SECTION 4
CESSNA
NORMAL PROCEDURES
MODEL 172S NAV III
PREFLIGHT INSPECTION
(Continued)
1 CABIN (Continued)
17. AVIONICS Switch (BUS 1) - OFF
18. AVIONICS Switch (BUS 2) - ON
19. Aft Avionics Fan - CHECK (Verify fan is heard)
20. AVIONICS Switch (BUS 2) - OFF
21. PITOT HEAT Switch - ON (Carefully check that pitot tube is
warm to the touch within 30 seconds)
22. PITOT HEAT Switch - OFF
23. LOW VOLTS Annunciator - CHECK (Verify annunciator is
shown)
24. MASTER Switch (ALT and BAT) - OFF
25. Elevator Trim Control - TAKEOFF position
26. FUEL SELECTOR Valve - BOTH
27. ALT STATIC AIR Valve - OFF (push full in)
28. Fire Extinguisher - CHECK (Verify gage pointer in green
arc).
2 EMPENNAGE
1. Baggage Door - CHECK (lock with key)
2. Autopilot Static Source (if installed) - CHECK (Verify opening
is clear)
3. Rudder Gust Lock (if installed) - REMOVE
4. Tail Tiedown - DISCONNECT
5. Control Surfaces - CHECK freedom of movement and
security
6. Elevator Trim Tab - CHECK security
7. Antennas - CHECK for security of attachment and general
condition
3 RIGHT WING Trailing Edge
1. Flap - CHECK for security and condition
2. Aileron - CHECK freedom of movement and security
(Continued Next Page)
I
4-8 U.S.
172SPHAUS-04