In the wake of several recent high profile incidents where planes have gone missing, the National Transportation Safety Board issued new recommendations designed to help find wreckage faster and determine what caused crashes.
원문출처 : http://edition.cnn.com/2015/01/22/politics/ntsb-guidelines/index.html?eref=edition
원문출처 : http://edition.cnn.com/2015/01/22/politics/ntsb-guidelines/index.html?eref=edition