ML20207G956

Notice of Violation from Insp on 880505-0602.Violation Noted:Plant Configuration Discrepancies Not Reported to Technical Supervisor & Depressurization of Sense Lines for Transmitter Done Incorrectly

ML20207G956
Person / Time
Site:	Sequoyah
Issue date:	08/16/1988
From:	Mccoy F NRC OFFICE OF SPECIAL PROJECTS
To:
Shared Package
ML20207G952	List: IR 05000327/1988028 ML20207G949 ML20207G956
References
50-327-88-28, 50-328-88-28, NUDOCS 8808240301
Download: ML20207G956 (2)

Text

L. 9,.. ,

i ENCLOSURE 1 ,

NOTICE OF VIOLATION nnes e Valley Authority Docket Nos.

9Y 50-327),50-328 License Nos. OPR-7 DPR-79 During June 2, the 1988 Nuclear Regulatory Commission (NRC) inspection conducted May 5 -

one vio' ation of NRC requirements was identified. In accordance '

with the "Ge,neral Statement of Policy and Procedure for NRC Enforcement Actions,"10CFRPart2,AppendixC(1988),theviolationislistedbelow-A.

Technical Specification (TS) 6.8.1 requires that procedures recomended in Appendix "A" of Regulatory Guide 1.33, Revision 2, be established, implemented and maintained. This includes maintenance proceduras and '

surveillance instructirns. The requirements of TS 6.8.1 are im>1emented in part by Sequoyah nuclear plant standard practice SQM-2, "Maintenance Managelsent System" and Surveillance Instruction 51-246, "Recalibration Procedure for Reactor Coolant flow Channels".

1.

SQM-2,Section6.2,requiresthatplantconfigurationdiscrepancies be reported to the shift technical advisor immediately.

Contrary to the above, on May 15,.1988, an improper and undesignated butt solice which I was associated H th steam generator No. 3 level indica;or 2 LI-3-97, was found to be at variance with drawing 47E 235 45. This configuration discrepaney was not immediately re to the shift technical advisor as required by SQM-2, Section 6. ported 2.

2.

Surveillance instruction SI-246, requires that after isolating a transmitter to begin the calibration, the sense lines for the transmitter are to be depre3surized via the test tee fittings.

Contrary to the above on May 23,1988 instrument mechanics performing SI-246 depre,ssurized the sense, lines of flow transmitter  :

2-FT-68-71B via the high side drain valve on the bottom of the transmitter. This deviation from procedure created a void in the '

transmitter's high side drain line, causing a pressure drop in the comon high side sense line to flow transmitter 2-FT-68-710 when flow transmitter 2-FT-68-718 was returned to service. This resulted in a Unit 2 reactor trip.

This is a Severity level IV Violation (Supplement I). ,

D 0 7

Tennessee Valley Authority 2 Docket Nos.

Sequoyah 50-327),50-328 License Nos. OPR-7 DPR-79 Pursuant to the provisions of 10 CFR 2.201, Tennessee Valley Authority is hereby required to submit a written statement or explanation to the Nuclear Regulatory Commission, ATTN: Document Control Desk, Washington, DC 20555, with a copy to the Director, Office of Special Projects ar.d a copy to the NRC Resident Inspector, Sequoyah within 30 days of the date of the letter transmitting this Notice. Thls reply should be clearly marked as a "Reply to a Notice of Violation" and should include (for each violation): (1)admissionor decial of the violation, (2) the reason for the violation if admitted corrective steps which have been taken and the results achieved, (d)(3) the the corrective stess which will be taken to avoid further violations, and (5) the date when full compliance will be achieved. Where good cause is shown, consideration will be given to extending the response time.

FOR THE NUCLEAR REGULATORY COMMISSION 4

Frank R. McCoy, Assistant Director for TVA Inspection Programs TVAProjects)ivision OfficeofSpecialProjects Dated at Atlanta Georgia this /6dday of August 1988 2