United States Nuclear Regulatory Commission - Protecting People and the Environment

LICENSEE: THE FOXBORO COMPANY

SITE: THE FOXBORO COMPANY EN NUMBER:36807
DOCKET: EVENT DATE: 03-17-00
RX TYPE: EVENT TIME:
VENDORS: NOTIFY DATE: 03-17-00
EMERGENCY CLASS: N/A REGION: 1 STATE: MA TIME: 09:46

OPS OFFICER: DICK JOLLIFFE

10 CFR SECTION: CCCC UNSPECIFIED PARAGRAPH

PART 21 REPORT - LOSS OF GASKET SEAL INTEGRITY ON FOXBORO TRANSMITTER DISPLAY COVERS

The Foxboro Company has identified a potential defect with certain Foxboro transmitter display covers manufactured between August 1997 and June 1999. These display covers may not be in compliance with the requirements of leech 1P65 nor NEMA Type-4 Environmental Protection, CENELEC (flameproof), CSA and FM (explosion proof) electrical classification requirements are also affected.

A Foxboro investigation was initiated upon the return of a commercial grade display cover which was reported to have lost seal integrity. This investigation found that an unauthorized manufacturing process change occurred between August 4, 1997 (date code 9732) and March 12, 1999 (date code 9911) which allowed an interrupted seal on some portion of the covers manufactured, compromising the environmental and electrical protection requirements.

Foxboro is taking immediate action to notify all customers who purchased this product from The Foxboro Company during the time period affected and to provide replacement covers.

Indian Point Unit 3 and Cook Units 1 and 2 may be affected by this problem.

Foxboro plans to submit a written report to the NRC on this 10 CFR Part 21 Report.

(Call the NRC operations center for contact information.)

Page Last Reviewed/Updated Thursday, March 29, 2012