ML20212K932

Special Rept;On 870215,wide-range Noble Gas Monitor Taken Out of Svc for Mod to Demonstrate Capability to Test for Radioiodine,Per TMI Action Plan Item II.F.1.Mod Scheduled for Completion by mid-Mar 1987

ML20212K932
Person / Time
Site:	Byron
Issue date:	02/27/1987
From:	Querio R COMMONWEALTH EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
RTR-NUREG-1113, TASK-2.F.1, TASK-TM BYRON-87-0251, BYRON-87-251, NUDOCS 8703090460
Download: ML20212K932 (2)

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' y3 tug FILE: 2.7.400 Mr. James Keppler Regional Administrator Region III U. S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Illinois 60137 This Special Report is submitted in accordance with Byron Station's Operating Licenses NPF-37 and NPF-66, Appendix A, Technical Specification (NUREG

- 1113) Section 3.3.3.6, Action C.

This Action statement requires, in part, that with the number of operable auxiliary building vent stack wide range noble gas monitors less than the minimum number required, the following be performed.

. During the period in which the monitor is inoperable, initiate an alternate method to monitor the appropriate parameters.

. Submit a Special Report to the Commission if the monitor is not returned to operable status within seven (7) days.

On February 15,1987, the Byron Unit 2 wide range noble gas monitor,2PR30J, was taken out of service for modification. This modification is intended to demonstrate the capability to sample for gaseous radiciodine, in conformance with TMI Action Plan Item II.F.1. The completion of this modification is scheduled for mid March at which time the Byron Unit I wide range noble gas monitor, IPR 30J, will be taken out of service for installation of the same modification. Scheduled completion for the Unit 1 modification is the end of March 1987.

During the period of time that these monitors, IPR 30J/2PR30J, are out of service, l alternative monitoring will be accomplished by the particulate iodine dual range gas momtor, IPR 28J/2PR28J.

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l 8703090460 870227 PDR ADOCK 05000454 S PDR MAR 3 1987 3o / h0

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• BYRON 87-0251 Page 2 Completion of this modification to the wide range noble gas monitors will eliminate the concern expressed in SER Supplement No. 5 Section 11.5 and satisfy Byron License NPF-37 condition C.8.

This report has been prepared by the Regulatory Assurance Department with information provided by the Technical Staff.

W R. E. Querlo Station Manager Byron Nuclear Power Station REQ /JC/bf cc: J. Ilinds, NRC Resident Inspector U.S. NRC Document Control Desk, Washington, D.C.

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1. 44/047