Regulation & law · 01/10/2002

Boeing Issues Airworthiness Directive for 747-200B, -300, -400, -400D, and -400F Series Airplanes

The Federal Aviation Administration (FAA) has issued an airworthiness directive requiring Boeing Model 747-200B, -300, -400, -400D, and -400F series airplanes to undergo a mandatory modification of fire extinguisher discharge tubes to prevent engine fires