FAA Revises Airworthiness Directive for Boeing 747 Series Airplanes

Summary

The Federal Aviation Administration (FAA) is revising an existing airworthiness directive to specify service information for corrective actions related to fatigue cracks found in lower lobe fuselage frames on Boeing 747-100, 747-100B, 747-100B SUD, 747-200B, 747-300, 747-400, 747-400D, and 747SR series airplanes, in an effort to prevent rapid decompression of the aircraft.