Japan Air Self-Defense Force (JASDF), Aeromedical Laboratory (AML) conducted aeromedical examination for administrative pilots（ages 40 and over）. We reviewed incident cases in the process of the aeromedical examination from fiscal year 2008 to 2019. Totally 57 incident cases were reported. For each case, we considered about the perspective of occurrence modes, affiliation years of the parties, their mental and physical conditions, and their working conditions. Concerning to the perspective of occurrence modes, “entry/input error” was the most common (25 cases (44%)). Assumed to be much opportunity of entry/input process affected. The most frequent finder was “other than the party involved”, suggesting that multiple personal performing the work are important in preventing serious accidents. Concerning to the perspective of affiliation years of the parties, “less than one year” was most common (20 cases (35%)). The lack of familiarity with the work were assumed to be affected. Next common was “less than 5 to 10 years” (15 cases (26%)). Misconceptions were assumed to be affected. “Performance while vocalizing”, “confirmation after performance”, “confirmation by another person”, and “improvement of work environment” are countermeasures against “entry/input error”. Sufficient pretraining for beginners and re-education for veterans can be countermeasures against incident.

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