at (504) 739-6685.
Sincerely, s
RBG/JPJ/ajh
W3FI -2018-0040 Page 2 cc:
Mr. Kriss Kennedy, Regional Administrator U.S. NRC, Region IV RidsRgn4MailCenternrc.gov U.S. NRC Project Manager for Waterlord 3 April.Pulvirentinrc.gov U.S. NRC Senior Resident Inspector for Waterford 3 Frances.Ramireznrc.gov Chris.Speer@nrc.gov