SUPPLEMENTARY
PROCEDURES
ENVIRONMENTAL
AIRPLANE
OPERATIONS
MANUAL
1-02-79
Page
19
Code
01
TEMPORARY REVISION 41.1
Copyright © by Embraer. Refer to cover page for details.
GENERAL REMARKS WHEN FLYING IN ICING CONDITIONS
− Continuously monitor engine parameters, airplane pitch attitude
and airspeed.
− Closely monitor the SAT indication and presence of moisture. If
environmental ice conditions exist, even intermittent, check the
windshield, windshield wiper (if installed), and wing surface for ice
accumulation. To visualize ice formation, if necessary, use a
flashlight on the windshield and the wing inspection light on the
wing. If any ice formation is detected or suspected, select the anti-
ice protection system override knob to ALL. When flying in
detected or suspected ice conditions, use ice speeds as reference.
− Be careful for any mistrimmed condition that may be masked by
the autopilot - keep the airplane trimmed at all times. Consider
turning the autopilot off if you suspect you are flying in severe icing
conditions.
− Monitor anti-ice systems for proper operation. Apply the
associated AFM abnormal procedure in case of system failure. If
the failure persists, exit and avoid icing conditions. Make the air
traffic controller know you are requesting a change due to icing
conditions and keep him informed about it.
− Strictly follow AFM Operation In Icing Condition normal
procedures.
− Avoid landing in an airport where icing conditions exist or are
anticipated if anti-ice system, brakes, thrust reverse, ground
spoilers, nosewheel steering or flight controls have failed.
− Do not hesitate to leave icing conditions when icing cannot be
handled, even with anti-ice system operating properly.
NOTE: Engine and Wing Ice Protection Systems operation is
automatic and based on the primary ice detection system.
However, the crew remains responsible for monitoring icing
conditions and for manual activation of the ice protection
system if icing conditions are present and the ice detection
system is not activating the ice protection system.
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