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| English | Russian |
| hours in service | реальная наработка (Alexander Demidov) |
| hours in service | наработка (Remove and replace magnesium tail booms with more than 400 hours time in service on the effective date of this AD within 100 further hours in service. Alexander Demidov) |
| total hours in service | суммарная наработка (Alexander Demidov) |