ML20080G639
| ML20080G639 | |
| Person / Time | |
|---|---|
| Site: | Byron  |
| Issue date: | 02/02/1984 |
| From: | Farrar D COMMONWEALTH EDISON CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| Shared Package | |
| ML20080G637 | List: |
| References | |
| 8068N, NUDOCS 8402130531 | |
| Download: ML20080G639 (2) | |
Text
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/^N Commonwealth Edison
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) One First N;tiornt Plut. Chic 7go, Illinois
% C 7 Address R; ply to: Post Offica Box 767
'qj Chicago, Illinois 60690 February 2, 1984 Mr. James G. Keppler Regional Administrator U.S. Nuclear Regulatory Commission Region III 799 Roosevelt Road Glen Ellyn, IL 60137
Subject:
Byron Station Unit 1 IE Inspection Report No.
50-454/83-47 Supplemental Response NRC Docket No. 50-454 References (a):
D. L. Farrar letter to J. G. Keppler dated January 23, 1984 (b):
D. L. Farrar letter to J. G. Keppler dated December 30, 1983 (c):
D.L. Farrar letter to J.
G. Keppler dated December 19, 1983 (d):
J.
F. Streeter letter to Cordell Reed dated November 18, 1983
Dear Mr. Keppler:
References (a), (b) and (c) provided the Commonwealth Edison responses to the Reference (d) IE Inspection Report.
The purpose of this letter is to provide a supplemental response to Violation No.
3.
As a result of discussions with Mr. Luis A. Reyes and others of your office, we wish to amend our Reference (c) response to Violation No. 3, and withdraw our request for Region III to withdraw this item of noncompliance.
We believe that the following
. commitments in supplement to the programs and measures implemented at Byron Station as discussed in Reference (c) adequately assure the validity of preoperational test acceptance criteria data.
As discussed in nur Reference (c) response, Byron Station has implemented a requirement to verify that permanently installed instrumentation used to collect acceptance criteria data in preoperational and startup tests is within an 18 month calibration interval.
8402130531 840206
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./ ' Instruments used to collect acceptance criteria data in preoperational tests will be identified to the Byron Station
. Instrument Maintenance Department.
As these instruments are checked for accuracy, the results will be forwarded to the Byron Station
~
. Technical Staff.
If the results indicate that the instruments are out of the tolerances specified, tne Technical Staff will determine the affect on preoperational test data taken with the "out of tolerance" instruments.
If the preoperational test data is outside the acceptance criteria, this data will be re-evaluated to determine
.if.any further action is required.
'All permanently installed instruments used to collect acceptance criteria data in preoperational tests will be evaluated as described above for Byron Station Unit 1 prior to reaching 5%
power.
This-includes permanently installed instruments previously used to collect acceptance criteria data.
With the implementation of the above described evaluations, we believe that further noncompliance will be avoided.
Please address any further questions concerning this matter to this office.
Very truly yours
(-
- h-p Dennis L. Farrar Director of Nuclear Licensing
'8068N
.