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.
Each BMI chart is divided into percentiles. A child whose BMI is equal to or greater than the 5th percentile and less than the 85th percentile is considered a healthy weight for his or her age. A child at or above the 85th percentile but less than the 95th percentile for age is considered overweight.