airworthiness directive

noun

A regulation issued by the civil aviation authority of a country or region, generally in response to the discovery of an unsafe condition affecting particular aircraft, requiring that certain actions (such as specified modifications or enhanced maintenance or inspection requirements) be performed on these aircraft in order for them to remain legally airworthy.

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Meanings

nounairworthiness directive (plural airworthiness directives)

plural airworthiness directives

  1. aeronauticsA regulation issued by the civil aviation authority of a country or region, generally in response to the discovery of an unsafe condition affecting particular aircraft, requiring that certain actions (such as specified modifications or enhanced maintenance or inspection requirements) be performed on these aircraft in order for them to remain legally airworthy.

    Synonyms: AD

Synonyms & antonyms

nounA regulation issued by the civil aviation authority of a country or region, generally in response to the discovery of an unsafe condition affecting particular aircraft, requiring that certain actions (such as specified modifications or enhanced maintenance or inspection requirements) be performed on these aircraft in order for them to remain legally airworthy.

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Cite this entry
APA

airworthiness directive. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/airworthiness%20directive

MLA

“airworthiness directive.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/airworthiness%20directive. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “airworthiness directive,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/airworthiness%20directive.

Source: airworthiness directive on Wiktionary, CC BY-SA 4.0.