Anti-Ice / Rain Flashcards
What part of the engine does the Engine Anti-Ice System heat?
The engine cowl.
When should engine anti-ice be used on the ground (PHB Limitations)?
When icing conditions exist (OAT is 10*C or below and visible moisture is present.
(Visible moisture is defined as clouds, or fog with visibility less than 1 mile, rain, snow, ground clutter etc..)
When should engine anti-ice be used in flight (PHB Limitations)?
When icing conditions exist (OAT is 10C or below and visible moisture is present.) or are anticipated, except when the temperature is below -40C SAT.
(Visible moisture is defined as clouds, or fog with visibility less than 1 mile, rain, snow, ground clutter etc..)
What part of the wing does the Wing Anti-Ice System heat?
Bleed air is provided to three midwing leading edge slats.
When can Wing Anti-Ice be operated?
In flight only.
What does the meaning of an illuminated Wing Anti-Ice “VALVE” or Engine Anti-Ice “VALVE” light indicate?
The valve is not in the commanded position.
How are all flight deck windows heated?
All flight deck windows are electrically heated. The forward windows have conditioned air ducted to their tops to provide supplemental anti-fogging.
What type of window heat protection do the forward windows have?
The forward windows have anti-icing and anti-fogging.
What type of window heat protection do the side windows have?
The side windows have anti-fogging protection only.
What happens to the Window Heat System when a Window Heat “INOP” light illluminates?
The window is not being heated.
When are the probes heated?
The system is automatic but power is applied to the electrically heated probes any time an engine is running.
What is the meaning of an illuminated Probe Heat Light?
An individual probe heat light illuminates and the associated EICAS advisory message displays when a probe is not being heated. If two or more probe lights illuminate, the EICAS advisory message “PROBE HEAT” displays.
