4-10
Flight into Known Icing Conditions
Flight into Known Icing Conditions
4-10-01
WARNING
FLIGHT IN ICING CONDITIONS IS PROHIBITED IF THERE IS A KNOWN
FAILURE OF ANY OF THE ICE PROTECTION SYSTEMS.
WARNING
DURING FLIGHT IN ICING CONDITIONS OR FLIGHT WITH ANY VISIBLE ICE
ACCRETION ON THE AIRFRAME, THE FOLLOWING FLAP EXTENSION LIMITS
APPLY:
−
WITH OPERATIONAL AIRFRAME PNEUMATIC DEICE BOOTS = 15° FLAP.
−
AFTER FAILURE OF THE AIRFRAME PNEUMATIC DEICE BOOTS = 0°
FLAP.
Note
Flight in icing conditions is only permitted with full operational status of all aircraft
deicing systems. The deicing systems may be activated before takeoff.
Note
Icing conditions are defined in
Symbols, Abbreviations, and Terminology
.
Before entering icing conditions set the deicing switches as follows:
1.
PROP..........................................
ON
2.
INERT SEP.................................
OPEN
3.
BOOTS.......................................
ON and 3 MIN or 1 MIN as required
Note
A deice boots failure indication can occur at low power settings while in high
pressure altitudes. Refer to
Emergency Procedure for
system reset.
4.
LH and RH WHSLD switches.....
ON and LIGHT or HEAVY as required
Note
When DE ICING switch PROP is set to ON and INERT SEP is set to OPEN, the
stick shaker/pusher system is automatically reset to provide stall protection at
lower angles of attack. The ICE PROTECTION advisory caption PUSHER ICE
MODE comes on to inform the aircrew of this mode change. In this mode the
shaker and pusher are activated at higher airspeeds.
During icing conditions:
5.
Wing leading edge......................
MONITOR for continual shedding of ice
Continued on next page
Section 4 - Normal Procedures (EASA Approved)
Flight into Known Icing Conditions
Pilot's Operating Handbook
Report No: 02406
Issue date: Dec 18, 2020
Page 4-10-1
12-C-A15-30-0410-00A-131A-A
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GENERAL
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