Part 21 Report - 1996-071
ACCESSION #: 9512050143
Cooper Cameron Corporation
Cooper-Bessemer
Reciprocating Products Division
150 Lincoln Avenue
Grove City, PA 16127-1898
412 458-8000
November 28, 1995 COOPER
Cooper Energy Services
Our Ref: QCG-10236
Document Control Desk
U.S. Nuclear Regulatory Commission
Washington, D.C. 20555
Dear Sir:
In accordance with the requirements of the Nuclear Regulatory Commission
Title 10, Chapter 1, Code of Federal Regulations, Part 21, Cooper-
Bessemer Reciprocating Products Division, a division of Cooper Cameron
Corporation, hereby notifies the Commission of a potential design defect
of the KSV emergency diesel generator (EDG) system.
On November 6, 1995, Braidwood Station reported that during maintenance
activities excessive wear and rust was noted in the upper portion of the
governor drive assembly (Assembly No. KSV-17-6). On November 7, 1995,
Braidwood reported that the oil inlet hole in the top flange of the
bearing retainer did not appear to extend through to the inside of the
flange. The report indicated this was due to a sleeve repair of the bore
blocking the oil hole.
Lack of oil in this area could result in failure of this assembly
resulting in EDG inoperability. Due to the potential of this defect and
the ease of verification, it is recommended that all utilities verify an
open oil passage in this assembly (see attachment).
This assembly is installed on all Cooper-Bessemer KSV EDG's (except Zion
and Cooper Nuclear Stations). Similar assemblies for these stations are
KSV-17-1 (Zion and Cooper Nuclear), KSV-17-2 (Zion), and KSV-17-5 (Cooper
Nuclear). It is also recommended that all utilities use the same
procedures to verify the similar overspeed governor and drive assembly
KSV-17-7.
Cooper-Bessemer [Registered Trademark] o Enterprise [Trademark] o
Penn [Trademark] o Ajax [Registered Trademark] o Superior [Registered
Trademark]
Page 2
November 22, 1995
QCG-10236
If you have questions concerning this report, please contact Andrew P.
Steffan, Supervisor, Nuclear Support at 412-458-3455 or John M. Horne,
Manager, Nuclear and Analytical Engineering at 412-458-3543.
Sincerely,
COOPER CAMERON CORPORATION
J. D. Mowery
Vice President and General Manager
Attachment
/kll
cc: D. T. Blizzard - CES/GC
J. M Horne - CES/GC
A. D. Gillette - CES/GC
M. A. Schleigh - CES/GC
P. J. Shimek- CES/GC
L. T. Stewart - CES/GC
A. P. Steffan - CES/GC
File: K5fa36
Page 3
November 22, 1995
QCG-10236
Copies to:
Mr. Walter Haass Mr. Doug Mullen
U.S. Nuclear Regulatory Commission Nebraska Public Power District
One White Flint North Cooper Nuclear Station
Washington, DC 20555 P. O. Box 98
Brownville, Nebraska 68321
Mr. Gary Hunt
Houston Lighting and Power Mr. Terry O'Brien
South Texas Project Commonwealth Edison Co.
Wadsworth, TX 77483 1400 Opus Place
Downers Grove, IL 60515
Mr. James Kenny
Licensing Group Supervisor Mr. Lenny Schiavone
Pennsylvania Power and Light Niagara Mohawk Power Corp.
Two North Ninth Street Annex 2 301 Plainfield Road
Allentown, PA 18101 North Syracuse, NY 13212
Mr. Matthew Heidorn Ms. Kathleen Russo
Pennsylvania Power and Light Niagara Mohawk Power Corp.
Susquehanna Steam Electric Station Nine Mile Road - Unit 2
P. O. Box 467 P. O. Box 63
Berwick, PA 18603 Lycoming, NY 13093
Mr. Terence Bannon Mr. Neil Thibodaux
Nuclear Regulatory Affairs A2-4 Arizona Public Service
Pennsylvania Power and Light Palo Verde Nuclear Generating Station
2 North Ninth Street P. O. Box 52034 Mail Station 7566
Allentown, PA 18101 Phoeniz, AZ 85072-2034
Mr. David Baran Mr. Thomas Bradish
Commonwealth Edison Co. Manager, Nuclear Regulatory Affairs
Byron Nuclear Power Station Arizona Public Service
4450 North German Church Rd. P. O. Box 52034 Mail Station 7636
Byron, IL 61010 Phoeniz, AZ 85072-2034
Mr. Michael Kneble Mr. Terry Vandevoort
EnTergy Associates Commonwealth Edison
Louisiana Power and Light Zion Generating Station
Waterford 3 SES 101 Shiloh Blvd.
Highway 18 Zion, IL 60099
Taft, LA 70006
Mr. Dave Gustafson Mr. Arthur G. Killinger
Commonwealth Edison Co. MPR Associates, Inc.
Braidwood Nuclear Power Station 320 King Street
Tech Staff Electrical Group Alexandria, VA 22314-3238
Route 1, Box 84
Braceville, IL 60407
QCG-10236
Attachment 1
Figure omitted.
Remove oil line and verify "through" hole using wire or similar object.
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