Summary
We propose to adopt a new airworthiness directive (AD) for all DORNIER LUFTFAHRT GmbH Model 228-212 airplanes. This proposed AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as main landing gear axle failure caused by initial fatigue cracking and small pre-damage by corrosion. We are issuing this proposed AD to require actions to address the unsafe condition on these products.