ML20029B094
| ML20029B094 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 02/19/1991 |
| From: | Julian C NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | Cottle W ENTERGY OPERATIONS, INC. |
| Shared Package | |
| ML20029B095 | List: |
| References | |
| NUDOCS 9103050414 | |
| Download: ML20029B094 (4) | |
See also: IR 05000416/1990024
Text
{{#Wiki_filter:E,- .. hk ~ ' Februaru 19, 1991 Docket No. 50-416 License No. NPF-29 Entergy Operations, Inc. ATTN: Mr. W. T. Cottle, Vice President Operations - Grand Gulf P. O. Box 756 Port Gibson, MS 39150 Gentlemen: SUBJECT: ELECTRICAL DISTRIBUTION SYSTEM FUNCTIONAL INSPECTION AT GRAND GULF UNIT 1; REPORT NUMBER 50-416/90-24 We are forwarding the report of the electrical distribution system functional ~ inspection (EDSFI) conducted by the RII staff during November 13-16, November 26-30, and December 10-14, 1990. The exit meeting was held December 14, 1990 during which the findings of this inspection were discussed with you and members of your staff. The areas examined during the inspection are discussed in the enclosed copy of our inspection report. The inspection team assessed the design, implementation and technical support of the electrical distribution system (EDS), The 6 inspection consisted of a selective review of EDS design calculations, relevant procedures, representative records, installed equipment in the field, and interviews with engineering and technical support staff. It is the consensus of the team that the EDS will perform its intended function l under normal and accident conditions as now installed and maintained. Based on the results of this inspection, certain of your activities appear to be in violation of NRC requirements, as specified in the enclosed Notice of Violation. We are concerned about the violation because the lack of an adequate engineering evaluation of the 125 VDC Div I and II fuse / breaker coordination could result in the loss of a 125 VDC Bus if a fault were to occur on one of the bus branch circuits. Also, a noncited violation was identified for failure to follow procedures that required the Emergency Diesel Generator Control Cabinet Doors be closed when not attended. The inspection team identified concerns relating to certain operating and ' maintenance procedures that needed upgrading to improve specific activities in the areas of spare medium breaker storage, EDG fuel oil filter usage; verification of connecting bolt torque on 6900V and 4160V switchgear bus; calibration of voltage relays and load shedding bistables and replacement fuse control. You acknowledged these concerns during the inspection and started corrective actions to review and revise procedures as required. 9103050414 910219 PDR ADOCK 05000416 f- ( ol \\ , G PDR
, _ _ _ . _ _ _ _. ._ _ _ . _ . _ . . _ . _ ". . . Entergy Operations, Inc. 2 February 19, 1991 You are required to respond to this letter and should follow the instructions specified in the enclosed Notice when preparing your response. The NRC will review your response and verify your corrective actions during future inspections. In accordance with 10 CFR 2.790 of the NRC's " Rules of Practice," a copy of this letter and its enclosure (s) will be placed in the NRC Public Document Room. The responses directed by this _ letter and the enclosed Notice (s) are not subject to the clearance procedures of the Office of Management and Budget as required by the Paperwork Reduction Act of 1980, Pub. L. No. 96.511. , l ' Should you have any questions concerning this letter, please contact us. Sincerely, Original signed by Caudie A. Julian Caudie A. Julian, Chief Engineering Branch Division of Reactor Safety Enclosure: Notice of Violation i cc w/ encl: T. H. Cloninger, Vice President Engineering i Entergy Operations, Inc. P. O. Box 31995 Jackson, MS 39286 C. R, Hutchinson, General Manager Grand Gulf Nuclear Station. Entergy Operations, Inc. P. O. Box 756 -Port Gibson, MS 39150 H. J. Meisner, Director Nuclear Licensing Entergy Operations, Inc. P. O. Box 756 Port Gibson, MS 39150 (cc w/ encl cont'd - See page 3)
- - - - - - - - - _ - - - - _ - - - - . _ - - _ - - - . - - . - - , . . . Entergy Operations, Inc. 3 February 19, 1991 (cc w/enci cont'd) Mr. Jim T. LeGros Manager of Quality Assurance Entergy Operations, Inc. P. O. Box 31995 Jackson, MS 39286 Mike Morre, Attorney General Frank Spencer, Asst. Attorney General State of Mississippi P. O. Box 22947 Jackson, MS 39225 Gerald W. Muench Vice President, Operations Support Entergy Operations, Inc. P. O. Box 31995 Jackson, MS 39286-1995 Donald C. Hintz, Executive Vice President & Chief Operating Officer Entergy Operations, Inc. P. O. Box 31995 Jackson, MS 39286-1995 R. B. McGehee, Esq. Wise, Carter, Child, and Caraway P. O. Box 651 Jackson, MS 39205 N. S. Reynolds, Esq. Winston & Strawn 1400 L Street, NW - 12th Floor Washington, D. C. 20005-3502 Al ton B. Cobb, M.D. State Health Officer State Board of Heclth P. O. Box 1700 Jackson, MS 39205 The Honorable William J. Guste, Jr. Attorney General Department of Justice State of Louisiana P. O. Box 94005 Baton Rouge, LA 70804-9005 (cc w/ encl cont'd - See page 4) __ -_ - _ - - -- --
, __ _ _. . . . _ . _ ._ , - .. . . Entergy Operations, Inc. 4 February 19, 1991 (cc w/ enc 1 cont'd) Office of the Governor State of Mississippi Jackson, MS 39201 Jack McMillan, Director Division of Solid Weste Management Mississippi Department of Natural Resources P. O. Box 10385 Jackson, MS 39209 President Clairborne County Board of Supervisors Port Gibson, MS 39150 C. B. Hogg, Project Manager Bechtel Power Corporation P. O. Box 2166 Houston, TX 77252-2166 bec w/ encl: L Kintner, NRR ocument Control Desk F. Cantrell, RII NRC Resident inspector U.S. Nuclear Regulatory Conmission Route 2, Box 399 Port Gibson, MS 39150 l
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