This is a usual scenario especially where the aircraft owner feels that the aircraft is safer even without compliance. In fact, if a service bulletin doesnât have an airworthiness directive, the FAA doesnât deem its recommendations to be mandatory or necessary.
Photo Credit OtmarW/iStock/Getty Images. If the weight-for-length calculation on your baby's growth chart drops below the fifth percentile, he is considered underweight. This means that more than 95 percent of babies his age weigh more than he does.
BMI percentiles show where your child's weight falls compared to other kids of the same age and gender. For instance, if your toddler's BMI is in the 75th percentile, she is heavier than 75% of toddlers her age.But at the 75th percentile, she is still in the healthy weight zone.Hereâs how kids' BMI percentiles break down: 1  Underweight: less than the 5th percentile.MI percentiles show where your child's weight falls compared to other kids of the same age and gender. For instance, if your toddler's BMI is in the 75th percentile, she is heavier than 75% of toddlers her age.