 +_____________________________________________________________________
 ] AUTHOR:            ]                             ] DR:              ]
 ] R. DOBSON          ]    PASS PROGRAM NOTE        ]      45751       ]
 ]____________________]                             ]__________________]
 ] ORG/PHONE:         ] OPS NOTE ( )  USER NOTE (X) ] DATE: SEPT. 1987 ]
 ] IBM/282-7330       ]      RELEASE NOTE( )        ] REV C: 03/15/91  ]
 ]____________________]_____________________________]__________________]
 ] OI/FLIGHT EFFECTIVITY:        ]  USER AFFECTED:                     ]
 ] OI20 AND SUBS                 ]  CREW (X)  GROUND ( )  DUMP ONLY ( )]
 ]_______________________________]_____________________________________]
 ]        MAJOR SOFTWARE AREA:       ] OPS MODES AFFECTED:             ]
 ]SSW ( )  GNC (X)  VU ( )  SM/PL ( )] G1, G3                          ]
 ]_____________________________________________________________________]
 ] SOFTWARE SUB-AREA: SEQ                                              ]
 ]_____________________________________________________________________]
 ] PRINCIPAL FUNCTIONS: 4.116                                          ]
 ]_____________________________________________________________________]
 ] TITLE:                                                              ]
 ] ET UMBILICAL DOOR CLOSURE NOT COMPLETED                             ]
 ]_____________________________________________________________________]
 ] DESCRIPTION:                                                        ]
 ]                                                                     ]
 ] ET UMBILICAL DOOR CLOSURE MAY BE INITIATED IN MM 104, 105, OR 106   ]
 ] THROUGH THE OVERRIDE SPECIALIST FUNCTION FOLLOWING ET SEPARATION.   ]
 ] IN SUCH CASES, DOOR CLOSURE IS COMMANDED IN OPS 1 BY THE ET SEP     ]
 ] SEQUENCE.  THE SEQUENCE OF STEPS REQUIRED TO CLOSE AND LATCH THE    ]
 ] ET UMBILICAL DOORS TAKES ABOUT 68 SECONDS.  IF A TRANSITION TO      ]
 ] OPS 2 OR 3 OCCURS BEFORE THE ET SEP SEQUENCE COMPLETES ITS DOOR     ]
 ] CLOSURE PROCEDURE,  THE SEQUENCE WILL STOP PROCESSING.  THIS IS     ]
 ] DUE TO THE FACT THAT THE ET SEP SEQUENCE IS NOT SUPPORTED IN OPS    ]
 ] 2 OR 3.  IF THE ET SEP SEQUENCE STOPS PROCESSING BEFORE COMPLETION, ]
 ] THE ET UMBILICAL DOORS WILL NOT BE CONFIGURED CORRECTLY.  THE LAST  ]
 ] COMMAND SENT TO THE MDM WILL BE COMPLETED; HOWEVER, OTHER COMMANDS  ]
 ] WILL NOT BE SENT BY THE ET SEP SEQUENCE.  FOLLOWING TRANSITIONS     ]
 ] INTO OPS 2, THE DOORS MAY BE CONFIGURED USING REAL TIME COMMANDS.   ]
 ] FOR TAL ABORTS THE DOORS ARE CONFIGURED AUTOMATICALLY IN MAJOR      ]
 ] MODE 304.  FOR OTHER CASES THE DOORS WILL REMAIN IN AN INCORRECT    ]
 ] CONFIGURATION.                                                      ]
 ]_____________________________________________________________________]
 ] USER RESPONSE:                                                      ]
 ] EXCEPT FOR THE TAL ABORT CASE, AN OPS 301 PRO SHOULD BE ENTERED NO  ]
 ] EARLIER THAN 70 SECONDS AFTER AN UMBILICAL DOOR CLOSURE REQUEST     ]
 ] (SPEC 51, ITEM 40).  THIS DELAY ALLOWS THE ET SEP SEQUENCE TO PER-  ]
 ] FORM ITS UMBILICAL DOOR CLOSURE FUNCTIONS AND COMPLETE ITS CLEANUP  ]
 ] AND TERMINATION. THIS CONSTRAINT DOES NOT APPLY TO OPS 2 TRANSI-    ]
 ] TIONS SINCE RTC COMMANDS MAY BE USED TO CONFIGURE THE DOORS IN      ]
 ] OPS 2.                                                              ]
 ]_____________________________________________________________________]
 ]                                                                     ]
 ]CONCURRENCE:                           ]APPROVAL:                    ]
 ]IBM: PATTI A. THORNTON    DATE 05/14/91]                             ]
 ]    --------------------      ---------]                             ]
 ]FDSD:  W. R. PRUETT       DATE 05/14/91]                             ]
 ]     -------------------      ---------]DARRELL E. STAMPER  05/15/91 ]
 ]PF MGR: KENNY TODD        DATE 05/15/91]------------------- -------- ]
 ]       -----------------      ---------] CHAIRMAN, SASCB      DATE   ]
 ]_______________________________________]_____________________________]
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