Cessna 402C Pilot Operating Handbook page 80

SECTION 4
NORMAL PROCEDURES
(AMPLIFIED PROCEDURES)
«~402C
MODEL
The interior inspection will vary according to the planned flight and
the optional equipment installed. Prior to high-altitude flights, it is
important to check the condition and quantity of oxygen face masks and hose
assemblies. The oxygen supply system should be functionally checked to
lensure that it is in working order. The oxygen pressure gage should indi-
cate 300 to 1800 PS I (44.0 cubi c foot system) or 300 to 1850 PS I (114.9
cubic foot system) depending upon the anticipated requirements.
Sati sfactory operation of the pitot tube{ s) and stall warning trans-
mitter heating elements is detennined by observing a discharge on the
voltammeter when the pitot and stall heat switches are turned ON. The
effectiveness of these heating elements may be verified by cautiously
fee 1i ng the heat of ·these dev i ce s wh i 1e the switches are ON.
If the emergency landing gear extension T-handle was noticed to be
partly extended during the cockpit preflight inspection, the emergency
landing gear extension blowdown valve assembly should be reset at the
blowdown bottle in the left nose compartment. Check the valve assembly
position. If the red band is vi sible, the blowdown bottle must be serviced
in accordance with the airplane Service Manual before flight. If the red
band is not showing, push the cable towards the valve assembly, then check
the bottle pressure gage for normal pressure.
Fl ights at night and in cold weather involve a careful check of other
specific areas which will be discussed later in this section.
BEFORE STARTING ENGINES
1-
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
Preflight Inspection - COMPLETE (See Figure 4-1).
Cabin Door(s) - LATCHED and SECURE.
Crew Door (If Installed) - CLOSED and LOCKED.
Control Locks - REMOVE.
Seat, Seat Belts and Shoulder Harness - ADJUST and SECURE.
Brakes - SET.
Fuel Selectors - Left Engine - LEFT MAIN (Feel For Detent).
Right Engine - RIGHT MAIN (Feel For Detent).
Landing Gear Switch - DOWN.
Mixtures - FULL RICH.
Propellers - FULL FORWARD.
Throttles - OPEN ONE INCH.
All Switches - OFF.
Circuit Breakers - IN.
Emergency Power Alternator Field Switch - OFF.
Emergency Power Avionics Bus Switch - OFF.
Avionics Bus Switch - OFF.
Auxiliary Fuel Pump Switches - OFF.
Battery and Alternators - ON.
1 November 1979