141-160 Flashcards
How many outflow valves are installed on the aircraft?
One
What happens when you press the DUMP button?
Packs commanded off, recirculation fan off
Outflow valve opens to climb the cabin at 2000 fpm up to 12,400. Outflow valve then closes and cabin continues to climb due to natural leak
When does the windshield heat come on automatically on the ground?
With AC power for 2 minutes for BIT, then off until 2 independent AC sources
What is the maximum altitude for single pack operations?
31,000 feet.
What do the amber indications on the bleed push buttons indicate?
When a leak is detected, the button amber striped bar is illuminated.
Are we permitted to use high pressure external air and the APU simultaneously?
Simultaneous use of APU bleed and the HP cart is prohibited.
When will the passenger oxygen masks auto deploy?
Cabin altitude is between 14,000 ft to 14,750 ft
How many minutes of oxygen will the masks provide?
12 minutes
What conditions would require the ADS probe heater switch be pressed during the preflight?
FFOD temperature below - 18 degrees
OAT below zero and visible moisture
Contaminated probes
PFD erroneous indications
When does the probe heat come on automatically?
Engine start
When must a cold weather preflight inspection be performed?
OAT 5C or less, or
Wing fuel temp 0C or less, or
Atmospheric conditions conducive to icing, or
A/C exposed overnight to frost or precip, or
Residual ice from inbound flight, or
Cold soak ice is suspected in fuel tank area
Can you use the TAT displayed inside the flight deck to determine if icing conditions exist on the ground?
No, use OAT
List some of the critical surfaces on the ERJ
Wings, horizontal stabilizer, flight control surfaces
On the external services panel, what is the normal position of the external steering switch at the gate?
Disengaged
Have student identify smart probes. What makes them smart?
The Air Data Smart Probe (ADSP) are composed of:
• Multi function probes
• Air data computer
The ADSP/TAT will sense and transmit static pressure, total pressure, angle of attack and Total Air Temperature to the Air Data System.
The angle of attack is calculated based on an interface between the static pressure of the smart probes.
