 +_____________________________________________________________________
 ] AUTHOR:            ]                             ] DR:              ]
 ]   J. BRADBURY      ]    PASS PROGRAM NOTE        ]       51807      ]
 ]____________________]                             ]__________________]
 ] ORG/PHONE:         ] OPS NOTE ( )  USER NOTE (X) ] DATE: SEPT. 1987 ]
 ] LSIS/713-282-7368  ]      RELEASE NOTE( )        ] REV E: 08/16/95  ]
 ]____________________]_____________________________]__________________]
 ] OI/FLIGHT EFFECTIVITY:        ]  USER AFFECTED:                     ]
 ]  OI-25 AND SUBS               ]  CREW (X)  GROUND ( )  DUMP ONLY ( )]
 ]_______________________________]_____________________________________]
 ]        MAJOR SOFTWARE AREA:       ] OPS MODES AFFECTED:             ]
 ]SSW ( )  GNC (X)  VU ( )  SM/PL ( )] G1, G6                          ]
 ]_____________________________________________________________________]
 ] SOFTWARE SUB-AREA:  ADI, ABORT, GUID                                ]
 ]_____________________________________________________________________]
 ] PRINCIPAL FUNCTIONS:  4.168, 4.2, 4.4                               ]
 ]_____________________________________________________________________]
 ] TITLE: ADI NEEDLES STOWED FROM FINE COUNTDOWN THROUGH ET SEP        ]
 ]_____________________________________________________________________]
 ] DESCRIPTION:                                                        ]
 ]   THE ADI NEEDLES WILL BE STOWED IF GUIDANCE REMAINS UNCONVERGED    ]
 ]   FOR 5 CYCLES (APPROXIMATELY 10 SECONDS).  THEY WILL BE UNSTOWED   ]
 ]   FOR THE FOLLOWING:                                                ]
 ]                                                                     ]
 ]   A. GUIDANCE RECONVERGES FOR 5 CYCLES.                             ]
 ]                                                                     ]
 ]   B. MM 104 OR MM 602 IS REACHED                                    ]
 ]                                                                     ]
 ]   C. IN MM 601, MANUAL GUIDANCE MODE, FINE COUNTDOWN IS REACHED     ]
 ]                                                                     ]
 ]   D. A 2 ENGINE OUT AUTO CONTINGENCY ABORT IS INITIATED EITHER      ]
 ]      MANUALLY VIA ITEM 2 AND ITEM 4 ON THE TRAJ DISPLAY OR          ]
 ]      AUTOMATICALLY BY POWERED CONTINGENCY GUIDANCE DUE TO TWO       ]
 ]      SSME'S CONFIRMED FAILED IN THE MODE 5 CONTINGENCY ABORT REGION.]
 ]                                                                     ]
 ]   E. IN MM 103, DROOP CONTROL BECOMES ACTIVE AND ISSUES STEERING    ]
 ]      COMMANDS.                                                      ]
 ]                                                                     ]
 ]   F. A 3 ENGINE OUT AUTO CONTINGENCY ABORT IS INITIATED.            ]
 ]                                                                     ]
 ]   ONCE STOWED, THE NEEDLES WILL REMAIN STOWED THROUGH MM 103 OR     ]
 ]   MM 601 IF EITHER:                                                 ]
 ]                                                                     ]
 ]   A. FINE COUNTDOWN TO MECO IS REACHED IN MM 103 WITH THE NEEDLES   ]
 ]      STOWED.                                                        ]
 ]                                                                     ]
 ]   B. FINE COUNTDOWN TO PPD IS REACHED IN MM 601 IN AUTO MODE WITH   ]
 ]      THE NEEDLES STOWED.                                            ]
 ]_____________________________________________________________________]
 ]USER RESPONSE:    BE AWARE OF THE ABOVE SCENARIOS.                   ]
 ]_____________________________________________________________________]
 ]CONCURRENCE:                           ]APPROVAL:                    ]
 ]LSIS:   JEAN L. ZOPHY     DATE 09/19/95]                             ]
 ]     -------------------      ---------]                             ]
 ]ASD:   ERIC C. BINGHAM    DATE 09/19/95]                             ]
 ]     -------------------      ---------] DARRELL E. STAMPER 10/16/95 ]
 ]PF MGR:JOHN W. CRAFT,JR.  DATE 10/10/95]------------------- -------- ]
 ]         A. T. HIEMER          10/13/95] CHAIRMAN, SASCB      DATE   ]
 ]_______________________________________]_____________________________]
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