Part 21 Report - 1996-240
ACCESSION #: 9602020172
Log # TXX-96034
File # 10110
Ref. # 10CFR21
TU ELECTRIC January 29, 1996
C. Lance Terry
Group Vice President
U. S. Nuclear Regulatory Commission
Document Control Desk
Washington, DC 20555
SUBJECT: COMANCHE PEAK STEAM ELECTRIC STATION (CPSES)
DOCKET NOS. 50-445 AND 50-446
FAN MOTOR BEARING INDICATIONS
INTERIM 10CFR21 NOTIFICATION
Gentlemen:
Title 10 of the Code of Federal Regulations, Part 21 (10CFR21) requires
that licensees evaluate deviations and failures to comply, and report
those that could create a substantial safety hazard. Section 21(a)(2) of
10CFR21 requires an interim report if the required evaluation cannot be
completed within 60 days. This letter is an interim report per
10CFR21.21(a)(2) regarding a deviation that TU Electric is evaluating for
reportability per 10CFR21.
During receipt inspection of spare fan motor bearings for IEEE Class 1E,
ANSI Safety Class 3, Uninteruptible Power Supply (UPS) Room Fan Coil
Units (FCUs), small linear indications were discovered on the outer race
of the shielded face of the bearings. The indications are located
circumferentially on the outer perimeter of the shielded face for greater
than 180 degrees. TU Electric documented this deviation on November 30,
1995. The bearings were manufactured by FAFNIR and were provided as
spares for four FCUs, which were provided by Ellis and Watts. These four
FCUs passed receipt inspection and have been installed in the plant,
however, construction is not complete and the FCUs have not been declared
operable. The possibility exists that defective bearings may be
installed in the four FCUs supplied by Ellis and Watts. Operability of
the currently installed UPS Air Conditioning Units is not affected
because these units were supplied by a different vendor (CVI
Incorporated).
TU Electric's evaluation to date has not identified a deviation which
could create a substantial safety hazard. Further evaluation of this
deviation is required and the evaluation will be completed by February
29, 1996.
Energy Plaza 1601 Bryan Street Dallas, Texas 75201-3411
TXX-96034
Page 2 of 2
As required by 10CFR21, TU Electric will notify the NRC if the evaluation
concludes that this deviation could create a substantial safety hazard.
Sincerely,
C. L. Terry
By:
D.R. Woodlan
Docket Licensing Manager
GLM/glm
cc: Mr. L. J. Callan, Region IV
Mr. W. D. Johnson, Region IV
Resident Inspectors, CPSES
*** END OF DOCUMENT ***
Page Last Reviewed/Updated Wednesday, March 24, 2021