Now executing ONTC terminal countdown checklist... all systems go...
T-04M55S VERIFY ET/SRB RANGE SAFETY SYSTEM SAFING & ARM
DEVICE ARMED GLS CGLS (Auto)
VERIFY SRM IGNITION SAFING & ARM DEVICE ARMED GLS CGLS (Auto)
TERMINATE LOX REPLENISH GLS CGLS (Auto)
T-04M48S CLOSE LOX INBOARD F&D VALVE GLS CGLS (Auto)
T-04M35S OPEN LOX DRAIN VALVE GLS CGLS (Auto)
T-04M30S MAIN FUEL VALVE HEATERS OFF GLS CMPS
T-04M00S INITIATE SSME PURGE SEQUENCE 4 GLS CGLS (Auto)
T-04M00S PUMP GAS PEDAL TWICE TO PRIME
T-04M00S VERIFY SSME VALVE MOVEMENT IN THE CGLS (Auto) CLOSE DIRECTION
T-03M55S INITIATE ORBITER AERO SURFACES PROFILE CHECK GLS CGLS (Auto)
T-03M30S INITIATE MPS GIMBAL PROFILE CHECKS GLS CGLS (Auto)
TURN STEERING WHEEL RIGHT ONE FULL TURN AND THEN LEFT TWO
FULL TURNS.
PILOT WATCHES IN SIDE VIEW MIRROR FOR PROPER AEROSURFACE AND MPS
MOVEMENT [MPS MOVEMENT VERIFIED BY GROUND USING CCTV]
T-03M03S MPS ENGINES TO START POSITION GLS CGLS (Auto)
VERIFY BODY FLAP TO LAUNCH POSITION GLS CGLS (Auto)
VERIFY "DOOR AJAR" AND "CHECK ENGINE" LAMPS BOTH OFF
T-03M00S SELECT AFT FUSELAGE SAMPLE LINE OTC,CHGD
T-02M55S INITIATE ET LOX PRESSURIZATION GLS CGLS (Auto)
TERMINATE SSME GN2 PURGE GLS CGLS (Auto)
T-02M50S TERMINATE GOX VENT HOOD PURGE GLS CGLS (Auto)
RETRACT GOX VENT HOOD GLS CGLS (Auto)
T-02M35S PRSD TRANSFER TO INTERNAL REACTANTS GLS CGLS (Auto)
T-02M25S DISTRIBUTE 1 STICK BEEMAN'S CHEWING GUM TO EACH CREW MEMBER FOR
ASCENT EAR CANAL PRESSURE EQ.
T-02M00S CLOSE VISORS 212 OTC,CDR CHECK ZIPPER
T-01M57S TERMINATE LH2 REPLENISH GLS CGLS (Auto)
CLOSE LH2 TOPPING VALVE GLS CGLS (Auto)
CLOSE LH2 VENT VALVE GLS CGLS (Auto)
T-01M46S INITIATE LH2 PREPRESS GLS CGLS (Auto)
T-01M40S INITIATE LH2 PRESS GLS CGLS (Rudy)
T-01M30S T-1 MINUTE 30 SECONDS 212 NTD,ALL
ET BIPOD HEATERS OFF GLS CGLS (Auto)
T-01M00S T-1 MINUTE 212 NTD,ALL
T-00M55S PERFORM SRB FWD MDM LOCKOUT GLS CGLS (Auto)
VERIFY SRB MDM CRITICAL COMMANDS GLS CGLS (Auto)
VERIFY SRB MDM UNNECESSARY COMMANDS
T-00M50S GROUND POWER REMOVAL (DO NOT YANK CORD - PULL FROM PLUG)
GLS CGLS (Auto)
T-00M48S CLOSE LOX & LH2 OUTBOARD FILL & DRAIN VALVES GLS CGLS (Auto)
DEACTIVATE SRB JOINT HEATERS
GLS CGLS (Auto)
T-00M31S GLS GO FOR AUTO SEQUENCE GLS CGLS (Auto)
ARM CUT OFF GLS CGLS (Manual)
INITIATE RSL5 GLS CGLS (Auto)
MAKE THE CALCULATIONS FOR THE JUMP TO LIGHTSPEED (R2 UNIT)
ORB VENT DOOR SE9 START GPC CGLS (Auto)
