a330-300 autopilot issue?

Support
1

I dont know if someone have the same issue, but I am flying from EGLL to KATL and the altitude setup to 36,000, every time I click the ALT button the plane go in to deep dive. I manually went up to 36000 and then press the button and then Again deep dive. Is any problem with A/P today?

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2

Was it highlighted orange when you pressed it?

3

Speed stable M 0.85, trim 0%. Gear up, NAV on, spoilers off, flaps 0.

4

M0.85 is a little fast for an A330 since they normally fly at around M0.82, Anyways I’ve never heard of this issue. Were the winds calm? what was the aircraft’s weight?

5

Yeah, is gray now because every time I turn it on “orange” do the deep dive

6

Oh okay, Just for now put altitude off and leave the V/S at 0

7

I normally fly a330 M .85 and no problems before. Winds 37kts NW. aircraft is heavy but definitely way under MTOW.

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8

Hey there,
There is a really known issue when the aircraft “dives” up or down during final, after turning off the A/P.

  • Please make sure to hold your device into a comfortable position and hold it. Pause your flight and press “Calibrate”. Then disengage the A / P.
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9

Okay, have you tried flying at a lower altitude? Perhaps 33000ft ?

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10

Yeah thats what Im doing now, but I was wonder if it was an issue with A/P for this plane. I love Airbus, I fly a330, a321 almost daily and never had this problem.

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11

I fly A330s sometimes, They fly decently but they do need a very low altitude in the first 1500nm of the flight.

12

That was it!! The calibrate. I pause and recalibrate and fix the issue. Weird because I did calibrate at gate. Do I have to calibrate every so often in fly?

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13

No, you don’t have to calibrate in-flight but you should stay in the same position if you are going to disable A/P

For Example: I takeoff at my desk with my legs crossed on the chair, I need to land in the same position.

14

I always fly them between 35000 and 39000 no problem at all. I flew same route one time (real commercial flight) EGLL TO KATL and the pilot push this baby to 40000😮😮, I was like damn this guy is really pushing this bird lol.

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15

Ah ok cool thanks for the tip👍🏻👍🏻

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16

40000 Is acceptable since this is a long haul aircraft :)

17

Glad to hear it worked. 👍

You Calibrate the device in order to reset your controls. The controls of course, is the free movement of the aircraft, whenever turning off your A / P, or Autopilot.

Calibrate and follow the rule before Final or Takeoff, and when the autopilot is off.

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