United States Nuclear Regulatory Commission - Protecting People and the Environment

ACCESSION #: 9906070115


N L I
NUCLEAR LOGISTICS INC

June 1, 1999

NCR-73-02

Document Control Desk
United States Regulatory Commission
Washington, DC 20555
FAX (301) 816-5151

Subject: Interim Report of a Deviation
Nuclear Logistics presents the following information in accordance with 10CFR21, Section 21.21(a)(2) concerning a deviation, which has been identified.
i) Information submitted by:
      Mr. Aron Seiken
President
Nuclear Logistics Incorporated
7450 Whitehall Street
Fort Worth, TX 76118
Telephone: (817) 284-0077
Facsimile: (817) 590-0484
ii) The item with the deviation is a NLI DC Power Supply, P/N NLI-LGS-G-24-OV-R-8018.
iii) NLI has supplied these power supplies as Class 1E components.
iv) The deviation, which has been identified, is premature over voltage protection actuation in a circuit specific application. The premature over voltage protection actuation occurred during diesel generator start up. Specifically, the premature over voltage protection actuation occurs during diesel generator loading.
v) This issue was determined to be a deviation on April 19, 1999.
vi) These components have been supplied as safety-related components to the following facility:
1) Public Service Electric and Gas Company
vii) To date, NLI has been unable to duplicate the premature over voltage protection actuation during laboratory testing. Data collection and additional testing is being performed to resolve the deviation. If the premature over voltage protection actuation is determined to be the result of the power supply design, other NLI-L series power supplies will be tested to determine their susceptibility to similar conditions. Testing and evaluation activities will be completed on July 16, 1999.
viii) The results of testing to date has been discussed with the cognizant personnel at the facility identified in section vi of this interim report.

Should you require clarification, or additional information, please contact Mr. Archie C. Bell or me.

Very Truly Yours,

Aron Seiken
President

7450 Whitehall o Fort Worth, TX 76118
Telephone (817) 284-0077 o Fax (817) 590-0484


06/01/1999 U.S. Nuclear Regulatory Commission Operations Page 1

Center Event Report

General Information or Other (PAR) Event # 35782
Rep Org: NUCLEAR LOGISTICS INC Notification Date / Time: 06/01/1999 11:07 (EDT)
Supplier: NUCLEAR LOGISTICS INC Event Date / Time: 04/19/1999 (CDT)
Last Modification: 06/01/1999
Region: 4 Docket #:
City: FORT WORTH Agreement State: Yes
County: License #:
State: TX
NRC Notified by: SEIKEN (FAX) Notifications: VERN HODGE(FAX) NRR
HQ Ops Officer: CHAUNCEY GOULD RICHARD CONTE R1
Emergency Class: NON EMERGENCY
10 CFR Section: 21.21 UNSPECIFIED PARAGRAPH

PART 21 DEVIATION IN A NUCLEAR LOGISTICS INC (NLI) DC POWER SUPPLY.

A DEVIATION HAS BEEN IDENTIFIED IN A NLI DC POWER SUPPLY, P/N NLI-LGS-G-24-OV-R-8018 WHICH HAVE BEEN SUPPLIED AS A CLASS 1E COMPONENT, THAT ALLOWS A PREMATURE OVER VOLTAGE PROTECTION ACTUATION TO OCCUR IN A CIRCUIT SPECIFIC APPLICATION. THIS CONDITION OCCURRED DURING DIESEL GENERATOR STARTUP, SPECIFICALLY DURING DIESEL GENERATOR LOADING. THIS ISSUE WAS DETERMINED TO BE A DEVIATION ON 4/19/99, HOWEVER, TO DATE NLI HAS NOT BEEN ABLE TO DUPLICATE THIS CONDITION DURING LABORATORY TESTING. DATA COLLECTION AND ADDITIONAL TESTING IS BEING PERFORMED TO RESOLVE THE DEVIATION. IT THE PREMATURE OVER VOLTAGE PROTECTION ACTUATION IS DETERMINED TO BE THE RESULT OF THE POWER SUPPLY DESIGN, OTHER NLI-L SERIES POWER SUPPLIES WILL BE TESTED TO DETERMINE THEIR SUSCEPTIBILITY TO SIMILAR CONDITIONS. TESTING AND EVALUATION ACTIVITIES WILL BE COMPLETED ON 7/16/99. THESE COMPONENTS HAVE BEEN SUPPLIED AS SAFETY-RELATED COMPONENTS TO PUBLIC SERVICE ELECTRIC AND GAS COMPANY.


*** END OF DOCUMENT ***
Page Last Reviewed/Updated Thursday, March 29, 2012