Cessna 182S Pilot Operating Handbook page 410

SECTION 9 - SUPPLEMENTS
SUPPLEMENT 11 - FAA APPROVED
Effects of instrument losses upon autopi lot operation:
CESSNA
MODEL 182S
1. Loss of the artifi cial horizon -- no effect on the autopi lot.
2. Loss of the turn coordinator -- autopilot inoperative.
3. Loss of the DG (Directional Gyro)-- The directional gyro does
not provide any system valid fl ag . If the DG fails to function
properly the autopilot heading and navigation mode wi ll not
function correctly. Under these cond iti ons, the only useable
lateral mode is ROL.
SECTION 4
NORMAL PROCEDURES
A. PREFLIGHT (PERFORM PRIOR TO EAC H FLIGHT):
1.
AVION ICS MASTER -- ON.
2. POWER APPLICATION AND SELF TEST -- 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 ind icated by "PFT" with an increasing number for
the sequence steps. Successful completion of self test is
identified by all display segments being illuminated (Display
Test) , external "Pitch Tri m"
(NC
System Annunciator Panel)
being illuminated, and the disconnect tone sounding.
NOTE
Upon applying power to the autopilot, the red P warning on
the face of the autopilot may illuminate ind icating that the
pitch axis cannot be engaged. Th is condition should be
temporary, lasting approximately 30 seconds. The P will
extinguish and normal operation wi ll be available .