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Use "airworthiness" in a sentence
"The sleigh itself must qualify as an aircraft, and as such has to be licensed by and have a certificate of airworthiness from the Civil Aviation Authority."
"So, what happened was the FAA said, hey, we need all of our supervisors and all of our airlines to go out and re-inspect all of these things they call the airworthiness directives to make sure that these planes 'inspections are basically up to snuff."
"The FAA documents, officially called airworthiness directives, were posted on the Federal Register's website Thursday and officially appeared in the publication Friday."