SKYWEST ERJ 175 SYSTEMS QUESTIONS
Emergency Equipment - Answers-• PBE
• Halon Fire Ext
• Crash Axe
• Flashlight 2
• Oxygen Mask 3
• Escape Rope 2
• Life Vest 3
What are you looking for when battery 1 on and battery 2 Auto? - Answers-• Screen 2 &
3 on
• IESS powering up (90 sec alignment)
• Battery Voltage (Min 22.5V, 21.0 - 22.5 Recharge, < 21.0 write up)
What is the significance about 22.5V - Answers-10 minutes of battery power with 2 APU
start attempts
APU FADEC fire detection automatic - Answers-• On Ground: 10 seconds lag on
shutting it off.
• Anytime: 1 minute later the APU emergency stop button will light up.
GPU can be used for APU start - Answers-Replaces batt 2 but can't replace batt 1
If APU is accidentally selected off? - Answers-It can be turned back on before the 1 min
cool down is complete
After starting the left engine with the APU on, what generator will power AC Bus 2 (Right
Engine, Not Running)? - Answers-APU Generator
Cargo Fire Halon Extinguisher How many? Differences? - Answers-• 2 Halon
Extinguishers
• High-rate goes off 1 min
• Low-rate keeps going off in short spurts for 75 minutes.
Cargo fire extinguisher with EICAS message usage - Answers-• IN FLIGHT: button will
blow the high-rate and then 1 minute after the low-rate will discharge automatically.
• GROUND: button will blow the high-rate only. The button has to be pushed again for
the low-rate bottle.
Cargo fire extinguisher without EICAS message usage - Answers-• IN FLIGHT: button 2
times the low-rate is automatic.
• GROUND: button 2 times and only the high-rate goes off. Need to push the button 1
more time for low-rate bottle.
, Logic for AC powering up sources - Answers-• Onside
• Inside
• Outside
• CrossSide
If receiving an airplane already powered up, what must be done with regard to the
Safety and PowerUp Checklist? - Answers-It must be verified compliant and the fire
panel test must be accomplished.
Leaving the GPU button pressed in and after being disconnected from AC external
power will? - Answers-Not allow you to reconnect to AC power until the button is
repressed in.
All primary and secondary flight controls employ fly-by-wire technology except the -
Answers-Ailerons
What is the alternate mode for flight control operation if the normal mode fails? -
Answers-Direct Mode
EMERG ENTRY test if INHIB is pushed? - Answers-Within 30 sec door is locked for 500
sec
What are we looking for when performing the Fire Extinguisher Test? - Answers-• 6
Lights on overhead panel
• 5 EICAS messages
• 2 Master Warnings
• 2 ITT Fires
• 2 Aural Warnings
APU will auto shut down in flight: - Answers-• Under speed
• FADEC critical fault
• Overspeed
APU will auto shut down on the ground: - Answers-• Under speed
• FADEC critical fault
• Overspeed
• Sensor fail
• High oil temp
• EGT (high)
• Low oil pressure
• Fire
What are the 4 ACE (Actuator Control Electronics) - Answers-• P-ACE (primary) Rudder
and Elevators
• S-ACE(spoiler)
• HS-ACE (horizontal stabilator)
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