Textron Cessna C172S PIM, Pilot Operating Handbook

Page: 242 / 322

SECTION 7 CESSNA
AIRPLANE AND SYSTEM DESCRIPTION MODEL 172S NAV III
GFC 700 AFCS
U.S.
ENTRANCE DOORS AND CABIN WINDOWS
(Continued)
Exit from the airplane is accomplished by rotating the door handle from
the LOCK position, past the CLOSE position, aft to the OPEN position
and pushing the door open. To lock the airplane, lock the right cabin
door with the inside handle, close the left cabin door, and using the
ignition key, lock the door.
The left and right cabin doors are equipped with openable windows
which are held in the closed position by a detent equipped latch on the
lower edge of the window frame. To open the windows, rotate the latch
upward. Each window is equipped with a spring-loaded retaining arm
which will help rotate the window outward, and hold it there. If required,
either window may be opened at any speed up to 163 KIAS. The rear
side windows and rear windows are of the fixed type and cannot be
opened.
CONTROL LOCKS
A control lock is provided to lock the aileron and elevator control
surfaces to prevent damage to these systems by wind buffeting while
the airplane is parked. The lock consists of a shaped steel rod and flag.
The flag identifies the control lock and cautions about its removal
before starting the engine. To install the control lock, align the hole in
the top of the pilot’s control wheel shaft with the hole in the top of the
shaft collar on the instrument panel and insert the rod into the aligned
holes. Installation of the lock will secure the ailerons in a neutral
position and the elevators in a slightly trailing edge down position.
Proper installation of the lock will place the flag over the ignition switch.
In areas where high or gusty winds occur, a control surface lock should
be installed over the vertical stabilizer and rudder. The control lock and
any other type of locking device should be removed prior to starting the
engine.
172SPHBUS-00
7-28