Cessna 402C Pilot Operating Handbook page 92

SECTION 4
NORMAL PROCEDURES
(AMPL.IFIED PROCEDURES)
If synchronized operation is lost during large power changes, manually
re-synchronize the propeller controls as closely as possible and synchro-
nized operation should reoccur. Securely tighten the quadrant friction
lock, then adjust the phasing knob as desired.
During the descent, the mixtures should be gradually enrichened to
maintain smooth engine operation. This procedure will provide sufficient
fuel flow for the descent; however, if a higher power setting (i.e. balked
landing) is required before landing, the mixtures must be readjusted to
obtain the correct fuel flow.
To prevent confusion in interpreting which lO,OOO-foot segment of alti-
tUde is being displayed on the altimeter, a striped warning segment is
exposed on the face of the altimeter at all altitudes below 10,000 feet. / .•
If fuel has been consumed at uneven rates between the two main tanks
because of prolonged engine inoperative flight, it is desirable to balance
the fuel load by operating both engines from the fullest tank. However, if
there is sufficient fuel in both tanks, even though they may have unequal
quantities, it is important to switch the left and right fuel selectors to
the left and right main tanks, respectively; feel for detent; and check the
auxiliary fuel pumps ON for the landing. This will provide an adequate /"""'",
fuel flow to each engine if a balked landing is necessary.
BEFORE LANDING
I. Seat Belts and Shoulder Harness - SECURE.
2. Propeller Synchrophaser - OFF (Optional System).
3. Alternate'Air Controls - CHECK IN.
4. Wing Flaps - DOWN 150 below 180 KIAS.
5. ,anding Gear - DOWN below 180 KIAS.
6. Landing Gear Position Indicator Lights - Check down lights ON;
Unlocked Light - OFF.
7. Mixtures - FULL RICH or lean as required for smooth operation.
8. Propellers - FULL FORWARD.
g. Wing Flaps - DOWN 45 0 below 149 KIAS.
10. Minimum Multi-Engine Approach Speed - 95 KIAS at 6850 pounds.
Refer to Section 5 for speeds
at reduced weights.
Landing gear extension before landing is easily detected by a slight
change in airplane trim and a slight
"bump
II
as the gear locks down. Illu-
mination of the gear-down indicator lights (green) is further proof that
the gear is down and locked. The gear unlocked indicator light (red) will
illuminate when the gear uplocks are released and will remain illuminated
while the gear is in transit. The unlocked light will extinguish when the
gear has locked down. If it is reasonably certain that the gear is down
and one of the gear-down indicator lights is still not illuminated, the
malfunction could be caused by a burned out light bulb. This can be
checked by pushing the press-to-test button. If the bulb is burned out, it
can be replaced with the bulb from any post light, Or the landing gear
unlocked indicator light.
A simple last-minute recheck on final approach should confirm that all
applicable switches are on, the gear-down indicator lights (green) are
illuminated, the gear unlocked indicator light (red) is extinguished, the
propeller controls are full forward, and the mixtures are set for smooth
operation.
1
Nnv~mber
1979