Ice & Rain Protection Flashcards
What subsystems does ice and rain protection include?
Wing & stab anti-ice, engine anti-ice, ADSP/TAT heating, windshield heating, windshield & rain protection
When may icing conditions exist?
Whenever OAT on the ground/takeoff or TAT in flight is 10*C or less and visible moisture in any form is present.
Where can performance data and limits for ops in icing conditions be found?
In the performance section and/or Optimized Performance Analyzing software (OPERA)
When may the ICE SPEED RESET position on the ICE PROTECTION MODE knob be selected?
Only if the crew is certain that there is no ice accretion on the plane.
What does the ICE SPEED RESET do?
Resets the stall protection (LSA bands) to non-icing condition settings and removes the STALL PROT ICE SPEED message
Can the APU bleed icon and associated flow line on the ice protection synoptic page be displayed?
Yes, Ground only
Can the APU bleed be used as a bleed source for ice protection?
No, except for ground tests
How does the Engine anti-ice system protect the engine inlets from ice formation?
By extracting hot air from the engines
How can the wing and horizontal stab ice prot systems test be initiated?
Hit the TEST button on the ice protection panel
How many ice detectors do we have and where are they?
2, one each side of nose section
How does the windshield heating system provide protection?
Electrical heating
When may the windshield heating system operate in power saving mode?
If the system is fed by a single engine.
Will windshield heat work off the batteries?
No
How are the ADSP/TAT probes heated?
Electrically
Will the Anti-Ice system monitor icing conditions and automatically activate in all flight phases?
Yes
Whenever the xbleed is closed and the right bleed source is not available, the anti ice system is in…?
Single bleed operation
Max altitude for single bleed anti-ice ops?
20,000ft
Whenever the xbleed is closed and the left bleed is unavailable, the anti-ice system is…?
Inop
List the 3 ICE PROTECTION MODE knob settings/temps for takeoff
ENG: visible moisture 5-10C
ALL: temp is lower than 5*C with visible moisture
AUTO: for all other conditions
If the MODE knob is set to ALL for takeoff, when will you see the white A-I WINGSTAB message go from ARMED to ON?
Wheel speed greater than 30kts
When the Ice Prot Mode knob is in AUTO and the detector recognizes the icing conditions, at what point will anti-ice be activated in flight?
When the plane is above 1,700ft agl or 2 min in the air, whichever is first.
When will the wing and stab anti-ice system automatically turn off after leaving icing conditions?
After 2 min
When must the ICE PROTECTION ALL tables be used for unfactored landing distances?
If the STALL PROT ICE SPEED message is displayed
