AFCS Flashcards
(44 cards)
When will the FGCS auto select half-bank and what is the angle?
FL250 and 17º bank angle
What does the TOGA button do for the FGCS?
On ground: Activates Takeoff Guidance Crossbars
In-flight: Activates GA Guidance within 2 miles of FAF and sequences the Missed Approach into the Active Flight Plan
What do the takeoff guidance crossbars do?
- Maintain extended runway centerline
- Maintain pitch guidance according to slap/flap setting and V2
When is the TOGA mode deactivated?
- Another vertical mode is pressed
- AP is activated
- TCS button is pressed
When will the FD automatically display?
- TOGA button is pressed
- AP is activated
- WDSH detection
What is the function of the TCS button?
- Overrides the AP
- When released, airplane maintains new altitude (if ALT was active vertical mode) but will return to previous lateral mode
What will disengage the autopilot?
Normal:
1. Either AP/TRIM DISC button is pushed
Non-Normal (4)
1. AP button on GP is pushed
2. Manual pitch trim is activated
3. Stick Shaker
4. WDSH Escape Guidance Activated
Abnormal (4)
1. FCs in Direct Mode
2. Aileron or Elevator Controls Disconnected
3. Overpowering the AP
4. Internal System Failures
Can the yaw damp be deactivated if the AP is on?
Yes, it is independent of the AP
When will the ATs engage on the ground or in flight?
On ground: AT TO (GP) is armed & TLA > 50º
In-flight: AT (GP) is armed & airplane > 400’ AGL
Will the ATs compensate for gusty winds?
Yes, up to 5 kts
What will disengage the ATs automatically and manually?
Normal Automatic:
1. After touchdown
2. Thrust lever beyond TOGA
3. Thrust Rev Usage during RTO
Non-Normal Automatic:
1. TLA difference > 8º
2. Internal system failures
Manual:
1. AT button on GP
2. AT disc button on TLs
What does LIM & OVRD mean on the FMA?
LIM = Selected Vertical Mode requires more or less engine thrust than is available
OVRD = The TLs are being manually moved (no AP disengagement)
When is CRZ automatically selected?
- When within 100 feet of selected altitude for 90 seconds
- Desired airspeed must be achieved or it will remain in CLB Mode until cruise airspeed is achieved
What does the PREV button do?
Allows the capture of ILS/BC while still using FMS as the basic NAV Source provided the AUTO TUNE function is enabled on the MCDU and the approach is loaded in the FMS
What does the red AP/TRIP DISC button do to the AFCS?
- Disconnects the AP
- If pressed and held, stops all trim actuation
Where are FMS 1 and 2 located?
MAU 2 (FMS 1) and MAU 3 (FMS 2)
What does SECT (sector scan) do to the WX Radar?
Goes from the normal sweep of 60º and 12 sweeps/min to 30º and 24 sweeps/min
Can the FD be turned off if your side is the active FMS?
No, only the non-coupled side can turn FD off
How many APs are on the EJET?
1 AP with dual channel config
How can you momentarily disengage the AP to maneuver the aircraft around as you wish?
TCS button (Touch Control Steering)
When does the Yaw Damper power up and shutdown (normal ops)?
When either Hyd 1 OR 3 is powered up and for shutdown is when both Hyd Sys 1 AND 3 are OFF
What color does the APPR 1 or APPR 2 turn if FMA 1 and FMA 2 have a disagreeement?
Yellow. Both Baro-Baro or RA-RA must be set to same value
What can activate ROLL Mode?
- No lateral mode active and vertical mode is selected
- Pressing TOGA on the ground and IAS < 100 kts
- Deselecting active Lateral Mode
- COURSE TO INTERCEPT on the FMS is activated
When does ROLL Mode deactivate?
Anytime a new Lateral Mode is selected
