 +_____________________________________________________________________
 ] AUTHOR:            ]                             ] SMS: B28621      ]
 ] S. VENITSKY        ]    BFS PROGRAM NOTE         ] DR:  106207      ]
 ]____________________]                             ]__________________]
 ] ORG/PHONE:  RID    ] OPS NOTE ( )  USER NOTE (X) ] DATE: 05/15/91   ]
 ] (213) 922-1921     ]      RELEASE NOTE ( )       ] REV A: 05/24/91  ]
 ]____________________]_____________________________]__________________]
 ] OI/FLIGHT EFFECTIVITY:        ]  USER AFFECTED:                     ]
 ] OI-8C & SUBS                  ]  CREW (X)  GROUND (X)  DUMP ONLY ( )]
 ]_______________________________]_____________________________________]
 ]           MAJOR SOFTWARE AREA:            ] OPS MODES AFFECTED:     ]
 ]BSL( ) BSS(X) GNC( ) SEQ( ) SM/SP( ) IPL( )]     0, 1, 3             ]
 ]_____________________________________________________________________]
 ] SOFTWARE SUB-AREA: PAYLOADS                                         ]
 ]_____________________________________________________________________]
 ] PRINCIPAL FUNCTIONS: MG038101/3.12.3, STS83-0020/4.3.14             ]
 ]_____________________________________________________________________]
 ] TITLE:  PBD REVERSALS                                               ]
 ]                                                                     ]
 ]_____________________________________________________________________]
 ] DESCRIPTION:                                                        ]
 ]                                                                     ]
 ] IF THE PAYLOAD BAY DOOR AUTO SEQUENCE IS STOPPED BEFORE AUTO        ]
 ] COMPLETION AND LATER RESELECTED IN THE SAME DIRECTION, IT WILL      ]
 ] RESUME THE SEQUENCE WHERE IT HAD STOPPED.  IF THE DOORS ARE         ]
 ] REVERSED IN AUTO MODE AND NOT ALLOWED TO GO TO COMPLETION, THE AUTO ]
 ] SEQUENCE SOFTWARE IS NOT UPDATED TO THE CURRENT DOOR POSITION.  THE ]
 ] DOORS WILL BE DRIVEN OUT OF SEQUENCE IF AUTO SEQUENCE IS RESUMED IN ]
 ] THE ORIGINAL DIRECTION.  THIS CAN RESULT IN THE DOORS BEING OPENED  ]
 ] AGAINST THE LATCHES.                                                ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]_____________________________________________________________________]
 ] USER RESPONSE:                                                      ]
 ]                                                                     ]
 ] IF AUTO SEQUENCE IS INTERRUPTED, IT MUST BE ALLOWED TO COMPLETE IN  ]
 ] THE SAME DIRECTION IN THE AUTO MODE WITHOUT REVERSALS, OR, IF A     ]
 ] REVERSAL IS REQUIRED PRIOR TO COMPLETION, THEN ALL PAYLOAD BAY DOOR ]
 ] COMMANDS MUST BE IN THE MANUAL MODE FOR THE REMAINDER OF THE        ]
 ] MISSION.                                                            ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]_____________________________________________________________________]
 ]CONCURRENCE:                           ]APPROVAL:                    ]
 ]RI: <S> C. PURTELL        DATE 05/24/91]                             ]
 ]    --------------------      ---------]                             ]
 ]FDSD:  ROBERT N. HINSON   DATE 06/21/91]                             ]
 ]     -------------------      ---------] DARRELL E. STAMPER 06/25/91 ]
 ]PF MGR:  SCOTT SEYL       DATE 06/19/91]------------------- -------- ]
 ]       -----------------      ---------] CHAIRMAN, SASCB      DATE   ]
 ]_____________________________________________________________________]
 @

