Cessna SkyHawk SP 172S NAV III 2005 Pilot Operating Handbook page 345

SECTION 9 - SUPPLEMENTS
SUPPLEMENT 3
CESSNA
MODEL 172S NAV III
EMERGENCY PROCEDURES
(Continued)
i
c. AIRPLANE - TRIM manually as needed.
d. AUTO PILOT Circuit Breaker - OPEN (pull out).
WARNING
FOLLOWING AN AUTOPILOT, AUTOTRIM OR
MANUAL ELECTRIC TRIM SYSTEM MALFUNCTION,
DO NOT ENGAGE THE AUTOPILOT UNTIL THE
CAUSE OF THE MALFUNCTION HAS BEEN
CORRECTED.
NOTE
The AVIONICS BUS 2 switch may be used to de-
energize the autopilot and electric trim systems. If
necessary, do steps a. thru c. above, set the AVIONICS
BUS 2 switch to the OFF position then locate and open
(pull) the AUTO PILOT circuit breaker. Then the
AVIONICS BUS 2 switch can be set to the ON position
to restore power to the other avionics equipment on
AVN BUS 2. Primary attitude, airspeed, directional
compass, and altitude instruments will continue to
operate when the AVIONICS BUS 2 switch is OFF.
Maximum Altitude losses due to autopilot malfunction:
ALTITUDE LOSS (feet)
350 feet
100 feet
90 feet
CONFIGURATION
Cruise, Climb or Descent
Maneuvering
Approach
AMPUAEDEMERGENCYPROCEDURES
The following paragraphs provide additional information for more
complete understanding of the recommended course(s) of action in
emergency situations.
(Continued Next Page)
S3-16 U.S.
FAA APPROVED
172SPHAUS-S3-00