Cessna SkyHawk SP 172S NAV III 2005 Pilot Operating Handbook page 354

CESSNA
MODEL 172S NAV III
SECTION 9 - SUPPLEMENTS
SUPPLEMENT 3
r
. ,
NORMAL PROCEDURES
(Continued)
NOTE
Make sure that the elevator Trim Tab moves down
with nose up elevator trim (LH
&
RH Switches held
in the UP position) movement. If the elevator trim
wheel moves while the AlP DISCfTRIM INT Switch is
pushed and held, the Manual Electric Trim System
has failed. The airplane may be flown if the AUTO
PILOT Circuit Breaker is secured in the open
position so that the autopilot is disconnected from
electrical power and will not operate until it is
repaired.
4. BARO Setting flashing - SET current local barometer
(atmospheric pressure) using knobs or push BARO button to
accept the present setting.
5. AUTOPILOT - ENGAGE (push and hold AP button for 1
second).
6. FLIGHT CONTROLS - MOVE. Make sure that the autopilot
can be overpowered in both pitch axis and roll axis.
7. AlP DISCfTRIM INT Switch - PUSH. Make sure that the
autopilot disengages. Make sure that the disengagement
warning sound is heard.
(Continued Next Page)
FAA APPROVED
172SPHAUS-S3-00
U.S. S3-25