Fatigue life is the expected service duration of a structure or component, measured in flight hours, cycles, or calendar time, before cyclic loading is likely to initiate cracking or failure. In aerospace localization it appears in structural repair manuals, maintenance planning documents, life-limited parts lists, and reliability reports, where it is expressed as a design value and drives inspection intervals and replacement thresholds.
Translators encounter fatigue life in maintenance schedules, life-limited parts tracking, damage tolerance assessments, and airworthiness directives. It is often presented in tables with units such as flight cycles or hours, so localization must preserve numeric values, unit conversions, and threshold conditions exactly. Multilingual operators rely on these translations to schedule inspections and remove parts before reaching the published life limit.
A common error is translating fatigue life as “service life” or “durability” without the cyclic-loading context, which can blur the distinction between fatigue limits and general wear or corrosion. Another mistake is converting units incorrectly or omitting the reference condition, for example by dropping “flight cycles,” so the stated threshold becomes ambiguous and may lead to premature or overdue replacement.
EASA and CE certification impose language requirements on maintenance and safety documentation. These terms carry airworthiness and liability implications, so they are rendered against the governing standard rather than translated freely.
Angel Translation locks terms like this into a project terminology base before expert review begins, so the same source term resolves to the same target term across every document in a submission — and stays consistent in the next revision. See the 8-step AI + expert workflow.
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