Airworthiness Directive适航指令
An airworthiness directive is a mandatory regulatory instruction issued by an aviation authority to correct an unsafe condition on an aircraft, engine, propeller, or appliance. In maintenance and continuing airworthiness documentation, the term appears as a compliance item with effective dates, applicability, required corrective actions, recurring inspection or modification requirements, and specific product serial-number ranges that must be tracked in maintenance records.
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Where this term appears
Translators work with airworthiness directives in maintenance records, continuing airworthiness management systems, service bulletins, and regulatory correspondence. The term appears in compliance tables, logbook entries, and safety communications, often alongside the abbreviation AD. Localization must reproduce mandatory wording carefully because operators use translated texts to schedule inspections and demonstrate continuing airworthiness.
Translation checks
A common error is softening "mandatory" to "recommended" or translating directive as "指导" rather than "指令." Some translators also confuse an airworthiness directive with a service bulletin, which may be voluntary unless mandated. This can cause an operator to miss required compliance actions, creating a safety and regulatory exposure that may affect the aircraft's continuing airworthiness status.
Keep the term aligned across your files
Check procedure sequence, part names, limits and cautions against the supplied references. Applicable aviation or market requirements depend on the product and project pathway.
Provide approved terms and previous translations with the source files. Agree how variants, ambiguous wording and revisions will be reviewed. Terminology maintenance and any termbase handback are confirmed in the project scope. See the 8-step AI + expert workflow.
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