ML19253C455

Responds to NRC 791016 Ltr Re Violations Noted in IE Insp Rept 50-327/79-46.Corrective Actions:Engineer Placed Control Switch in Normal Position & Informed Persons Involved

ML19253C455
Person / Time
Site:	Sequoyah
Issue date:	11/07/1979
From:	Mills L TENNESSEE VALLEY AUTHORITY
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19253C452	List: ML19253C455
References
NUDOCS 7912050602
Download: ML19253C455 (2)

Text

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TENNESSEE VALLEY AUTHORITY CHATTANOOGA TENNESSEE 374o1 400 Chestnut Street Tower II November 7, 1979 C e _, ,

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Mr. James P. O'Reilly, Director **

Office of Inspection and Enforcement N "

U.S. Nuclear Regulatory Commission "

Region II - Suite 3100 101 Marietta Street Atlanta, Georgia 30303

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Dear Mr. O'Reilly:

SEQUOYAH NUCLEAR PLANT UNIT 1 - NRC-0IE REGION II LETTER RII:WTC 50-327/79 INSPECTION REPORT - RESPONSE TO INFRACTION The subject letter dated October 16, 1979, cited IVA with one infraction

, in accordance with 10 CFR 2.201. Enclosed is our response to that infraction.

If you have any questions concerning this matter, please get in touch with D. L. Lambert at FTS 854-2581.

Very truly yours, TENNESSEE VALLEY AUTHORITY hk fl ( h Vs f L. M. Mills, Manager Nuclear Regulation and Safety Enclosure cc: Mr. Victor Stello, Jr., Director (Enclosure)

Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, DC 20555 1504 063

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ENCLOSURE SEQUOYAH hUCLEAR PLANT UNIT 1 RESPONSE TO INFRACTION 327/79-46-01 Description As required by 10 CFR 50 Appendix B, Criterion V, activities affecting qualify shall be accomplished in accordance with documented instructions. .

The licensees accepted QA Program, FSAR Section 17.lA.5 states that activities affecting quality are prescribed by documented instructions in the form of drawings, specifications, and procedures. Administrative Instruction AI-9, Temporary Alterations, which provrues instructions for implementing this requirement, states that alterations will be properly documented and approved.

Contrary to the above, on August 31, 1979, a temporary alteration was identified on the centrol switch for FCV-30-8, a safety related containment purge isolation valve, which met none of the approval and documentation requirements of Administrative Instruction AI-9.

Corrective Action Taken and Results Achieved An operator had secured the control switch for FCV-30-8 in the open position by attaching a rabber band to the switch handle and an adjacent protrusion on the control panel.

This had been done to allow purging of velding and burning smoke from the containment building during a time that an isolation signal was in effect because of incomplete work in the isolation circuitry. This incident did not create a radiation safety problem since there was no fuel in the reactor.

The shift engineer placed the control switch in its normal position upon becoming aware of the alteration and informed the persons involved that this action constituted an alteration of the control circuit and required issuing a temporary alteration form.

Action Taken to Avoid Further Noncompliance The operations group was informed of the incident. The importance of complying with temporary alteration instructions has been discussed with operations employees.

The operator requalification program also provides periodic review of procedures addressing temporary alterations.

Date When Full Compliance Will Be Achieved We are now in full compliance.