曝光台 注意防骗
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During cold weather operations, the flight crew must ensure that the airplane fuselage, wings and
tail surfaces are free from ice, snow or frost.
WARNING
Even small accumulations of ice on the wing leading
edge can change the stall speed, stall characteristics or
the warning margin provided by the stall protection
computer.
A. Cowl Anti-ice System
(1) Ground Operations
The engine cowl anti-ice system must be on when the OAT is 10C (50F) or below and
visible moisture in any form is present (such as fog with visibility of one mile or less, rain,
snow, sleet and ice crystals).
The engine cowl anti-ice system must also be on when the OAT is 10C (50F) or below
when operating on runways, ramps, or taxiways where surface snow, ice, standing water
or slush is present.
(2) Flight Operations
NOTE
Icing conditions exist in flight at a TAT of 10C (50F) or
below and visible moisture in any form is encountered
(such as clouds, rain, snow, sleet or ice crystals), except
when the SAT is –40C (–40F) or below.
The engine cowl anti-ice system must be on:
At or above 22,000 feet:
when ice is indicated by the ice detection system, or
when in icing conditions, if an ice detector has failed.
Below 22,000 feet:
when in icing conditions, or
when ice is indicated by the ice detection system.
15/05/95
CL-604 Airplane Flight Manual
PSP 604–1
DOT Approved AR
REV 53, Jun 04/04
LIMITATIONS
Operating Limitations
02–04–3
2. OPERATION IN ICING CONDITIONS (CONT’D)
B. Wing Anti-ice System
(1) Ground Operations
The wing anti-ice system must be on for take-off when the OAT is 5C (41F) or below
and visible moisture in any form is present (such as fog with visibility of one mile or less,
rain, snow, sleet and ice crystals).
The wing anti-ice system must also be on for take-off when the OAT is 5C (41F) or
below and the runway is contaminated with surface snow, slush or standing water.
When Type II, III or IV anti-icing fluids have been applied, the wing anti-ice system must
only be selected on, if required, just prior to thrust increase for take-off.
(2) Flight Operations
NOTE
Icing conditions exist in flight at a TAT of 10C (50F) or
below and visible moisture in any form is encountered
(such as clouds, rain, snow, sleet or ice crystals), except
when the SAT is –40C (–40F) or below.
The wing anti-ice system must be on:
At or above 22,000 feet:
when ice is indicated by the ice detection system, or
when in icing conditions, if an ice detector has failed.
Below 22,000 feet:
when in icing conditions, or
when ice is indicated by the ice detection system.
C. Super-Cooled Large Droplet Icing
Continued operation in areas where super-cooled large droplet (SLD) icing conditions exist
is prohibited.
SLD icing conditions are indicated by ice accretion on the flight compartment side windows.
The wing anti-icing system must be ON in SLD icing conditions.
The cowl anti-icing system must be ON in SLD icing conditions.
Leave icing conditions when side window icing occurs.
CL-604 Airplane Flight Manual
PSP 604–1
DOT Approved
REV 56, Jan 14/05
LIMITATIONS
Operating Limitations
02−04−4
3. COLD WEATHER OPERATIONS
Take-off is prohibited with frost, ice, snow or slush adhering to any critical surface (wings,
horizontal stabilizer, vertical stabilizer, control surfaces, engine inlets and upper surface of the
fuselage).
WARNING
Even small amounts of frost, ice, snow or slush on the wing
leading edges and forward upper wing surface may
adversely change the stall speeds, stall characteristics and
the protection provided by the stall protection system, which
may result in loss of control on take-off.
NOTE
1. Comprehensive procedures for operating in cold
weather are provided in the Operating Manual Volume 1,
Chapter 6, SUPPLEMENTARY PROCEDURES AND
TECHNIQUES, Cold Weather Operation.
2. Take-off is permitted with frost adhering to the underside
of the wing that is caused by cold soaked fuel, in
accordance with the instructions provided in the
Operating Manual Volume 1, Chapter 6,
SUPPLEMENTARY PROCEDURES AND
TECHNIQUES, Cold Weather Operations, Pre-Flight
Preparation, External Safety Inspection.
In addition to a visual check, a tactile check of the wing leading edge, wing forward upper surface
and wing rear upper surface is required during the External Walkaround inspection to determine
that the wing is free from frost, ice, snow or slush when the outside air temperature (OAT)
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