Ice & Rain Flashcards
- What are the two types of protection?
Electric and pneumatic.
- Where is ice buildup prevented?
Wing leading edges
Engine cowl inlets
Windshields
Probe sensors
Aft drain mast
- Describe ice detection system.
It’s comprised of two independent systems consisting of two ice detectors: one mounted below pilot window and one below copilot window.
- When does cyan Ice Detected CAS message extinguish?
Ice accumulation < 0.02” for three (3) minutes.
- With switches in auto, when does cowl and wing heat cease?
Cowls heat for three (3) minutes and wings heat for five (5) minutes after ice detected message extinguishes.
- Describe WAI system?
It consists of two independent control systems, pneumatically linked via crossover duct. One system provides WAI for left wing and one provides WAI for right wing.
- Where is WAI exhausted overboard?
Hot air flows through leading edge of each wing, passes through main wheel well, and through two screens aft of wheel well on bottom of aircraft.
- What happens when WAI is selected to On?
WAI operates regardless of altitude or ice detection.
- What do blue wing anti-ice lines indicate on ECS/PRESS synoptic page?
WAI temperature ≤ 100°F
- What do green wing anti-ice lines indicate on ECS/PRESS synoptic page?
Normal temperature (100 to 180°F)
- What do amber WAI lines indicate on ECS/PRESS synoptic page?
Abnormal condition: wing temperature < 100°F for four minutes after it’s commanded to On or
> 180°F.
- In regards to FMS programming, what must you do if you plan to takeoff with WAI and CAI selected to On?
Remember to select Cowl+Wing in TSC Perf Takeoff AC Cfg or V Speeds will remain amber after parking brake release.
- Where is CAI exhausted overboard?
Hot air travels through CAI supply duct to heat lip skin and exhausts overboard through vent located at bottom of engine.
- What happens when CAI is selected On?
CAI valve opens regardless of altitude or ice detection.
- What kind of rain removal system does the aircraft have?
There’s a surface coating on windshield that deflects water.
- What’s the caution associated with removal of ice from windshield?
Use of mechanical means to remove ice from windshield causes degradation and should be avoided.
- What happens when EVS Window Heat is selected?
The switch blooms cyan, EVS window graphic turns green and EVS window heats for five (5) minutes. Otherwise, operation is automatic if aircraft is airborne and ice is detected.
- What happens when Cabin Window Heat is selected on the ground?
The switch turns green and cabin windows are heated for ten (10) minutes: they’re heated automatically airborne.
- What happens when TAT Probe Heat is selected on ground?
The switch turns green and TAT probes are heated for one (1) minute; otherwise not heated on ground < 100 kts.
