Ice and Rain Flashcards
___ stage and ___ stage supply bleed air to the ____ and the ____.
6th stage and 10th stage supply to the wings leading edge and the engine cowls.
The T2 probe is heated through ___ elements; the heating cycle is automatically controlled by the ___.
electric
FADEC
The AILC uses ___ along the ducts, ____ in the wings and ____ in the cowls to detect duct failures and overheats.
Dual loops
Temperature sensors
pressure transducers
Should a duct failure occur, the ___ will work to isolate the leak automatically in one of the five bleed air zones.
AILC (Anti-ice Leak Controller)
Should an engine failure occur, bleed air can be routed from the functioning engine to the affected leading edge through the ___ valve.
WING A/I CROSS BLEED
When must the wing anti-ice be selected on during ground operations?
On the ground for takeoff when: OAT is 5 degrees C or lower with visible moisture. 5 degrees C or lower and RWY is contaminated.
What is different when Type II - IV fluids are applied to the wing when turning on wing anti-ice?
Turn it on just prior to thrust increase for takeoff.
When must wing anti-ice be turned on in flight?
When icing conditions exist (10 degrees C + visible moisture unless SAT colder than -40) and less than 230 knots.
When ICE annunciation is on from the ice detection system.
When must cowl anti-ice be selected on during ground operations?
OAT is 10 degrees C or lower and visible moisture is present.
10 Degrees or less with contamination on taxiways/RWY.
When must the cowl anti-ice be selected on for flight operations?
Icing conditions exist (10 degrees C + visible moisture unless SAT colder than -40)
ICE annunciated by ice detection system?
Define icing flight conditions:
10 degrees C or below and visible moisture in any form is encountered EXCEPT when SAT is -40 or below.
How many ICE detectors are on the airplane and how do they report ice?
2: one on left and right fwd fuselage.
Microprocessors detect vibration frequency change and sent to DCU.
What would cause you to get an “ICE” caution message and “ICE” switchlight to illuminate?
Ice is detected and WING/COWL anti ice selected off.
After “ICE” caution message comes up and wing/cowl anti ice are turned on, how would you know if ice is continued to be detected by the system?
Green ICE advisory message.
Describe the heating cycle of the ice detectors.
When ice is detected the probes heat to clear ice and turn off when probes don’t detect anymore ice. They turn on and off as needed.
