Cessna 402C Pilot Operating Handbook page 39

2. The Normal Procedures Section of the AFM by incorporating the
following:
THE FOLLOWING WEATHER CONDITIONS MAY BE
CONDUCIVE TO SEVERE IN-FLIGHT ICING:
•
Visible rain at temperatures below 0 degrees Celsius ambient air
temperature.
• Droplets that splash or splatter on impact at temperatures below 0
degrees Celsius ambient air temperature.
PROCEDURES FOR EXITING A SEVERE ICING
ENVIRONMENT: (These procedures are applicable to allflight phases
from take-off to landing.)
Monitor the ambient air temperature.
While severe icing may form at temperatures as cold as -18 degrees
Celsius, increased vigilance is warranted at temperatures around freezing
when visible moisture is present.
•
•
•
•
--
•
•
•
Immediately request priority handling from Air Traffic Control to
facilitate a route or an altitude change to exit the severe icing
conditions in order to avoid extended exposure to flight conditions
more severe than those for which the aircraft has been certificated.
Avoid abrupt and excessive manoeuvring that may exacerbate
control difficulties.
Do not engage the autopilot.
If the autopilot had previously been engaged, hold the control wheel
firmly and disengage the autopilot.
If an unusual roll response or un-commanded roll control movement
is observed, reduce the angle-of-attack.
Do not extend flaps when holding in icing conditions. Operation
with flaps extended can result in a reduced wing angle-of-attack,
with the possibility of ice forming on the upper surface further aft on
the wing than normal, possibly aft of the protected area.
If the flaps are extended, do not retract them until the airframe is
clear of ice.
• RepOli these weather conditions to Air Traffic Control.
If the visual cues which are specified in the Limitations Section of the
AFM for identifying severe icing conditions are observed, accomplish the
following:
page 2-20