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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         :  ECC27238     DATE             : 90-04-19
 MANDATORY         :  N
 AUTOMATIC SHIPMENT:  N            SERVICE CODE     : 33
 PARTS SOURCE      :  FUJI         AVAILABILITY DATE: 90/04
                                                                                
 PURPOSE:                                                                       
 THIS ECA IS RELEASED FOR JAPAN USE ONLY                                        
 TO PREVENT DISKETTE READ ERROR DUE TO DUST, REPLACE 3.5"FDD                    
 BY IT W/SHUTTER.                                                               
 THIS PROBLEM WILL DEPEND ON CUSTOMER'S OFFICE ENVIRONMENT.                     
                                                                                

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

 Plant                                                          

 5551                                                           
  S09 B/MBASIC   9700001 THRU 972412B      B/M56F9013 00.4 00.4 
  S0A B/MBASIC   970000F THRU 973993F      B/M56F9013 00.4 00.4 
  T09 B/MBASIC   9730001 THRU 976849K      B/M56F9013 00.4 00.4 
  T0A B/MBASIC   9760001 THRU 979162N      B/M56F9013 00.4 00.4 
  T0B B/MBASIC   9790001 THRU 971088S      B/M56F9013 00.4 00.4 
  V0A B/MBASIC   97Q0001 THRU 97Q8813      B/M56F9013 00.4 00.4 
  V0B B/MBASIC   97W0001 THRU 97W2434      B/M56F9013 00.4 00.4 

                                                                                
 PHYSICAL CHECK:                                                                
 CHECK 3.5"FDD OF SYSTEM UNIT.                                                  
 IF 3.5"FDD WITHOUT SHUTTER IS USED, REPLACE BY IT W/SHUTTER.                   
                                                                                
 PREREQUISITES: NONE                                                            
                                                                                
 COMPANION: NONE                                                                
                                                                                
 CONCURRENT: NONE                                                               
                                                                                
 DETAIL:                                                                        
 REPLACE 3.5"FDD AND BEZEL.                                                     

 NOTES:                                                                         
 THE FBM IS AVAILABLE FOR ONE YEAR.                                             
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