ML19340C050
| ML19340C050 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 10/06/1980 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| Shared Package | |
| ML19340C048 | List: |
| References | |
| NUDOCS 8011130241 | |
| Download: ML19340C050 (3) | |
Text
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e TENNESSEE VALLEY AUTHORITY CH ATTANOCeGA. TENNESSEE 374ol 400 Chestnet Street Tower II October 6, 1980 q
P l,- l l Mr. James P. O'Reilly, Director Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Region II - Suite 3100 101 Marietta Street Atlanta, Georgia 30303
Dear Mr. O'Reilly:
SEQUOYAH NUCLEAR PLANT UNIT 1 - NRC-0IE REGION II LETTER RII:CJ 50-327/80 INSPECTION REPORT - RESPONSE TO INFRACTION The subject letter dated September 11, 1980, cited TVA with one infrac-tion in accordance with 10 CFR 2.201.
Enclosed is our response to that infraction.
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If you have any questions, please get in touch with D. L. Lambert at FTS 857-2581.
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.I Very truly yours, TENNESSEE VALLEY AUTHORITY JN L. M. Mills, Manager Nuclear Regulation and Safety Enclosure cc:
Mr. Victor Stello, Director (Enclosure)
Office of Inspection and Enforcement U.S. Nuclear Regulatory Cormission Washington, DC 20555 l
An Equal Opportunity Employer L.
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ENCLOSURE SEQUOYAH NUCLEAR PLANT UNIT 1 RESPONSE TO INFRACTION 50-327/80-31-01 Infraction As required by Technical Specification 6.8.1.a, written procedures shall be implemented for activities listed in Appendix "A" of Regulatory Guide 1 33, Revision 2, February 1978. Item 1.d of that appendix addresses procedure adherence and temporary change methods.
Procedure SQA-44 (Standard Practice - Plant Startup Test Program) implements the required procedures at Sequoyah.
Contrary to the above, Paragraph n.1 of SQA-44 was not followed on July 7, 1980 in that during the performance of test SU-7.6 (RCCA Pseudo Ejection at Zero Power) no test deficiency was documented when it was recognized that the control rod reactivity worth measurement data collected during the test was inaccurate.
Corrective Action Taken and Results Achieved SU-7.6, RCCA Pseudo Ejection at Zero Power, called for the worth of.RCCA D-12 to be measured both during withdrawal, RCS boration, and during inser-tion, RCS dilution. This would provide two separate measurements, one as primary data and one as supporting data. The two measurements were j
performed not because of a requirement, but because.the opportunity existed to do so.
RCCA D-12 had to be returned to the fully inserted position before proceeding to the next test.
It was discovered at the end of the RCCA D-12 withdrawal that the vernier scale adjustment for the reactivity strip chart recorder was not in the off position. This caused an erroneous measurement of the worth of RCCA D-12.
It was decided that since a second measurement would be performed a remeas-urement during withdrawal would not be necessary and the validity of the test would not be compromised.
Paragraph 9 1 of SQA-44 (Standard Practice - Plant Startup Test Program),
which implements the requirements of technical specification 6.8.1 and NRC Regulatory Guide 1 33, Revision 2, requires that dany deficiency discovered 1
in a critical system design or performance, or in the method of testing, shall be recorded on a test deficiency sheet, Appendix B, of each startup l
test instruction." There was no problem found with the approved method of 1
testing.
There was no need to obtain a temporary change to the test instruction since adequate procedures for obtaining a second measure of the worth of RCCA D-12 were included in the instruction. During the evaluation of the test results, which included the fact that the reactivity strip chart recorder was not properly adjusted it was determined that the acceptance criterion was satisfied.
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4 TVA does not believe that there was an item of noncompliance. However, to prevent any future items of noncompliance associated with Startup Test Program documentation, TVA has reinstructed employees involved in the testing program on the documentation of these deficiencies.
1 Corrective Action To Be Taken to Avoid Further Noncompliance No further action is planned at this time.
Date When Full Compliance Will Be Achieved We are now in full compliance.
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