Regulation & law · 06/10/1999Updated: 10/17/2026 · 1 min read

FAA Proposes New Airworthiness Directive for Short Brothers Model SD3-60 SHERPA, SD3-SHERPA, and SD3-30 Series Airplanes

The Federal Aviation Administration (FAA) has proposed a new airworthiness directive requiring replacement of oxygen system O rings on Short Brothers Model SD3-60 SHERPA, SD3-SHERPA, and SD3-30 series airplanes to prevent oxygen loss in emergency situations.