SECTION 9 - SUPPLEMENTS
CESSNA
SUPPLEMENT 3
MODEL 172S NAV III
KAP 140 AUTOPILOT
U.S.
FAA APPROVED
EMERGENCY PROCEDURES
(Continued)
AMPLIFIED EMERGENCY PROCEDURES
(Continued)
Trim system voice messages will be provided for the following flight
conditions:
1. TRIM IN MOTION - Elevator trim runs for more than 5 seconds,
message repeats every 5 seconds.
2. CHECK PITCH TRIM - An out of trim condition has existed for
approximately 20 seconds, take immediate corrective action:
a. Airplane Control Wheel -
GRASP FIRMLY
and regain
control of airplane.
b. A/P DISC/TRIM INT Switch -
PUSH
and
HOLD
throughout
recovery.
c. AIRPLANE -
TRIM
manually as needed.
d. AUTO PILOT Circuit Breaker -
OPEN
(pull out).
NOTE
Emergency procedures for any malfunction are essentially
the same: immediately grasp the control wheel and regain
control of airplane while pushing and holding the A/P DISC/
TRIM INT switch, then trim the airplane as needed. After
these steps have been accomplished, secure the autopilot
electric trim system by pulling the AUTO PILOT circuit
breaker. As with any airplane emergency procedure, it is
important that these 4 steps of the recovery procedure be
committed to memory.
3. The AVIONICS switch (BUS 2) may be used to remove all
electric power from the autopilot and electric trim systems while
the AUTO PILOT circuit breaker is located and opened. When
the AVIONICS switch (BUS 2) is OFF, the autopilot and electric
trim systems will not operate. After opening the AUTO PILOT
circuit breaker, set the AVIONICS switch (BUS 2) to the ON
position to return power to the other equipment on AVIONICS
BUS 2.
4. It is important that all portions of the autopilot and electric trim
system are tested prior to each flight in accordance with the
Normal Procedures section of this supplement in order to assure
their integrity and continued safe operation during flight.
(Continued Next Page)
172SPHAUS-S3-01
S3-16
For
Training
Purposes
Only
Summary of Contents for Cessna 172S NAV III Skyhawk SP
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