Avionics: AFCS, Flight Instruments, Pitot Static System, Flight Envelope Protection Flashcards
What unit within the avionics system controls the following?
-FD 1:
-FD 2:
- Integrated Avionics Unit (GIA 1)
-Integrated Avionics Unit (GIA 2)
Can the active flight director be removed with the autopilot engaged?
No
What pilot actions disengage the autopilot?
-A/P Button
-Quick Disconnect Button
-Manual Trim Activation
-TO/GO button (with software version 3305.00 & later depressing the TO/GA Button does not disengage the autopilot).
What items are disabled when the Quick Disconnect Button is depressed and held?
-Autopilot
-Yaw Damper
-Trim
-Stick Pusher
What items remain disabled when the Quick Disconnect Button is depressed and released?
-Autopilot
-Yaw Damper
Describe the function of the Ventral Rudder under the following conditions:
Weight On Wheels below 60 KIAS:
Above 60 KIAS, YD Off:
YD Engaged:
-Centered
-YD mode
-Steamlining mode
What actions occur when the TO/GA button is pressed?
-Autopilot disengaged
-AFCS lateral and Vertical modes activated:
-ROL/TO Weight on Wheels
-ROL/GA Weight off Wheels
-Navigation leg sequencing past runway fix activated
-Navigation source changed from GPS/FMS
What are some conditions that induce AP/YD failure?
-Integrated Avionics Unit (GIA) 1 or 2 failure
-AHRS 1 or 2 failure/ miscompare
-Air Data System (ADS) 1 or 2 failure /miscompare
-Flight Controls Electronics (FCE) 2 failure
-Stall Warning
How are pitch trim commands issued when the autopilot is engaged?
The autopilot commands Flight Controls Electronics (FCE) 2 which in turn commands the pitch trim actuator.
How is climb or descent controlled in FLC mode?
Using the thrust levers
Does the AFCS allow climb or descent away from the selected altitude while in FLC mode?
NO
In which vertical modes will the AFCS capture a selected lower altitude?
-PIT
-VS
-VPATH/PATH
-ALTV
-FLC
In which vertical modes will the AFCS not capture a selected lower altitude?
-GS
-GP
Does GP capture when SUSP is annunciated on the HSI?
No
Does Gp capture if the CDI is not centered?
No
Describe the lateral function of ROL mode
Activated at bank angle:
-6 degrees or below: commands wings level
- Between 6 & 30 degrees: Commands present bank angle
-30 degrees or above: Commands 30 degree bank angle
Describe the vertical function of TO (Weight on Wheels)
Flaps 1: Constant 10.5 deg pitch attitude
Flaps 2: Constant 8 deg pitch attitude
Describe the vertical function of GA (Weight on Wheels)
-Flaps 0,1,2,3: Constant 8 deg pitch attitude
-Flaps FULL: Constant 6 deg pitch attitude
-
Is Low Bank mode available in both HDG and NAV (FMS/VOR/LOC)?
Yes
In heading mode, are turns commanded in the same direction as selected heading bug movement, even if the bug is turned more than 180 deg from the present heading?
Yes
What criteria must be met for Emergency Descent Mode (EDM) to be armed?
-Airplane Pressure Altitude >25,000’
-Autopilot Engaged
What criteria must be met for Emergency Descent Mode (EDM) to activate?
CAB ALTITUDE HI (CAS) is displayed
What actions are automatically accomplished by Emergency Descent Mode (EDM)?
-EDM annunciation
-Selected Altitude set to 15,000’
-Heading Bug set to 90 deg left of current heading
-Transponder code set to 7700
-Airspeed Reference set to 250 KIAS/Mmo
-FLC mode activated
-HDG mode activated
Must the CAB ALTITUDE HI (CAS) memos items still be followed in the event Emergency Descent Mode (EDM) activates?
Yes
How may Emergency Descent Mode (EDM) be deactivated?
Quick Disconnect Button only
Where are the ADC processors located within each air data system?
Within the respective IASP probe units for ADS 1 & 2, and within the EISI unit for the standby system.
What is the data source for the following?
-Air Data System (ADS) 1:
-Air Data System (ADS) 2:
Air Data System Standby:
-IASP 1 probe unit
-IASP 2 probe unit
-Pito-Static (standby) probe and integrated Electronic Standby Instrument (IESI
What is the normal air data source for the following display units?
-PFD 1/ MFD:
-PFD2:
-ADS 1
-ADS 2
What automatic air data source reversions occur for the following display units?
-PFD 1/ MFD:
-PFD 2:
-ADS 2 (ADS Standby if both ADS 1 and ADS 2 fail)
-ADS 1 (ADS Standby if both ADS 1 and ADS 2 fail)
What sensors are used by the AHRS units to compute attitude and heading information?
-Onside ADS (Air Data System)
-Onside Magnetometer Unit
-Both GPS sensors
What is the normal attitude/ heading reference for the following display units?
-PFD 1/ MFD:
-PFD 2:
-AHRS 1
-AHRS 2
What automatic attitude/ heading reference reversions occur for the following display units?
-PFD 1/ MFD:
-PFD 2:
-AHRS 2 (IESI attitude reference if both AHRS 1 and AHRS 2 fail
-AHRS 1 (IESI attitude reference if both AHRS1 and AHRS 2 fail)
Give the following data source information for the Integrated Electronic Standby Instrument (IESI)
-Power: Emergency Bus (Primary), DC BUS 1 (Secondary)
-Attitude: Internal Gyro System (no heading)
-Heading: AHRS 1
-Air Data: Pitot Static (Standby) probe and ADC processor internal to IESI unit
-Navigation: ILS1/ILS2
Are ADC, Heading, or Altitude reversions available for the Integrated Electronic Standby Instrument (IESI)?
No
Does the Integrated Electronic Standby Instrument (IESI) contain or source a dedicated AHRS unit?
No, the IESI attitude reference contains its own internal gyro system but does not contain heading data.
How may heading data be referenced for navigation in the event of a dual AHRS failure?
-The GPS page contains track info and while track differs from heading depending on winds, is the most reliable reference.
-Standby Compass
