The rule of thumb is that aircraft are built for a 20-year economic life. That doesn't mean they fall out of the sky after 20 years. But it does mean they need tender loving care.
The rule of thumb is that aircraft are built for a 20-year economic life. That doesn't mean they fall out of the sky after 20 years. But it does mean they need tender loving care.
© 2020 Inspirational Stories
© 2020 Inspirational Stories