United States Nuclear Regulatory Commission - Protecting People and the Environment


LICENSEE: ENERTECH                           

SITE: ENERTECH                              EN NUMBER:31994

DOCKET:                                  EVENT DATE: 03-21-97

RX TYPE:                                 EVENT TIME: 00:00

VENDORS:                                NOTIFY DATE: 03-21-97

EMERGENCY CLASS: N/A  REGION: 4 STATE: CA      TIME: 17:40

OPS OFFICER: JOHN MacKINNON           

10 CFR SECTION: CCCC  21.21               UNSPECIFIED PARAGRAPH



POTENTIAL REPORTABLE DEFECT IN BW/IP ELECTRO-HYDRAULIC ACTUATORS 

(MODEL NUMBER 88500) TO PROPERLY OPERATE ON DEMAND AT THE MCGUIRE

STATION.                                                         

                                                                 

ENERTECH LOCATED AT 2950 BIRCH STREET, BREA, CA., SUBMITTED THE  

FOLLOWING INFORMATION VIA A FACSIMILE:                           

                                                                 

"MCGUIRE IS PERFORMING A ROOT CAUSE INVESTIGATION AND IS         

COMMUNICATING WITH THE HYDRAULIC FLUID MANUFACTURER FOR          

ASSISTANCE.  ENERTECH HAS PERSONNEL ON-SITE ASSISTING THE MCGUIRE

PERSONNEL AND IS IN CONTACT WITH THE ACTUATOR MANUFACTURER.      

BW/IP (THE ACTUATOR MANUFACTURER) IS IN THE PROCESS OF EVALUATING

THIS EVENT UNDER ITS 10 CFR PART 21 PROGRAM.                     

                                                                 

IT IS SUSPECTED THAT THE HYDRAULIC FLUID TEMPERATURE INSIDE THE  

PLUNGER OF THE SOLENOID VALVE EXCEEDED THE MANUFACTURERS         

RECOMMENDATIONS FOR CONTINUOUS OPERATION AND AFFECTED THE        

PERFORMANCE OF THE ACTUATOR."                                    



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