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Systems Questions > FLIGHT CONTROLS > Flashcards

FLIGHT CONTROLS Flashcards

1
Q

1 | What does ELAC stand for? [ FCOM-DSC-27-10-10 ]

A

º Elevator Aileron Computer

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2
Q

2 | How many ELACs are installed? [ FCOM-DSC-27-10-10 ]

A

º 2

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3
Q

3 | What are the functions of the ELAC? [ FCOM-DSC-27-10-20 ]

A

º Normal elevator and stabilizer control
º Normal aileron control
º Normal pitch and roll
º Alternate pitch
º Direct pitch and roll
º Abnormal attitude
º Aileron droop
º Acquisition of autopilot orders

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4
Q

4 | Under Normal Law, what does ELAC 1 control? [ QRH OPS.07A ]

A

º Primary – Aileron control (roll)
º Standby – Elevator / Trimmable Horizontal Stabilizer control (backs up ELAC 2)

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5
Q

5 | Under Normal Law, what does ELAC 2 control? [ QRH OPS.07A ]

A

º Primary – Elevator / Stabilizer (pitch)
º Standby – Aileron control (backs up ELAC 1)

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6
Q

6 | What does SEC stand for? [ FCOM-DSC-27-10-10 ]

A

º Spoiler Elevator Computer

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7
Q

7 | How many SECs are installed? [ FCOM-DSC-27-10-10 ]

A

º 3

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8
Q

8 | What functions are performed by the SECs? [ FCOM-DSC-27-10-20 ]

A

º Normal roll (by controlling the spoilers)
º Speed brakes and ground spoilers (SEC 1 & 3 only)
º Alternate pitch (SEC 1 & 2 only)
º Direct pitch (SEC 1 & 2)
º Direct roll
º Abnormal attitude

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9
Q

9 | Under Normal Law, what do the 3 SECs control? [ QRH OPS.07A ]

A

º Primary – Spoiler control (roll)
º Standby – Elevator / Stabilizer control (SEC 1 & 2 back up the ELACs)

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10
Q

10 |What is the sole purpose of SEC 3 in Normal Law? [ FCOM-DSC-27-10-20 ]

A

º Spoiler control (Spoilers 1 & 2 only)

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11
Q

11 |What is the definition of FAC? [ FCOM-DSC-27-10-10 ]

A

º Flight Augmentation Computer

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12
Q

12 |How many FACs are installed? [ FCOM-DSC-27-10-10 ]

A

º 2

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13
Q

13 |What are the functions of the FACs? [ FCOM-DSC-27-10-20 ]

A

º Normal roll (turn coordination and yaw damping)
º Rudder trim
º Rudder travel limit
º Alternate yaw

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14
Q

14 |Under Normal Law, what do the FACs provide (YAWL)? [ FCOM-DSC-22-40-10 ]

A

º Y – Yaw Control – Damping and turn coordination, rudder limiter, rudder trim
º A – Airspeed Protection Computation (Alpha Protection, high / low limits, maneuvering speed, PFD
speed scale)
º W – Windshear protection (Reactive and not Predictive)
º L – Low Energy Warning Protection (“SPEED, SPEED, SPEED”)

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15
Q

15 |Is full rudder deflection available during all flight regimes? [ FCOM-DSC-27-10-20 ]

A

º No. Rudder deflection is limited as a function of airspeed

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16
Q

16 |How are the flight control surfaces controlled and actuated? [ FCOM-DSC-27-10-10 ]

A

º All surfaces are controlled electrically and actuated hydraulically

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17
Q

17 |When is automatic pitch trim available? [ FCOM-DSC-27-20-10-20 ]

A

º In flight under Normal Law with bank angle less than 33° with or without autopilot engaged

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18
Q

18 |How is roll control normally achieved? [ FCOM-DSC-27-10-20 ]

A

º 1 aileron and 4 spoilers on each wing

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19
Q

19 |If both FACs fail, is maximum rudder deflection available? [ FCOM-DSC-27-10-20 ]

A

º Yes, after slat extension

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20
Q

20 |How is the THS normally operated in flight? [ FCOM-DSC-27-10-20 ]

A

º The flight control computers control trim functions automatically

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21
Q

21 |If NO hydraulic power is available can the THS be positioned? [ FCOM-DSC-27-10-20 ]

A

º No – the THS requires hydraulic power from the Green or Yellow systems

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22
Q

22 |If a complete flight control computer failure occurs can the THS be positioned? [ FCOM-DSC-27-10-20 ]

A

º Yes, mechanical trimming is possible by manually positioning the Pitch Trim Wheel

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23
Q

23 |Can you move the PITCH trim wheel if all systems are working normally? [ FCOM-DSC-27-10-20 ]

A

º Manual inputs have priority over computer inputs. The autopilot will disconnect

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24
Q

24 |What happens to the THS when the aircraft enters into Ground Mode? [ FCOM-DSC-27-20-10-20 ]

A

º The trim automatically resets to zero (inside the green band)

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25
Q

25 |What does the red arrow in the SIDE STICK PRIORITY light mean? [ FCOM-DSC-27-20-30 ]

A

º It illuminates in front of the pilot losing authority

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26
Q

26 |How would you regain control if you had just lost sidestick authority? [ FCOM-DSC-27-20-30 ]

A

º The last pilot to press the pushbutton on the sidestick will have authority. An aural “Priority Left” or “Priority Right” will sound

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27
Q

27 |What do flashing green CAPT and F/O SIDESTICK PRIORITY lights indicate? [ FCOM-DSC-27-20-30 ]

A

º Both sidesticks have been moved simultaneously and neither pilot has taken priority

28
Q

28 |What happens when both pilots make an input simultaneously on the sidesticks? [ FCOM-DSC-27-20-30 ]

A

º The inputs are algebraically summed up to the normal limits
º An aural “Dual Input” will sound
º Green CAPT and F/O lights will illuminate

29
Q

29 |With only Green hydraulic system pressure available, will both the flaps and slats operate?
[ FCOM-DSC-27-30-10 ]

A

º Yes, at a slower speed

30
Q

30 |What system prevents flap or slat asymmetry? [ FCOM-DSC-27-30-10 ]

A

º Wing Tip Brakes (WTB)

31
Q

31 |What causes the WTBs to activate (ROAM)? [ FCOM-DSC-27-30-10 ]

A

º Runaway (Move handle to 1, all go to 3)
º Overspeed (Flap jack screw breaks)
º Asymmetry (Both on one side move farther)
º Movement (Never touch handle, ALL just move)

32
Q

32 |If the WTB activates due to a flap asymmetry can the slats still operate? [ FCOM-DSC-27-30-10 ]

A

º Yes, only flap operation is inhibited

33
Q

33 |How may Slat/Flap Control Computers (SFCC) are installed? [ FCOM-DSC-27-30-10 ]

A

º 2

34
Q

34 |What would occur if one SFCC failed? [ FCOM-DSC-27-30-10 ]

A

º The slats and flaps would continue to operate, but at half speed

35
Q

35 |What flap/slat configurations correspond to position 1 on the FLAPS lever and how do they differ?
[ FCOM-DSC-27-30-20 ]

A

º CONF 1+F is used for takeoff and provides both slats (position 1) + flaps
º CONF 1 is used in-flight and is slats only

36
Q

36 |When will the Automatic Retraction System (ARS) operate? [ FCOM-DSC-27-30-10 ]

A

º During acceleration in CONF 1+F the FLAPS (not slats) will automatically retract to 0 at 210 knots

37
Q

37 |What is Alpha Lock? [ FCOM-DSC-27-30-10 ]

A

º This function inhibits retracting slats from 1 to 0 at a high angle of attack or low airspeed

38
Q

38 |When the FLAP legend appears in blue on the upper ECAM display what is indicated? [ FCOM-DSC-27-30-20 ]

A

º Flaps/slats in transit

39
Q

39 |What happens to the ailerons when the flaps are extended? [ FCOM-DSC-20-10-20 ]

A

º The ailerons droop 5°

40
Q

40 |Is there any landing configuration when speed brake extension is inhibited? [ FCOM-DSC-27-10-20 ]

A

º Flaps FULL

41
Q

41 |When do the Ground Spoilers automatically extend? [ FCOM-DSC-27-10-20 ]

A

º Partial – When reverse thrust is selected on at least one engine with the other at idle and one main landing gear strut is compressed
º Full – At touchdown of both main gears, or in case of RTO with airspeed above 72 knots, when BOTH thrust levers at IDLE (if ground spoilers armed) or when reverse thrust is selected on at least one engine with the other thrust lever at IDLE (if the ground spoilers are not armed)

42
Q

42 |At touchdown with reverse selected and only one landing gear strut compressed, will the ground spoilers extend? [ FCOM-DSC-27-10-20 ]

A

º Partially – Full extension is limited until both main gear struts are compressed

43
Q

43 |When will the ground spoilers automatically retract? [ FCOM-DSC-27-10-20 ]

A

º When at least one thrust lever is advanced above IDLE

44
Q

44 |In flight, what happens if a spoiler fault is detected or electrical power is lost? [ FCOM-DSC-27-10-20 ]

A

º The spoiler automatically retracts

45
Q

45 |When is speedbrake extension inhibited (SAFET)? [ FCOM-DSC-27-10-20 ]

A

º SEC 1 and 3 have failed
º AOA protection is active
º Flaps FULL
º Elevator (L or R) fault (only spoilers 3 and 4 are inhibited)
º Thrust levers above the MCT position

46
Q

46 |What is the difference between the A319 and A320 regarding speed brake usage with the AP on? [ FCOM-DSC-27-10-20 ]

A

º With the A319 you get full spoiler deflection and with the A320 you only get partial spoiler deflection

47
Q

47 |What happens if you turn the Rudder Trim with the autopilot engaged? [ FCOM-DSC-27-10-20 ]

A

º Nothing

48
Q

48 |Does the rudder RESET button work with the autopilot engaged? [ FCOM-DSC-27-10-20 ]

A

º No

49
Q

49 |How does the High Speed Protection operate? [ FCOM-DSC-27-20-10-20 ]

A

º If Vmo/Mmo plus a predetermined factor is exceeded, the system induces a pitch-up input to limit aircraft speed

50
Q

50 |Can the pilot override the auto pitch-up associated with High Speed Protection in Normal Law?
[ FCOM-DSC-27-20-10-20 ]

A

º No

51
Q

51 |What is Alpha Max? [ FCOM-DSC-27-20-10-20 ]

A

º The maximum angle of attack allowed in Normal Law, indicated by the top of the red strip on the airspeed
scale

52
Q

52 |How does High Angle of Attack Protection operate? [ FCOM-DSC-27-20-10-20 ]

A

º When the angle of attack exceeds Alpha Protection, pitch trim ceases and angle of attack is now
proportional to sidestick deflection, not to exceed Alpha Max even with full aft sidestick deflection

53
Q

53 |What protection do you have in Alternate Law? [ FCOM-DSC-27-20-20 ]

A

º Load Factor
º High speed stability (Nose up command) but can be overridden
º Low speed stability (Nose down command) but can be overridden

54
Q

54 |Can you override the high stability in Alternate Law? [ FCOM-DSC-27-20-20 ]

A

º Yes

55
Q

55 |What protections do you have in Direct Law? [ FCOM-DSC-27-20-20 ]

A

º None

56
Q

56 |If you are in Pitch Alternate Law, what law would Roll be? [ FCOM-DSC-27-20-20 ]

A

º Direct Law

57
Q

56 |If you are in Pitch Alternate Law, what law would Roll be? [ FCOM-DSC-27-20-20 ]

A

º Direct Law

58
Q

58 |How would you get into Abnormal Attitude Law? [ FCOM-DSC-27-20-20 ]

A

º By exceeding approximately double the Normal Law limits

59
Q

59 |What is the purpose of Abnormal Attitude Law? [ FCOM-DSC-27-20-20 ]

A

º Allows the aircraft to be recovered from an unusual attitude

60
Q

60 |After recovery from an unusual attitude, what law will you be in? [ FCOM-DSC-27-20-20 ]

A

º When aircraft returns within normal flight envelope, the abnormal attitude law disengages and aircraft remains in alternate law with reduced protection for the remainder of the flight

61
Q

61 |What PFD indications indicate Normal Law? [ FCOM-DSC-27-20-20 ]

A

º Green = for pitch, bank, and overspeed limits
º Amber/black (alpha protection) airspeed tape

62
Q

62 |What is indicated if the PFD pitch and bank limits are amber X’s? [ FCOM-DSC-27-20-20 ]

A

º You are not in Normal Law

63
Q

63 |What would cause you to revert to another law? [ FCOM-DSC-27-20-20 ]

A

º Multiple failures of redundant systems

64
Q

64 |What law are you in when you perform the flight control check on the ground? [ FCOM-DSC-27-20-10-20 ]

A

º Normal Law, Ground Mode

65
Q

65 |Can the aircraft be flown with a loss of all flight control computers? [ FCOM-DSC-27-20-20 ]

A

º Yes, in Mechanical Backup

66
Q

66 |How is the airplane controlled in Mechanical Backup? [ FCOM-DSC-27-20-20 ]

A

º Pitch – Trim wheel (horizontal stabilizer)
º Yaw – Rudder pedals (rudder)
º Speed – Thrust levers

Systems Questions (19 decks)

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