Transport i infrastruktura · 22/08/1994
Airworthiness Directives; De Havilland Model DHC-7 Series Airplanes
The Federal Aviation Administration (FAA) adopts a new airworthiness directive requiring the removal and replacement of corroded aluminum washers in the DC firewall terminal block assembly of De Havilland Model DHC-7 series airplanes to prevent electrical power interruptions.