SECTION 4
CESSNA
NORMAL PROCEDURES
MODEL 172S NAV III
PREFLIGHT INSPECTION
(Continued)
8 LEFT WING Trailing Edge
1. Aileron - CHECK freedom of movement and security
2. Flap - CHECK for security and condition
BEFORE STARTING ENGINE
1. Preflight Inspection - COMPLETE
2. Passenger Briefing - COMPLETE
3. Seats and Seat Belts - ADJUST and LOCK (Verify inertia
reel locking)
4. Brakes - TEST and SET
5. Circuit Breakers - CHECK IN
6. Electrical Equipment - OFF
7. AVIONICS Switch (BUS 1 and BUS 2) - OFF
CAUTION
THE AVIONICS SWITCH (BUS 1 AND BUS 2)
MUST BE OFF DURING ENGINE START TO
PREVENT POSSIBLE DAMAGE TO AVIONICS.
8. FUEL SELECTOR Valve - BOTH
9. FUEL SHUTOFF Valve - ON (push full in)
STARTING ENGINE (With Battery)
1. Throttle Control - OPEN 1/4 INCH
2. Mixture Control - IDLE CUTOFF (pull full out)
3. STBY BATT Switch:
a. TEST - (Hold for 20 seconds, verify that green TEST
lamp does not go off)
b. ARM - (Verify that PFD comes on)
4. Engine Indicating System - CHECK PARAMETERS (Verify
no red X's through ENGINE page indicators)
5. BUS E Volts - CHECK (Verify 24 VOLTS minimum shown)
6. M BUS Volts - CHECK (Verify 1.5 VOLTS or less shown)
7. BATT S Amps - CHECK (Verify discharge shown (negative))
8. STBY BATT Annunciator - CHECK (Verify annunciator is
shown)
9. Propeller Area - CLEAR (Verify that all people and
equipment are at a safe distance from the propeller)
(Continued Next Page)
I
4-12 U.S.
172SPHAUS-03