Part 21 Report - 2001-261

SCIENTECH

910 Clopper Road .Gaithersburg, MD 20878-1399. Phone: 301-258-2410. Fax: 301-258-2463

September 12, 2001

NRC Operations Center
Document Control Desk
1 White Flint North
11555 Rockville Pike
Bethesda, MD 20852

Subject: DEFECT UNDER 10CFR21
Reference NUSI File 21-01-01

Dear Sir or Madam:

The NRC Operations Center Duty Officer was sent a preliminary notification by facsimile on August l3, 2001, indicating that SCIENTECH, Inc.'s subsidiary NUS Instruments, Inc. (NUSI) had determined that a Basic Component, supplied to Rochester Gas & Electric Ginna Station Nuclear Plant may contain a defect reportable under the provisions of 10CFR2l. An evaluation had been initiated and a formal report was to be provided to the NRC within 30 days of the preliminary notification.

The Basic Component is a T and Tave Time Domain Module used to calculate the differential and average temperature of the primary coolant across the core. The module is NUS Instruments Model No. TMD500-08/08/08/08-08-08-01/2, Part No. MBA-E063PA-1, Rev.0. These components have not been supplied to any other utility for use in Safety Related Systems.

Enclosed please find SCIENTECH, Inc.'s subsidiary NUS Instruments, Inc. (NUSI) formal report as a follow up to the preliminary notice.

If you have questions or comments, please feel free to contact us at the numbers listed below.

Sincerely,

Paul Loch
President/COO, SCIENTECH, Inc.
(407) 333-8895

Martin Booska,
Director, Quality Operations
(301) 387-7012

Copy: Mr. Rudy Forgensi, Director, Operating Experience, Rochester Gas and Electric Corporation 1503 Lake Road, Ontario, New York 14519, (Fax 716-771-3325)

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