•  Fire extinguisher operation, if so equipped. •  All safety systems, as required. •  Use restroom before entering aircraft.  •  Demonstrate and practice what passengers can hold  onto, and what not to touch. •  Demonstrate and practice positive exchange of  controls. •  Remove safety pin for ballistic chute operation. •  Install helmet (if applicable) and headphones. •  Check intercom and radio communications systems. •  Install eye protection (safety glasses, helmet  shields). •  Key in, ignition on, master power on •  Check gauges for operation and fuel level. •  Fuel pump on (or pump fuel bulb to fi ll carburetor  bowls) •  System switches on. (Some WSC have specifi c system  switches turned on after the engine is started because  engine starting may create lower voltage possibly  damaging instruments or systems. If in doubt, start  engine and than turn on instruments and systems not  needed for starting.)  •  Both ignition systems switches on •  Choke/enrichener on (or pump primer as  appropriate) • Throttle closed • Brakes on •  Ensure propeller area is cleared, loudly announce  to propeller area “Clear prop,” and wait for any  response. •  Start engine through pull cord start or electric start  (do not try to hand prop under any circumstances)  •  Ensure the aircraft does not move, keeping hands on  ignition switches for quick shutdown, if necessary. •  Adjust throttle, choke or enrichener to keep engine  running smoothly. •  Seats adjusted for full operation of all controls. •  Seats locked into position. •  Put on seat belts (lap fi rst, then shoulder) and adjust  so all controls and systems can be fully operated. •  Check all control systems for proper operation. •  Check all systems operations. •  Demonstrate and practice flight and emergency  equipment and procedures. After entering the flight deck, the pilot should first ensure that  all necessary equipment, documents, checklists, and navigation  charts appropriate for the flight are on board.  [Figure 5-63]  If a  portable intercom, headsets, or a hand-held global positioning  system (GPS) is used, the pilot is responsible for ensuring  that the routing of wires and cables does not interfere with  the motion or the operation of any control. Regardless of what materials are to be used, they should  be neatly arranged and organized in a manner that makes  them readily available. The flight deck should be checked  for articles that might be tossed about if turbulence is  encountered, and any loose items properly secured.  When the pilot is comfortably seated, the safety belt and  shoulder harness (if installed) should be fastened and adjusted  to a comfortably snug fit. The safety belt must be worn at all  times the pilot is seated at the controls.  It is important that a pilot operates an aircraft safely on the  ground. This includes being familiar with standard hand  signals that are used universally for ground operations.  [Figure 5-64]  The specific procedures for engine start vary greatly since  there are as many different methods as there are engines, fuel  systems, and starting conditions. The engine start checklist  procedures in the POH should be followed. The following  are some basic steps that apply to most aircraft:  Flight Deck Management  Engine Start  Checklist After Entering Flight Deck Figure 5-63. Pilot fastens helmet and reviews checklist while in  flight deck. 5-23