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○ FAILURE MODES FOR WHICH ASRM'S COULD BE USED ARE NOT PROVIDED FOR AFTER 90 SEC IN ASCENT. THEREFORE, DESIGN TO PRECLUDE FAILURE EVENT

○ ASRM'S CAN PROVIDE ABORT CAPABILITY FOR PREMATURE SRB AND ORB SEPARATION AND/OR SRB FAILURE CAUSING T.T. --- FOR FIRST 30 SEC ONLY

○ ASRM'S ADD ADDITIONAL FAILURE MODES

○ ABORT CAPABILITY PROVIDED BY SRB-TVC FOR LOSS OF THRUST OR CONTROL FROM SSME

○ DELETION OF ASRM RESULT IN TOTAL PROGRAM COST SAVING OF 382M AND A COST PER FLIGHT SAVING OF $870,000

FIGURE C4 SUMMARY