CESSNA SECTION 4
MODEL 172S NAV III NORMAL PROCEDURES
GFC 700 AFCS
U.S.
STARTING ENGINE (With Battery) (Continued)
17. Oil Pressure - CHECK (verify that oil pressure increases into the
GREEN BAND range in 30 to 60 seconds)
18. AMPS (M BATT and BATT S) - CHECK (verify charge shown
(positive))
19. LOW VOLTS Annunciator - CHECK (verify annunciator is not
shown)
20. NAV Light Switch - ON as required
21. AVIONICS Switch (BUS 1 and BUS 2) - ON
STARTING ENGINE (With External Power)
1. Throttle Control - OPEN 1/4 INCH
2. Mixture Control - IDLE CUTOFF (pull full out)
3. STBY BATT Switch:
a. TEST - (hold for 10 seconds, verify green TEST lamp does
not go off)
b. ARM - (verify that PFD comes on)
4. Engine Indication 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. AVIONICS Switch (BUS 1 and BUS 2) - OFF
10. MASTER Switch (ALT and BAT) - OFF
11. Propeller Area - CLEAR (verify that all people and equipment
are at a safe distance from the propeller)
12. External Power - CONNECT (to ground power receptacle)
13. MASTER Switch (ALT and BAT) - ON
14. BEACON Light Switch - ON
15. M BUS VOLTS - CHECK (verify that approximately 28 VOLTS is
shown)
If engine is warm, omit priming procedure steps 16 thru 18.
16. FUEL PUMP Switch - ON
(Continued Next Page)
172SPHBUS-02
4-13
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