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A220 Flight Director Anomaly

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Questions and Answers

What kind of anomaly has A220 Flight Standards become aware of?

Flight Director anomaly (correct)

Engine anomaly

Navigation system anomaly

Landing gear anomaly

What happens when the FCP Altitude Selector is adjusted at approximately the same time that (V)ALTS CAP vertical mode becomes active?

The autopilot disengages

The aircraft loses altitude control

The Flight Director provides erroneous vertical guidance (correct)

The aircraft slows down

What may the commanded pitch attitude be as a result of this anomaly?

+25⁰ nose up or -10⁰ nose down

+20⁰ nose up or -15⁰ nose down (correct)

+30⁰ nose up or -20⁰ nose down

+15⁰ nose up or -25⁰ nose down

What could happen if the aircraft follows the erroneous Flight Director command?

The aircraft will lose altitude rapidly Signup and view all the answers

What specific action is recommended to defend against the described threat?

Actively monitor and crosscheck in anticipation of the threat Signup and view all the answers

What should be verified prior to changing the altitude with the FCP Altitude Selector?

Verify the vertical mode is not approaching or already in (V)ALTS CAP Signup and view all the answers

What does FOQA data confirm regarding the reported anomalies?

The reported anomalies align with Crews' reports about excessive pitch guidance Signup and view all the answers

What is the consequence of the Flight Director providing erroneous vertical guidance?

+20⁰ nose up or -15⁰ nose down pitch attitude Signup and view all the answers

What is the primary recommendation for defending against this anomaly?

Actively monitor and crosscheck in anticipation of this threat and intervene as necessary to protect the aircraft’s flight path and energy state. Signup and view all the answers