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PILOT'S OPERATING HANDBOOK
7.11 - AIR DATA SYSTEM AND INSTRUMENTS
Airplane air data system consists of :
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two separate static pressure systems supplying an electronic standby indicator and air data computers
(ADC).
A part of system 1 is backed up by an alternate system which operation is controlled by a switching valve
(normal / alternate) attached to instrument panel under R.H. control wheel. In case of obstruction or icing of
ports, this selector isolates airplane normal static system. When selector is on alternate position (pulled
rearwards), static pressure is picked from a port located in airplane rear fuselage.
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two separate dynamic pressure systems supplying the electronic standby indicator and air data computers.
STATIC PRESSURE SYSTEMS
Primary systems
Two dual static ports (one on either side of the fuselage tail part) supply a dual system routed towards the cockpit.
System 1 part, which is connected to the switching valve (normal / alternate), supplies the ∆P cabin and the
electronic standby indicator. The system remainder directly supplies one of the air data computers.
System 2 is directly connected to the second ADC.
Systems feature a drain valve located under the instrument panel on R.H. side.
Alternate static source
The alternate static port located in the rear fuselage supplies a system routed to the switching valve (normal /
alternate) in order to replace static system 1.
The alternate line incorporates a drain plug located under the instrument panel on R.H. side.
DYNAMIC PRESSURE SYSTEM
One heated pitot probe is installed under the L.H. wing. The second one is installed under the R.H. wing. The first
one supplies the electronic standby indicator and one ADC.
The second one supplies the other ADC.
Both lines incorporate a drain plug located in the root of L.H. and R.H. wings.
Pitot heating
Pitot heating is controlled by "PITOT L HTR" and "PITOT R & STALL HTR" switches, installed on "DE-ICE
SYSTEM" panel. Refer to Chapter 7.13 for further details.
Do not use heating during prolonged periods on ground to avoid pitot overheat.
Edition 0 -- October 31, 2013
Rev. 1
(Figure 7.11.1)
NOTE
SECTION 7
DESCRIPTION
Page 7.11.1
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