The Federal Aviation Administration (FAA) is proposing a new airworthiness directive for certain Safran Helicopter Engines, specifically the Arriel 2C and Arriel 2S1 model turboshaft engines. This proposed directive is in response to reports of error messages caused by a defective varnish on the digital engine control unit (DECU) circuit board, which can lead to malfunctions. The directive would require replacing affected DECUs to prevent potential loss of engine control. The FAA is accepting comments on this proposal until April 12, 2021.
Simple Explanation
The FAA wants to make sure certain helicopter engines are safe because a part inside can get messed up and cause problems. They say replacing this part can stop these problems, and they want people to tell them what they think about this idea by April 12, 2021.