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  AUTHOR:                                          DR:              
    L. HOLLAND           PASS PROGRAM NOTE              106961      
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  ORG/PHONE:          OPS NOTE (X)  USER NOTE ( )  DATE:            
  IBM/(713)282-7305        RELEASE NOTE( )              07/22/93    
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  OI/FLIGHT EFFECTIVITY:          USER AFFECTED:                     
    OI-23                         CREW (X)  GROUND ( )  DUMP ONLY ( )
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         MAJOR SOFTWARE AREA:        OPS MODES AFFECTED:             
 SSW ( )  GNC (X)  VU ( )  SM/PL ( ) G1                              
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  SOFTWARE SUB-AREA:  SEQ, MPS, ASCENT                                
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  PRINCIPAL FUNCTIONS:  4.181, 4.70, MSC                              
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  TITLE:                                                              
        SSME SOP TERMINATE FLAG NOT SET AFTER MPS DUMP STOP           
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  DESCRIPTION:                                                        
                                                                      
     WHEN THE MAIN ENGINE CONTROLLERS ARE POWERED OFF AT APPROX       
     MECO + 10 MINUTES, THE SSME SOP WILL ISSUE MAIN ENGINE FLIGHT    
     DATA PATH FAILURES BECAUSE THE TIME REFERENCE WORD FROM THE      
     EIU'S WILL BE STATIC.  THESE FAILURES WILL CAUSE THREE CLASS-3   
     MESSAGES TO BE ANNUNCIATED BY GAX:                               
              MPS DATA     L                                          
              MPS DATA     R                                          
              MPS DATA     C                                          
                                                                      
                                                                      
                                                                      
                                                                      
                                                                      
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 USER RESPONSE:                                                       
                                                                      
     IGNORE THE MESSAGES.                                             
                                                                      
                                                                      
                                                                      
                                                                      
                                                                      
                                                                      
                                                                      
                                                                      
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 CONCURRENCE:                           APPROVAL:                    
 IBM:  JEAN L. ZOPHY       DATE 09/07/93                             
     --------------------      ---------                             
 FDSD:   W. R. PRUETT      DATE 09/09/93                             
      -------------------      --------- DARRELL E. STAMPER 09/13/93 
 PF MGR:  DAVE RIGBY       DATE 09/10/93------------------- -------- 
          KENNY TODD            09/10/93 CHAIRMAN, SASCB      DATE   
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