Business · 04/02/2010Updated: 10/17/2026 · 1 min read

Sikorsky Issues Airworthiness Directive for S-92A Helicopters

The Federal Register has published an amendment to Airworthiness Directive 2009-23-51, requiring cleaning and inspection of main gearbox assemblies in S-92A helicopters to address cracks and corrosion, and mandating repairs or replacements as necessary to prevent loss of control.