He is an A&P, an IA, an ASC, and a Designated Airworthiness Representative (DAR) with 10 years of experience teaching aviation maintenance.
他是一个A&P，保险业监督，一个ASC和指定的适航代表（DAR）与10年的教学经验，航空维修。
He is an A&P, an IA, an ASC, and a Designated Airworthiness Representative (DAR) with 10 years of experience teaching aviation maintenance.
他是一个A&P，保险业监督，一个ASC和指定的适航代表（DAR）与10年的教学经验，航空维修。
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