Ice and Rain Protection Flashcards
(24 cards)
What sub-systems does ice and rain protection include?
Wing and stabilizer anti-ice system; engine
ice protection system; ADSP/TAT heating
system; windshield heating system and windshield rain protection system
When may icing conditions exist?
Whenever the OAT on the ground or for
takeoff, or TAT in flight, is 10°C or below and visible moisture in any form is present
Where can performance data/limits for operations in icing conditions be found?
In the performance section or Genisis
When may the ICE SPEED RESET position on the ICE PROTECTION MODE knob shall be selected?
Only if the crew is certain that there is no ice accretion on the airplane
What does the ICE SPEED RESET position on the ICE PROTECTION MODE do?
It resets the stall protection (LSA bands) to
non-icing condition settings and removes
the STALL PROT ICE SPEED CAS message
When is the APU icon and associated flow
line on the ICE PROTECTION synoptic page
displayed?
On the 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 air inlets from ice formation?
By extracting hot air from the engines. Piped into piccolo tube in engine forward bulkhead. TT2 probe electrically heated.
How does the Wing and Stabilizer Anti-Ice
System protect the wing and stabilizer leading edges from icing formation?
It uses hot air from the pneumatic system. Air flows through the AISOV to wing and stab leading edges.
How can the Wing and Horizontal Stabilizer Ice Protection Systems test be initiated?
By pressing the ice protection TEST button
on the ICE PROT panel. However, system conducts a BIT whenever aircraft is powered up and bleed source is available.
How many ice detectors are on the airplane and where are they located?
Two; left and right side of the nose section
How does the Windshield Heating System
(WHS) protect the windshield from ice and
fog formation?
It uses electrical power to heat the wind
shield. Operates as soon as aircraft is powered up.
When may the WHS operate in a power savings mode?
If the airplane system is fed by a single generator. Sheds down to Left Windshield/Left Panel.
Does WHS operate if the system is fed by
battery power?
No. Also, in an Electrical Emergency (RAT deployed, EMER BUSes powered) is does not operate.
How are the ADSP/TAT probes heated?
Electrically. Operates once engines running.
Will the Anti-Ice system monitor icing conditions and automatically activate in all flight phases?
Yes. Other than in AUTO it is inhibited below 1700 agl or prior to 2 minutes, whichever happens first.
When the XBLEED is closed and the right
bleed is the only source available, how is the anti-ice system effected?
The Wing and Stabilizer Anti-Ice System is
inoperative. If you get a Bleed Leak, FIRE or overpressure the XBSOV closes, so if that happens on the LEFT ENG you lose Wing and Stabilizer A/I.
What is the maximum operating altitude for anti-ice single bleed operation?
20,000 ft
List the three ICE PROTECTION MODE knob settings/temperatures for takeoff.
ENG if the temperature is between 5°C and
10°C with visible moisture; ALL if the temperature is lower than 5°C with visible moisture; and AUTO for all other conditions
If the MODE knob is in ALL for takeoff, when will the white A-I WINGSTAB ARMBED CAS message go to white A-I WINGSTAB ON?
When wheel speed is greater than 30 kts and TLA is above 59°
When the ICE PROT MODE knob is in the
AUTO position and the ice detector recognizes the icing condition, at what point will the ice protection system be activated in flight?
Whenever the airplane is above 1,700 ft AGL or 2 minutes in the air, whichever occurs first
When will the wing and stabilizer anti-ice
system automatically be turned off after the airplane leaves icing conditions?
After 2 minutes
In Single Bleed Ops, how do you know what your required N1 on the good engine is to keep system at temperature?
Amber tick mark on N1 gauge
If you get into a STALL PROT ANTICIPATE situation, what are the performance penalties?
Vref+ 30 and Required Landing Distance x 1.7.
