Passageway 101.6.

— MAIN COMBUSTION CHAMBER 7 — FUEL PREBURNER VALVE 15 — ORBITER TARGET AIM POINT 16 — PARKING APRON 17 — RF COMMUNICATIONS TOWER 18 — TELEVISION TOWER AND EQUIPMENT ...................... 5-1 6 MISSION OPERATIONS DECK DISPLAYS AND CONTROLS BREAKDOWN Display or control Quantity.