airworthy

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airworthy

(of an aircraft) safe to fly
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

airworthy

Aircraft or equipment complying with regulations prescribed by the competent authority and certified fit for flight. A certificate of airworthiness is issued for aircraft and equipment by an appropriate authority.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved