Textron Cessna 172S Skyhawk SP, Information Manual

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SECTION 9 - SUPPLEMENTS
SUPPLEMENT 7 - FAA APPROVED
SECTION 4
NORMAL PROCEDURES
PREFLIGHT W.ERFORMPRIOR TO EACH FLIGHT»
CESSNA
MODEL.172S
1. GYROS -- Allow time for the turn coordinator to come up to
speed, as evidenced by the turn coordinator ,flag being pulled
from view.
. . 2. AVIONICS MASTER
-c
ON.
3. POWER APPLICATION AND SELFTEST
A self test is performed upon power application to the
computer.
This test is a sequence of internal' checks that
validate proper system operation prior to. allowing normal
system operation. The sequence is indicated by."PFT" (pre-
flight test) with an increasing number for the sequence steps.
Successful completion of self test is identified by all display
segments being illuminated (Display Test) and the disconnect
tone sounding.
4. AUTOPILOT-- ENGAGE by pressing AP button.
5. FLIGHT CONTROLS -- MOVE left and right to verify. that the
autopilot can be overpowered. ' .
NOTE
Normal use will not require the autopilot to be overpowered.
6. AlP DISC Switch -- PRESS. Verify that the autopilot
disconnects and tone sounds.
BEFORE TAKEOFF:
1. Autopilot -- OFF.
AUTOPILOT ENGAGEMENT:
'.1. AP Button -- PRESS. Note ROL annunciator on. II no other
modes are selected the autopilot will operate in the ROL
mode.
NOTE
Aircraft heading may change in
turbulence.
IS7-14
ROL mode due to
Revision 2