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If, in the event of a failure, there is no significant out-of-trim condition or deviation of flight path or attitude but the landing is not completed automatically, such an automatic landing system is considered as:
  • A
    fail-safe.
  • B
    fail-operational.
  • C
    fail-redundant.
  • D
    fail-passive.
  • Fail passive - In the event of a failure, there is no significant out-of-trim condition or deviation of flight path or attitude, but the landing is not completed automatically.
  • Fail operational - In the event of a failure, the approach, flare, and landing can be completed by the remaining part of the automatic system.

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