Automatic Flight Flashcards

1
Q

Q.1.1. What does TO/GA AFDS command when engaged for TAKEOFF?

A

The AFDS commands pitch attitude in the following order:
15° nose up after lift-off until a sufficient climb rate is acquired.
Then, pitch is commanded to maintain MCP speed plus 20 kts.

(opens in a new tab)Reference: FRM B737NG/MAX 4.2.2(opens in a new tab)

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2
Q

Q.1.2. What does the AFDS pitch command if an engine failure occurs at or after lift-off?

A

At lift-off:
If an engine failure occurs on the ground:
the pitch command target speed at lift-off is V2 or
airspeed at lift-off,
whichever is greater.

After lift-off:
If an engine failure occurs,
the pitch command target speed is:
V2,if airspeed is below V2.
Existing speed if airspeed is between V2 and V2 + 20.
V2 + 20, if airspeed is above V2 + 20.

Reference: FRM B737 NG/MAX 4.2.4.1(opens in a new tab)

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3
Q

Q.1.3. When below 2,000 ft RA, what N1 will the A/T command with one push of either TO/GA switch?

A

Thrust advances toward the Reduced Thrust Go-Around N1 to produce 1000 to 2000 fpm rate of climb.

Reference: B737NG/MAX 4.2.4.3.7(opens in a new tab)

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4
Q

Q.1.4. What N1 will the A/T command with a 2nd push of the TO/GA switch?

A

The A/T advances to the full go-around N1 limit.

Reference: FRM B737NG/MAX 4.2.4.3.7(opens in a new tab)

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5
Q

Q.1.5. During a go-around, what AIRSPEED will be commanded after pushing either TO/GA switch?

A

The COMMAND AIRSPEED CURSOR automatically moves to a
target airspeed for the existing FLAP POSITION based on MTOW calculations.
Reference: FRM B737NG 4.2.4.3.7/MAX 4.2.4.1(opens in a new tab)

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6
Q

Q.1.6. During a GO-AROUND,what changes in the MCP pitch mode if you engage the autopilot?

A

TO/GA terminates, and LVL CHG engages.

Reference: FRM B737 4.2.4.3.7/MAX 4.2.4.1(opens in a new tab)

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7
Q

Q.1.7. During Approach, how do you exit the APP (VOR/LOC & G/S captured) mode?

A
  • Pushing a TO/GA switch
  • Disengaging A/P and Turning off both F/D switches (without having one engaged)
  • Retuning a VHF NAV receiver

Reference: FRM B737NG/MAX 4.2.4.3(opens in a new tab)

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8
Q

Q.1.8. What does white A/T LIM indication mean on Thrust Mode Display

A

The FMC is not providing the A/T system with N1 limit values.
The A/T is using a degraded N1 thrust limit from the related EEC.

Reference: FRM B737NG/MAX 4.1.8

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9
Q

Q.1.9. What does a flashing “8” or “A” mean on IAS/MACH window?

A

The OVERSPEED “8”or UNDERSPEED “A” limiting symbol appears
when the Commanded Speed cannot be reached.

Reference: FRM B737NG/MAX 4.1.2(opens in a new tab)

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10
Q

Q.1.10. In which MCP pitch mode are
SPD INTV and ALT INTV available?

A

VNAV

Reference: FRM B737NG/MAX 4.1.3(opens in a new tab)

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11
Q

Q.1.11. In order to arm VNAV on the ground , what criteria must be met?

A

Both FD Switches have been switched ON.
A valid Flight Plan has been entered.
Performance Data has been entered and executed.

Reference: FRM B737NG 11.9.2.1, FRM B737MAX 4.1.3

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12
Q

Q.1.12. On the ground with the VNAV armed prior to takeoff , at what altitude does the VNAV become active?

A

400 ft AGL

Reference: FRM 4.1.3(opens in a new tab)

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13
Q

Q.1.13. During a VNAV PTH descent, what speed will the FMC attempt to maintain?

A

A path descent uses the TARGET SPEED for planning purposes only.
There is no attempt to maintain the TARGET SPEED during the IDLE portion of the descent.

Reference: FRM 11.4.6.6.4(opens in a new tab)

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14
Q

Q.1.14. What is the importance of an AMBER FMC Alert light on Autopilot/Autothrottle Indicators Panel?

A

The light indicates an MCDU or Fuel alerting message is displayed in the MCDUs scratchpad.
In the MAX, Fuel ALERTS will also be indicated on the Engine Display.

Reference: FRM B737NG/MAX 11.1.1.7(opens in a new tab)

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15
Q

Q.1.15. What is the GREEN RECTANGLE around the PITCH, ROLL & A/P Status in the FMA?

A

Mode Change Highlight Symbol (GREEN BOX)
means the mode was engaged within the last 10 seconds.

Reference: FRM B737NG/MAX 4.1.9(opens in a new tab)

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16
Q

Q.1.16. What is the best indication to ensure an Autopilot is engaged after selection?

A

FMA indicating a changeover from FD to CMD.

Reference: FRM B737NG/MAX 4.1.9(opens in a new tab)

17
Q

Q.1.17. When in Autothrottle (A/T) Engaged Mode, what does ”ARM” indicate on the FMA?

A

No autothrottle mode engaged.
Thrust lever autothrottle servos are inhibited; the Pilot can set the thrust levers manually.
Minimum speed protection provided.

Reference: FRM B737NG/MAX 4.2.2.7.1(opens in a new tab)

18
Q

Q.1.18. At what speed during takeoff roll does A/T mode change to THR HLD?

A

At 84 KIAS

Reference: FRM B737NG/MAX 4.2.4.1(opens in a new tab)

19
Q

Q.1.19. When does automatic reduction to climb thrust occur when using the autothrottle for TAKEOFF?

A

When reaching the selected THRUST REDUCTION ALTITUDE
which is shown on the FMC MCDU TAKEOFF REF 2/2 page during preflight, or
when the aircraft levels off in ALT HOLD or VNAV PTH

Reference: FRM B737NG/MAX 4.2.4.1