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                           IBM ECA
              Engineering Change Announcement

Parts removed from this machine and returned to IBM must be genuine,
                      unaltered IBM Parts

         IBM World Trade Corporation, CE Department Germany
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 EC NUMBER         :  EC341966     DATE             : 89-01-19
 MANDATORY         :  N
 AUTOMATIC SHIPMENT:  N            SERVICE CODE     : 33
 PARTS SOURCE      :  FUJI         AVAILABILITY DATE: 88/12

 ABSTRACT:  EC.341966 FBM 38F4653
                                                                                
 PURPOSE:                                                                       
 THIS ECA IS RELEASED FOR JAPAN USE ONLY                                        
                                                                                

 Type            Machines Affected                              
 Mod. With       and/or Feature/Device     B/M to be  Serv Syst 
 Stg. B/M        Description               Installed  Hour Hour 

 Plant 97                                                       

 5541 B/MBASIC   9933934 THRU 9969397      B/M38F4653 01.0 01.0 
  J08 B/MBASIC   9933609 THRU 9967424      B/M38F4653 01.0 01.0 
  K08                                                           

                                                                                
 PHYSICAL CHECK:                                                                
                                                                                
 PREREQUISITES: NONE                                                            
                                                                                
 COMPANION: NONE                                                                
                                                                                
 CONCURRENT: NONE                                                               
                                                                                
 DETAIL:                                                                        
 IF YOU EXPERIENCE DATA CHECK,DEFECTIVE SECTORS OR FORMAT ERROR                 
 ON HDD IN AFFECTED MACHINE SERIAL RANGE ESPECIALLY IN HIGH                     
 HUMIDITY ENVIRONMENT,INSTALL FBM 38F4653 WHICH IS TO BE REPLAC-
 ED THE HDD.                                                                    
                                                                                
 NOTES:                                                                         
 THE FBM IS AVAILABLE FOR ONE YEAR.                                             
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