Event Notification Report for March 14, 2003

10 CFR PART 21 REPORT REGARDING FAILURES OF ABB CIRCUIT BREAKERS

Circuit breakers manufactured by ABB Inc. and used for Class 1E applications by Westinghouse were shipped to the Calvert Cliffs Plant with model 5 operating mechanisms installed. Recently, Westinghouse had retrofitted the breakers with model 7 operating mechanisms manufactured by ABB Inc. Westinghouse validated that the original breaker qualifications (for Class 1E applications) are still applicable with the model 7 operating mechanism installed. Two of these breakers failed to close and latch during testing at Calvert Cliffs. The first breaker failed to close and latch during acceptance testing on January 18, 2003. The second breaker failed to close and latch during its installation acceptance test in the breaker cubicle on January 27, 2001.

* * * UPDATE VIA FAX ON 12/24/03 AT 15:25 CST BY ABB INC * * *

Summary: The issue reported in the notification above is limited in scope and there is no indication that the failure mode will exist in a K-Line breaker. ABB does concur that dimensional non-conformities were present in the breakers that exhibited the fail to close of the primary and secondary trip latches. ABB also concurs that this out-of-tolerance situation is contributory to the failure exhibited in the 5VHKR250 1200A breaker but is not in and of itself the root cause of failure.

Notified R1DO (R. Lorson), R2DO (M. Ernstes), R3DO P. Louden), R4DO (L. Smith), NRR (Jack Foster) via email

ILLINOIS AGREEMENT STATE REPORT ON LOST SOURCE

"On March 13, 2003 the RSO of Cook County Hospital called the Illinois Northern Regional office to report that an Sr-90 eye applicator source was missing from its storage location along with some exempt quantity calibration and reference sources and some associated records. A thorough survey of the facility had been conducted the previous two days with no success. This hospital is going through the process of relocating to new facilities immediately adjacent to the existing site. At first it was thought that these sources had been moved with other brachytherapy sources and had been merely overlooked in the transition. Further inspection showed that was not the case. Apparently the source has been mistakenly removed during efforts to clean and prepare the area for occupancy by another hospital department. This probably occurred at the end of January 2003 based on interviews with several associated individuals. The room where the source cabinet had been stored had been cleaned and its contents sent for disposal or relocation to the new oncology department on January 30 and 31. The Department sent an inspector to the facility the next morning, 14 March, to conduct interviews, perform monitoring, verify the extent of the search efforts undertaken to this point and make an independent evaluation of the reported fate of the device. Surveys of several areas with a variety of appropriate rate meters and probes including old and new storage locations, oncology departments, shipping and receiving docks, waste handling locations and nuclear medicine departments were unsuccessful in recovery of the applicator. Interviews with the RSO, facility medical director, radiation oncologist, supervisory radiation technician and individuals who performed the clean out work do not provide any additional information as to the fate of the source as all state that they did not remove the source from its storage cabinet. The source was initially 35 milliCuries in 1955 and has since decayed to approximately 11 millicuries to date. The source does not appear in the NRC SSDR due to its age. The manufacturer is listed as TRAUSLAT with model number RA-1 and a serial number of 183. Given the situational circumstances, the existing presence of nearby brachytherapy sources of Cs-137 and a teletherapy source in the area, the limited access to the room, control of keys, and the disappearance of records along with check sources leads the RSO as well as the Department inspector to believe that the eye applicator and exempt quantity reference sources were inadvertently disposed as waste back in late January 2003. There is a slight potential that the material may be discovered in the hospital as the various departments continue their relocation to new facilities. The licensee will file the required report and the department will take appropriate action based on additional information received. Event reported to NRC Operations Center on at 1713 ET 14 March 2003 and assigned event number 39671."