ML20043C281

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Responds to NRC 900416 Ltr Re Violations Noted in Insp Repts 50-456/90-09 & 50-457/90-09.Corrective Actions:Gas Partitioners Tested Following Maint During Mar 1990 & Tailgate Training Session Will Be Held
ML20043C281
Person / Time
Site: Braidwood  Constellation icon.png
Issue date: 05/15/1990
From: Kovach T
COMMONWEALTH EDISON CO.
To: Davis A
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
NUDOCS 9006040342
Download: ML20043C281 (3)


Text

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F .. (Ny /) Downers Crove, Illinois 60515 May 15, 1990 x

Mr. A. Bert Davis Regional Administrator U. S. Nuclear Regulatory Commission Region III 799 Roosevelt Road Clen Ellyn, Il 00137

Subject:

Braidwood Station Units 1 and 2 Response to Inspection Reports Nos. 50-456/90-009 and 50/457/90-009 .

NRC Docket Nos. 50-456 and 50-457 References (a) L. R. Greger letter to C. Reed dated April 16, 1990

Dear Mr. Davis:

Reference (a) provided the results of the inspection conducted by M. A. Kunowski from March 13 through March 23, 1990 of activities at Braidwood Station. Reference (a) indicated that certain activities appeared to be in violation of NRC requirements.

The Commonwealth Edison Company response to the Notice of Violation is provided in the Enclosure.

If you have any questions regarding this response please direct them to this office.

Very truly yours,

( ppJ T. // Kovach Nuclear Licensing Manager Enclosure (235/ZCBW90) $ O(

cc: NRC Resident Inspector - Braidwood {

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NRC Document Control Desk (

9006040342 900515 PDR - ADOCK 050004'36 Q PDC

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ENCLOSURE COPMONWEALTil EDISON COMPANY'S

, RESPONSE TO INSPECTION REPORT NOS. 456/900QR_anLMll20009  ;

VI01ATION:

Technical Specification 6.8.4.d.3 requires that a program be implemented to ensure the capability of the post-accident sampling equipment to obtain containment atmosphere samples under accident conditions. j Licensee procedure, NO Directive NOD-CY.5, " Post Accident Sampling i System Surveillance Frequency," specifies that the gas partitioner of the containment atmosphere sampling system will be operated quarterly to ensure the operability of the post accident sampling system.

Contrary to the above, the Unit 1 gas partitioner was not operated between March 1987 and February 1990, and the Unit 2 gas partitioner was operated once in 1988 and once in 1989.

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RESPONSE

Commonwealth Edison (Edison) acknowledges that the Unit 1 gas t partitioner was not operated between March 1987 and February 1990, i and the Unit 2 gas partitioner was operated once in 1988 and once in 1989. NO Directive NOD-CY.5 Rev. O requires that a simulated sample capture using the gas partitioner be performed guarterly and a sample  ;

capture be performed once per fuel cycle. No documentation exists I indicating that these requirements were met.

The inspection report suggests that inadequate training may be the i root cause of this violation. Edison believes that improper  !

scheduling of the surveillance requirements contributed to this  ;

violation. The chemistry technicians are trained on the operability of the Post Accident Sampling System during their annual requalification training.

CORRECTIVE ACTION TAKEN AND RESULTS ACHIEVEJ: ,

The gas partitioners for Unit 1 and Unit 2 were tested following maintenance during March 1990. The Unit I surveillance test showed t full capability for the Unit 1 gas partitioner including automatic operation. The Unit 2 surveillance test identifled additional maintenance needs for which Nuclear Work Requests (NWRs) were written to address the Unit 2 partitioner's automatic operation.

Completion of the NWRs will allow automatic operation of the Unit 2 gas partitioner, although gas partitioner is fully capable of being operated in the manual mode. The NWRs are expected to be completed by July 15, 1990.

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. CORRECTIVE ACTION TAKEN TO AVOID FURTHER VIOLATION:

The requirement to perform a quarterly survelliance demonstrating i compliance with NO Directive NOD-CY.5 on the Unit 1 and Unit 2 gas partitioners was added to Braidwood Station's General Surveillance i System. This is.a computer based program that tracks surveillance requirements. This will enable Braidwood Station to track completion of this surveillance on a quarterly basis.

A tailgate training session will be held with appropriate chemistry personnel to review this violation and corrective actions taken.

DATE OF FULL COMPLIANCE:

The tailgate training is expected to be completed by June 1,1990.

The work on the Unit 2 gas partitioner is expected to be completed by July 15, 1990.

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