Cessna SkyHawk SP 172S NAV III 2005 Pilot Operating Handbook page 125

SECTION 4
NORMAL PROCEDURES
CESSNA
MODEL 172S NAV III
BEFORE TAKEOFF
(Continued)
WARNING
WHEN THE KAP 140 AUTOPILOT IS ENGAGED IN
NAV, APR OR REV OPERATING MODES, IF THE
HSI NAVIGATION SOURCE IS CHANGED FROM
GPS TO NAV1, AUTOMATICALLY OR MANUALLY
(USING THE COl SOFTKEY), OR MANUALLY
FROM NAV2 TO GPS, THE CHANGE WILL
INTERRUPT THE NAVIGATION SIGNAL TO THE
AUTOPILOT AND WILL CAUSE THE AUTOPILOT
TO REVERT TO ROLL MODE OPERATION. NO
WARNING CHIME OR PFD ANNUNCIATION WILL
BE PROVIDED. THE PREVIOUSLY SELECTED
MODE SYMBOL SHOWN ON THE AUTOPILOT
DISPLAY WILL BE FLASHING TO SHOW THE
REVERSION TO ROLL MODE OPERATION. IN
ROLL MODE, THE AUTOPILOT WILL ONLY KEEP
THE WINGS LEVEL AND WILL NOT CORRECT
THE AIRPLANE HEADING OR COURSE. SET THE
HOG BUG TO THE CORRECT HEADING AND
SELECT THE CORRECT NAVIGATION SOURCE
ON THE HSI USING THE COl SOFTKEY BEFORE
ENGAGING THE AUTOPILOT IN ANY OTHER
OPERATING MODE.
26. Autopilot - OFF (if installed)
27. CABIN PWR 12V Switch - OFF (if installed)
28. Wing Flaps - UP - 10 0 (10 0 preferred)
29. Cabin Windows - CLOSED and LOCKED
30. STROBE Lights Switch - ON
31. Brakes - RELEASE
14-18 U.S.
172SPHAUS-03