ML20214J709
| ML20214J709 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 08/15/1986 |
| From: | Noonan V Office of Nuclear Reactor Regulation |
| To: | Counsil W TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| Shared Package | |
| ML20214J711 | List: |
| References | |
| NUDOCS 8608150140 | |
| Download: ML20214J709 (5) | |
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UNITED STATES g
NUCLEAR REGULATORY COMMISSION 5
,j WASHINGTON, D. C. 20555
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me u a Docket Nos.:
50-445 and 50-446 Mr. William G. Counsil Executive Vice President Texas Utilities Generating Company Skyway Tower,l.. B. 81 400 North Olive Street Dallas, Texas 75201
SUBJECT:
SAFETY EVALUATION REPORT OF THE OPERABII.ITY/REI.IABII.ITY OF EMERGENCY DIESEL. GENERATORS MANUFACTURED BY TRANSAMERICA del.AVAL, INC.
As you are well aware, concerns regarding the reliability of large bore, medium speed diesel generators manufactured by TDI for application at domestic nuclear plants were first prompted by a crankshaft failure at Shoreham in August 1983. A broad pattern of deficiencies in critical engine comporents subsequently occurred at Shoreham and other nuclear and non-nuclear facilities employing TDI diesel generators. These deficiencies stemmed from inadequacies in design, manufacture and quality assurance / quality contro.1 (0A/QC) by TDI.
In response to these problem, 11 (now 13) U. S. nuclear utility owners formed a TDI Diesel Generator Owners Group to address operational and regulatory issues relative to diesel generator sets used for standby emergency power. On March 2, 1984, the Owners Group submitted a proposed program to the NRC which, through a combination of design reviews, quality revalidations, engine tests and component inspections, was intended to provide an in-depth assessment of the adequacy of the respective utility's TDI engines to perform their safety related function.
The Owners Group Program Plan involved the following ma.1or elements:
(1) Phase I: Resolution of known generic problem areas intended by the Owners Group to serve as a basis for the licensing of plants during the period prior to completion of Phase II of the Owners Group Program.
(2) Phase II: A design review / quality revalidation (DR/QR) of a large set of important engine components to assure that their design and manufacture, including specifications, quality control and quality assurance, and operational surveillance and maintenance, are adequate.
(31 Expanded engine tests and inspections as needed to support Phases I and II.
8608150140 860815 PDR ADOCK 05000445 S
E SID Mr. William G. Counsil The staff has previously concluded that the Owners Group Program Plan incorporates the essential elements needed to resolve the outstanding concerns relating to the reliability of the TDI EDGs for nuclear service
(
Reference:
U.S. NRC Safety Evaluation Report, Transamerica Delaval, Inc.,
Emergency Diesel Generator Owners Group Program Plan, Washington, D. C.,
August 13, 1984).
The Safety Evaluation Report (SER) herein provides the staff's evaluation of the Owners Group findings and recommendations stemming from the program.
Subject to the findings of this SER, the staff has concluded that a technical resolution of the generic TDI emergency diesel generator issue is available. Technical resolution will involve implementation of an acceptable Phase I program as identified in Section 2.1 of this SER, an acceptable Phase II program as identified in Section 2.2 of this SER, and implementation of an acceptable maintenance and surveillance program as identified in Section 2.3 of this SER. These actions are supplemental to requirements which must normally be satisfied (e.g., Regulatory Guide 1.108) as a prerequisite for obtaining an operating license (
Reference:
NUREG-0800, " Standard Review Plan").
Generic Phase I issues, problem areas of a plant-specific nature, and maintenance and surveillance programs must be fully addressed as a condition for issuance of an operatin Where other issues remain to be closed out (e.g., Phase II issues)g license.
in accordance with this SER, a license condition will be imposed requiring such closeout by the first refueling outage.
With regard to Phase I components, the staff has concluded that several of these components merit special emphasis in the areas of load restrictions and/or maintenance / surveillance. These components include the DSRV connecting rods, cylinder blocks, cylinder heads, and turbochargers.
Engine load restrictions must be addressed in the plant Technical Specifications, license conditions, engine operating procedures and operator training, as appropriate. The most critical periodic maintenance / surveillance actions for these components will be incorporated as license conditions.
Please review the enclosed SER for further amplification on these topics.
Contact Annette Vietti-Cook, Project Manager, telephone no. (301) 492-8525, for further discussions on this topic, d
Vincent
. No nan, Director PWR Project Directorate #5 Divison of licensing-A
Enclosure:
Safety Evaluation Report of the Operability /
Reliability of Emergency Diesel Generators Manufactured by Transamerica Delaval, Inc, cc: See next page Distribution:
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Mr. William G. Counsil The staff has previously concluded that the Owners Group Program Plan incorporates the essential elements needed to resolve the outstanding concerns relating to the reliability of the TDI EDGs for nuclear service
(
Reference:
U.S. NRC Safety Evaluation Report, Transamerica Delaval, Inc.,
Emergency Diesel Generator Owners Group Program Plan, Washington, D. C.,
August 13, 1984).
The Safety Evaluation Report (SER) herein provides the staff's evaluation of the Owners Group findings and recommendations stemming from the program.
Subject to the findings of this SER, the staff has concluded that a technical resolution of the generic TDI emergency diesel generator issue is available. Technical resolution will involve implementation of an acceptable Phase I program as identified in Section 2.1 of this SER, an acceptable Phase II program as identified in Section 2.2 of this SER, and implementation of an acceptable maintenance and surveillance program as identified in Section 2.3 of this SER. These actions are supplemental to requirements which must normally be satisfied (e.g., Regulatory Guide 1.108) as a prereouisite for obtaining an operating license (
Reference:
NUREG-0800, " Standard Review Plan").
Generic Phase I issues, problem areas of a plant-specific nature, and maintenance and surveillance programs must be fully addressed as a condition out (e.g., Phase II issues)g license.
for issuance of an operatin Where other issues remain to be closed in accordance with this SER, a license condition will be imposed requiring cuch closecut by the first refueling outage.
With regard to Phase I components, the staff has concluded that several of these components merit special emphasis in the areas of load restrictions and/or maintenance / surveillance. These components include the DSRV connecting rods, cylinder blocks, cylinder heads, and turbochargers. Engine load restrictions must be addressed in the plant Technical Specifications, license conditions, engine operating procedures and operator training, as appropriate. The most critical periodic maintenance / surveillance actions for these components will be incorporated as license conditions.
Please review the enclosed SER for further amplification on these topics.
Contact Annette Vietti-Cook, Project Manager, telephone no. (301) 492-8525, for further discussions on this topic.
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6.
o an ctor
/ WR Proje Di ctorate #5 Divison o I.icensing-A
Enclosure:
Safety Evaluation Report of the Onerability/
Reliability of Emergency Diesel Generators Manufactured by Transamerica Delaval, Inc.
cc: See next page
4 W. G. Counsil Comanche Peak Steam Electric Station Texas Utilities Generating Company Units 1 and 2 cc:
Nicholas S. Reynolds, Esq.
Resident Inspector / Comanche Peak Bishop,l.iberman, Cook, Steam Electric Station Purcell & Reynolds c/o U.S. Nuclear Regulatory Commission 1200 Seventeenth Street, NW P. O. Box 38 Washington, D.C.
20036 Glen Rose, Texas 76043 Robert A. Wooldridge, Esq.
Regional Administrator, Region IV Worsham, Forsythe, Sampels &
U.S. Nuclear Regulatory Commission Wooldridge 611 Ryan Plaza Drive, Suite 1000 2001 Bryan Tower, Suite 2500 Arlington, Texas 76011 Dallas, Texas 75201 lanny A. Sinkin Mr. Homer C. Schmidt Christic Institute Manager - Nuclear Services 1324 North Capitol Street Texas Utilities Generating Company Washington, D.C.
20002 Skyway Tower 400 North Olive Street, l B. 81 Ms. Billie Pirner Garde Dallas, Texas 75201 Citizens Clinic Director Government Accountability Project Mr. Robert E. Ballard, Jr.
1555 Connecticut Avenue, N.W.
Director of Projects Suite 202 Gibbs and Hill, Inc.
Washington, D.C.
20009 11 Pen Plaza New York, New York 10001 David R. Pigott, Esq.
Orrick, Herrington & Sutcliffe 600 Montgomery Street Mr. R. S. Howard San Francisco, California 94111 Westinghouse Electric Corporation P. O. Box 355 Anthony Z. Roisman, Esq.
Pittsburgh, Pennsylvania 15230 Trial lawyers for Public Justice 2000 P. Street, NW Renea Hicks, Esq.
Suite 611 Assistant Attorney General Washington, D.C.
20036 Environmental Protection Division P. O. Box 12548, Capitol Station Nancy E. Wiegers Austin, Texas 78711 Spienel & McDiarmed 1350 New York Avenue, NW Mrs. Juanita Ellis, President Washington, D.C.
20005-4798 Citizens Association for Sound Energy 1426 South Polk Roy P. I.essy, Jr.
Dallas, Texas 75224 Morgan, Lewis & Bockius 1800 M. Street, NW Ms. Nancy H. Williams Suite 700, North Tower CYGNA Washington, D.C.
20036 101 California Street San Francisco, California 94111
Texas Util.ities Electric Company Comanche Peak Electric Station Units 1 and 2 cc:
Resident Inspector - Comanche Peak c/o U.S. Nuclear Regulatory Commission P. O. Box 1029 Granbury, Texas 76048 Mr. John W. Beck Vice President Texas Utilities Generating Company Skyway Tower 400 N. Olive Street, LB#81 Dallas, Texas 75201 Mr. Jack Redding licensing Texas Utilities Generating Company 4901 Fairmont Avenue Bethesda, Maryland 20814 William A. Burchette, Esq.
Counsel for Tex-la Electric Cooperative of Texas Heron, Burchette, Ruckert & Rothwell Suite 700 1025 Thomas Jefferson Street, NW Washington, D.C.
20007 GDS Associates, Inc.
2525 Cumberland Parkway Suite 450 Atlanta, Georgia 30339 Administrative Judge Peter Bloch U.S. Nuclear Regulatory Commission Washington, D.C.
20555 Elizabeth B. Johnson Administrative Judge Oak Ridge National laboratory l
P. O. Box X, Building 3500 Oak Ridge, Tennessee 37830 Dr. Kenneth A. McCollom 1107 West Knapp Stillwater, Oklahoma 74075 Dr. Walter H. Jordan 881 Outer Drive Oak Ridge, Tennessee 37830
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