Flight Operations & Training regional seminars

“Unreliable Airspeed” for A320/A330/A340

Flight Operations & Training regional seminars

Airbus Customer Services

Ludovic BOSELLI

Captain Dominique DESCHAMPS

© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.

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© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.

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© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.

Unreliable Airspeed Procedure - General Philosophy

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Unreliable Airspeed Indication detected

Troubleshooting

Flight continuation

with available systems

Safe conduct of the flight impacted?

Memory Items Yes

No

© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.

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© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.

Pitch and Thrust tables – Enhancements

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Unreliable Airspeed Indication detected

Troubleshooting

Flight continuation

with available systems

Safe conduct of the flight impacted?

Memory Items Yes

No

© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.

Pitch and Thrust tables – Enhancement 1/3

Reminder: Current A330 FCOM/QRH Tables

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Pitch and Thrust tables – Enhancement 1/3

Enhancement: New A330 FCOM/QRH Tables

Single Pitch

for a

large range of Flight Level

© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.

Pitch and Thrust tables – Enhancement 2/3

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Clarification of the FLYING TECHNIQUE for level flight:

Stabilize the altitude. When altitude is stabilized:

‐ If the pitch is above the target pitch, increase the thrust and maintain the altitude.

‐ If the pitch is below the target pitch, decrease the thrust and maintain the altitude.

When the pitch reaches the target pitch, adjust the thrust to keep this target pitch.

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Pitch and Thrust tables – Enhancement 3/3

FL 250

Aircraft with BUSS Aircraft without BUSS

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3 ADRs OFF

If all airspeeds are still unreliable and below FL250:

BUSS - Back Up Speed Scale

The BUSS replaces the PFD speed scale:

on both PFDs

(not on ISIS/Standby Instrument)

CAPT

PFD

F/O

PFD

ISIS

(or Standby

Instrument)

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Future reversible BUSS

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3 ADRs set to OFF

Reversible BUSS

BKUP

SPD/ALT

Today

At least one

ADR remain ON

BUSS (current)

Tomorrow: available soon

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Future reversible BUSS

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BKUP

SPD/ALT BKUP

SPD/ALT

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The Flight Crew may select the reversible BUSS :

- At any time during Unreliable Airspeed procedure

- On the affected side only

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Conclusion of enhancements

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Available for A320/A330/A340 in

Q4 2015

Certified

- For A330/A340 in Q1 2016

- For A320 in Q2 2016