Approach Capture - Cessna 172S NAV III Pilot Operating Handbook

CESSNA
MODEL 172S NAV III
SECTION 9 - SUPPLEMENTS
SUPPLEMENT 3
NORMAL PROCEDURES
(Continued)
NOTE
Changing from GPS to ILS includes tuning the NAV 1
active frequency to the correct LOC frequency,
slewing the course pointer to the applicable final
approach course magnetic heading and changing the
CDI to NAV 1 while keeping the autopilot in APR
mode. The G1000 will do this automatically if ILS
CDI Capture is set to AUTO
Roll Steering will only operate on instrument approach procedures
selected from a current GPS aeronautical database when:
1. The autopilot is engaged in NAV or APR mode.
2. GPS is shown as the navigation source on the HSI.
NOTE
• Make sure that the applicable GPS mode is set
during each portion of the approach procedure
selection symbol (NAV, APR or REV) flashing on
the face of the autopilot.
• If either the GPS or VHF navigation signal, as
applicable, fails when the autopilot is engaged in
NAV, APR or REV mode, the autopilot will change
back to ROL mode operation. ROL mode
operation is shown by the previous mode
APPROACH
(APR) CAPTURE (LOCK ON)
1. BARO - SET current local barometric pressure (altimeter).
2. CRS Pointer - SET the HSI course pointer to the desired
magnetic course using the CRS knob on the PFD.
NOTE
If operating GPS-Direct (Direct-to) or on an active
GPS Flight Plan, the course pointer will be
automatically set by the G1000.
FAA APPROVED
172SPHAUS-S3-00
(Continued Next Page)
U.S. S3-39