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Table 6 Continued 

[[3 column table]]

| Topic | Issue | Response |

| Failures | Significant damage occurs at less than rated energy | Consider downrating energy available in Flight Rules - issue in work (proposed) recent testing and/or new stator provide adequate energy |

|   | Reduced confidence due to large number of failures/damage | Never have failed to stop Orbiter |

| Wheel Lockup | Blown tire resulting in directional control problems | Directional control still available (different braking and NWS), no cases identified which result in high speed lockup |

| Tires Runway Wear | Not an issue |   |

| Derotation | Loads exceed single tire limits; hence, if one tire already deflated second will fail resulting in directional control problem | Nosewheel steering will maintain directional control (tire model dependent) |

| Trajectory Design Exposure Time | Minimize or eliminate exposure by shaping for aborts | TAL abort capability covers a wide range of failures beyond intact abort requirement |

|   |   | Abort shaping will reduce payload capability by several thousand pounds plus leaves no room for weight growth - recommended increasing reserve | 
 
|   |   | Some single payloads require TAL exposure |

-B37-