Environmental Flashcards
Where should the air control knobs be positioned prior to starting the heater or blower?
In (closed)
When should pitot heat be turned on in flight?
Hover/landing in water, flights in rain
Obvious moisture in air
Will the heater blower continue to run after the heater had stopped?
Yes, until heater combustion chamber temperature is below 49 deg C
How long should you wait after stopping the heater before you turn the generator(s) off?
2 min
What should you do with the heater function switch if the HEATER HOT caution light is on?
CAUTION: The heater function switch shall remain ON while performing these
Wait 2 min for cool down
HTR START Sw- Press
Monitor Heater Hot Caution Light
What two items is the crewmember required to check during the PITOT Heat check?
Pitot tube and yaw ports
Windshield anti-ice provides what two features?
Anti-ice
Anti-fog
The HEATER HOT caution light will stay active until temperature is below______ and you
press what______?
177 deg C and you press the HTR START switch
What is the purpose of the cabin heater thermostat?
Maintaining Cabin Temperature
At what temperature does the thermal switch that protects the avionics in the heater compartment become activate?
29* C
What component raises fuel pressure for the heater?
Pump in fuel control unit
What should the windshield wipers be set to during an IFR approach?
Fast
To prevent windshield damage, do not operate the windshield wipers when windshields are in what condition?
Dry
If the heater shuts down during icing, do not attempt restart until?
until ice is removed from the heater intake, heater exhaust, and fuel drain.
Pull out the cockpit air knobs __________ to preclude dirt and debris from being blasted into the air and the crew’s eyes?
Slowly
Name the three items below.
- Blower assembly
- Heater fuel control unit
- Heater ignition unit
Name the item below
heater cabin thermostat
