Headquarters Daily report

                         MAY 11, 1994

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                    REPORT             NEGATIVE            NO INPUT
                    ATTACHED           INPUT RECEIVED      RECEIVED
HEADQUARTERS        X                                      
REGION I                               X                   
REGION II           X                                      
REGION III                             X                   
REGION IV                              X                   
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PRIORITY ATTENTION REQUIRED  MORNING REPORT - HEADQUARTERS MAY 11, 1994

MR Number: H-94-0048

                            NRR DAILY REPORT ITEM
           GENERIC COMMUNICATIONS BRANCH/EVENTS ASSESSMENT BRANCH
                    DIVISION OF OPERATING REACTOR SUPPORT
                    OFFICE OF NUCLEAR REACTOR REGULATION

Subject: N/A

NRC Information Notice 94-34, "Thermo-Lag 330-660 Flexi-Blanket Ampacity 
Derating Concerns," to be issued May 13, 1994.                           
                                                                         
The NRC is issuing this information notice to alert addressees to a      
potential problem involving the use of nonconservative ampacity derating 
data by licensees based on previous representations by the vendor,       
Thermal Science, Inc. (TSI).                                             
                                                                         
Technical contact:  Ronaldo V. Jenkins, NRR                              
                    (301) 504-2985                                       
PRIORITY ATTENTION REQUIRED  MORNING REPORT - REGION II  MAY 11, 1994

Licensee/Facility:                     Notification:

Abbott Health Products, Inc.           MR Number: 2-94-0037
Gamma Sterilization Panoramic Irrad    Date: 05/11/94
Vega Alta,Puerto Rico                                                     
Dockets: 03030578 License No: 52-24994-01  

Subject: False Indication of Failure of Irradiator Source Rack to Return 
         to Fully Shielded Position                                      

Reportable Event Number: N/A

Discussion:

At approximately 3:00 a.m. on May 12, 1994, the licensee notified Region 
II that approximately one hour earlier they experienced a "source up"    
indication on the control console for a pool irradiator.  The indication 
was for the source rack position, and it indicated that the source rack  
had not properly returned to its shielded position in the pool.  The     
licensee indicated that alternate means to determine the position of the 
source including radiation surveys at the irradiation room door and on   
the roof and observation of the cable position at the take-up reels on   
the roof, indicated the source rack was down in the pool.  Based on the  
information showing that the source was in the down position and on      
safety precautions that the licensee would take, NRC Region II agreed    
with the licensee's plan to enter the irradiation room.  Licensee        
personnel safely entered the room, verified that the source was down in  
the pool or shielded position.  The cause of the "source up" indication  
was a short circuit, which had been caused by wear on the electrical wire
insulation. The licensee is replacing the damaged wiring and protecting  
it by wrapping it with conduit to reduce the possibility of recurrence of
this type of incident. The licensee plans to resume operations by noon on
May 12, 1994, after performing system safety checks.                     

Regional Action:

The licensees corrective actions will be reviewed during the next        
inspection.                                                              

Contact:  H. Bermudez                (404)331-7880