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Endeavor 9E CRJ 900 systems
review/oral/LOE Questions with Detailed
Verified Answers
What will be lost with ADC failure?
⼀Answer:⼀ Airspeed info, Vertical Speed info, Altitude Info, and
Temperature info.
What will you see on the FO's PFD once you have selected ADC1?
⼀Answer:⼀ An amber ADC1 message in displayed on both PFD's.
What will be lost following an IRS/AHRS failure?
⼀Answer:⼀ Attitude / Heading
What happens when we turn the "Air Data" knob from Norm to 1?
⼀Answer:⼀ both PFD's run on ADC 1 ("Norm" left side ADC1/ right
side ADC2)
At what altitude will the Radio Altitude no longer be
displayed?
⼀Answer:⼀ 2500 ft. (1225 ft for tape)
Name four aircraft systems that receive inputs from the
Pitot/Static system?
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⼀Answer:⼀ ADC,
ISI (integrated standby instrument),
CPCP (cabin pressure control panel),
Stall Protection System
How long will you be able to continue to use your standby
instrument following a complete loss of all AC and DC
power?
⼀Answer:⼀ You won't, it must have power. (30 min with batt only)
Which approaches can be flown using the ISIS?
⼀Answer:⼀ ILS only using Nav 1. (Company limitation)
Name all of the ways the COMM and NAV radios may be
tuned:
⼀Answer:⼀ RTU, FMS Radio Page, BTU (backup tuning unit)
What does the EMER button mean on the RTU panel?
⼀Answer:⼀ Bypasses the ACP/Audio Control Panel (volume control),
connects directly to radio (CAPT com 1/FO com 2)
How would you cross-side tune the RTUs?
⼀Answer:⼀ 1/2 Button.
Which switches should be selected when making a PA
announcement?
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⼀Answer:⼀ Transmit selector to PA, press PA button and select
R/T (radio transmit)
When does the Cockpit Voice Recorder begin recording?
⼀Answer:⼀ When DC power is applied to the plane.
When does the Flight Data Recorder begin recording?
⼀Answer:⼀ When the Beacon is turned on, or the Strobe is turned
on, or Weight Off Wheels.
Name the three panels that control what is shown on the
PFD/MFD. What do they do?
⼀Answer:⼀ "DAD"
DCP: Display Control Panel. Range, Nav Source, etc
ACP: Air-data Control Panel. MDA/DH, REF, Baro, etc
DRP: Display Reversionary Panel. Changes MFD to PFD/EICAS.
What can be silenced with the Master Warning pushbutton?
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⼀Answer:⼀ Pushing the MASTER WARNING silences the aural
warnings except:
• Stall warbler
• GPWS/TCAS (voices and aural)
• Overspeed clacker
• Flap clacker
• Stabilizer trim clacker
• AP Disconnect cavalry charge
• Configuration warnings
• Gear Horn
If you see red ALT, IAS, VS what kind of failure do you probably
have?
⼀Answer:⼀ ADC air data computer
What checklist would you run if had red ATT HDG and FD flags
with a missing HSI on the PFD?
⼀Answer:⼀ IRS/AHRS fail
What is required to activate the autopilot?
Endeavor 9E CRJ 900 systems
review/oral/LOE Questions with Detailed
Verified Answers
What will be lost with ADC failure?
⼀Answer:⼀ Airspeed info, Vertical Speed info, Altitude Info, and
Temperature info.
What will you see on the FO's PFD once you have selected ADC1?
⼀Answer:⼀ An amber ADC1 message in displayed on both PFD's.
What will be lost following an IRS/AHRS failure?
⼀Answer:⼀ Attitude / Heading
What happens when we turn the "Air Data" knob from Norm to 1?
⼀Answer:⼀ both PFD's run on ADC 1 ("Norm" left side ADC1/ right
side ADC2)
At what altitude will the Radio Altitude no longer be
displayed?
⼀Answer:⼀ 2500 ft. (1225 ft for tape)
Name four aircraft systems that receive inputs from the
Pitot/Static system?
, Page | 2
⼀Answer:⼀ ADC,
ISI (integrated standby instrument),
CPCP (cabin pressure control panel),
Stall Protection System
How long will you be able to continue to use your standby
instrument following a complete loss of all AC and DC
power?
⼀Answer:⼀ You won't, it must have power. (30 min with batt only)
Which approaches can be flown using the ISIS?
⼀Answer:⼀ ILS only using Nav 1. (Company limitation)
Name all of the ways the COMM and NAV radios may be
tuned:
⼀Answer:⼀ RTU, FMS Radio Page, BTU (backup tuning unit)
What does the EMER button mean on the RTU panel?
⼀Answer:⼀ Bypasses the ACP/Audio Control Panel (volume control),
connects directly to radio (CAPT com 1/FO com 2)
How would you cross-side tune the RTUs?
⼀Answer:⼀ 1/2 Button.
Which switches should be selected when making a PA
announcement?
, Page | 3
⼀Answer:⼀ Transmit selector to PA, press PA button and select
R/T (radio transmit)
When does the Cockpit Voice Recorder begin recording?
⼀Answer:⼀ When DC power is applied to the plane.
When does the Flight Data Recorder begin recording?
⼀Answer:⼀ When the Beacon is turned on, or the Strobe is turned
on, or Weight Off Wheels.
Name the three panels that control what is shown on the
PFD/MFD. What do they do?
⼀Answer:⼀ "DAD"
DCP: Display Control Panel. Range, Nav Source, etc
ACP: Air-data Control Panel. MDA/DH, REF, Baro, etc
DRP: Display Reversionary Panel. Changes MFD to PFD/EICAS.
What can be silenced with the Master Warning pushbutton?
, Page | 4
⼀Answer:⼀ Pushing the MASTER WARNING silences the aural
warnings except:
• Stall warbler
• GPWS/TCAS (voices and aural)
• Overspeed clacker
• Flap clacker
• Stabilizer trim clacker
• AP Disconnect cavalry charge
• Configuration warnings
• Gear Horn
If you see red ALT, IAS, VS what kind of failure do you probably
have?
⼀Answer:⼀ ADC air data computer
What checklist would you run if had red ATT HDG and FD flags
with a missing HSI on the PFD?
⼀Answer:⼀ IRS/AHRS fail
What is required to activate the autopilot?
