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.
Ultrasound is used to find out if a fetus is smaller than normal for their age. This condition is called intrauterine growth restriction. The most common definition of small for gestational age (SGA) is a birth weight that is below the 10th percentile. A developing baby with intrauterine growth restriction will be small in size and can have problems such as: Increased red blood cells.