Part 21 Report - 1997-650
ACCESSION #: 9708150316
Log # TXX-97170
File # 10110
Ref. # 10CFR21
TUELECTRIC
August 11, 1997
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
FAFNIR BEARING DISCREPANCIES
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 refurbishment of a safety related Limitorque actuator, it was
noted that the replacement bearings obtained from the warehouse did not
rotate freely. Other sets of replacement bearings for this actuator
obtained from the warehouse exhibited similar characteristics. TU
Electric documented this deviation on June 12, 1997. The bearings were
manufactured by Fafnir (Fafnir S7K Bearing, RGP2559). These bearings had
previously passed receipt inspection, but had not yet been installed in
the plant.
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 November
11, 1997.
P. O. Box 1002 Glen Rose Texas 76043
TXX-97170
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. E. W. Merschoff, Region IV
Mr. J. I. Tapia, Region IV
Resident Inspectors, CPSES
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