Cessna SkyHawk SP 172S NAV III 2005 Pilot Operating Handbook page 154

CESSNA
MODEL 172S NAV III
SECTION 4
NORMAL PROCEDURES
HOLDING PROCEDURE TURNS AND MISSED
APPROACHES
(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 ROL MODE OPERATION. NO
WARNING CHIME OR PFD ANNUNCIATION IS
PROVIDED. THE PREV10USLY SELECTED MODE
SYMBOL SHOWN ON THE AUTOPILOT DISPLAY
WILL BE FLASHING TO SHOW THE REVERSION
TO ROL MODE OPERATION. IN ROL 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.
Other VHF NAV-based Instrument Approach Procedures (VOR,
LOC, LOC BC) require the pilot to manually tune and identify the
NAV facility, select the corresponding NAV source on the HSI and
set the HSI course pointer to the final approach course. See the
G1000 Cockpit Reference Guide for additional information.
On reaching the Missed Approach Point (MAP), the G1000
FMS/GPS will automatically go into suspend (SUSP) mode but will
continue to provide course guidance along the extended runway
centerline. After the pilot stabilizes the airplane in climb, SUSP
mode may be deselected using the SUSP softkey and the G1000
FMS/GPS will provide course guidance to the Missed Approach
Holding Point (MAHP). On reaching the MAHP, the pilot may elect
to hold (as noted above) or may select another lAP. See the G1000
Cockpit Reference Guide for additional information.
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172SPHAUS-03
U.S. 4-45