 +_____________________________________________________________________
 ] AUTHOR:            ]                             ] SMS: B22505      ]
 ]   R. LOHMANN       ]    BFS PROGRAM NOTE         ] DR:  101924      ]
 ]____________________]                             ]__________________]
 ] ORG/PHONE:         ] OPS NOTE ( )  USER NOTE (X) ] DATE:  11-9-88   ]
 ]  RI/DNY  X-4164           RELEASE NOTE ( )       ]REV A:  04/03/89  ]
 ]____________________]_____________________________]__________________]
 ] OI/FLIGHT EFFECTIVITY:        ]  USER AFFECTED:                     ]
 ]  OI-7C AND SUBS               ]  CREW (X)  GROUND (X)  DUMP ONLY ( )]
 ]_______________________________]_____________________________________]
 ]           MAJOR SOFTWARE AREA:            ] OPS MODES AFFECTED:     ]
 ]BSL( ) BSS( ) GNC( ) SEQ(X) SM/SP( ) IPL( )]        1                ]
 ]_____________________________________________________________________]
 ] SOFTWARE SUB-AREA: SEQ                                              ]
 ]_____________________________________________________________________]
 ] PRINCIPAL FUNCTIONS: MG038120/3.3.1.3                               ]
 ]_____________________________________________________________________]
 ] TITLE:                                                              ]
 ] POST MECO BFS ENGAGEMENT DURING LO2 PREVALVE CLOSURE                ]
 ]_____________________________________________________________________]
 ] DESCRIPTION:                                                        ]
 ]                                                                     ]
 ] IF BFS IS ENGAGED AFTER MECO HAS OCCURRED, BUT BEFORE THE LO2       ]
 ] PREVALVES ARE SHUT (DURING A 1.078 SECOND TIMER), BFS WILL START    ]
 ] A SECOND 1.078 TIMER AT ENGAGEMENT AND THEN CLOSE THE LO2 PREVALVES ]
 ] WHEN IT HAS EXPIRED. THE LO2 PREVALVES WILL BE CLOSED MORE THAN     ]
 ] 1.078 SECONDS AFTER MECO CAUSING A POSSIBLE EXPLOSION OF THE ENGINE.]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]_____________________________________________________________________]
 ] USER RESPONSE:                                                      ]
 ]                                                                     ]
 ] NO ACCEPTABLE WORKAROUND IS AVAILABLE.                              ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]_____________________________________________________________________]
 ]CONCURRENCE:                           ]APPROVAL:                    ]
 ]RI: <S> C.PURTELL         DATE 04/10/89]                             ]
 ]    --------------------      ---------]                             ]
 ]SSD: SAM ANKNEY           DATE 06/07/89]                             ]
 ]    --------------------      ---------]  JACK G. BOYKIN    06/08/89 ]
 ]PF MGR: D.W. MAY          DATE 06/08/89]------------------- -------- ]
 ]       -----------------      ---------] CHAIRMAN, SASCB      DATE   ]
 ]_____________________________________________________________________]
 @

