Summary
We propose to supersede Airworthiness Directive (AD) 2017-08- 09 for DG Flugzeugbau GmbH Models DG-500MB gliders that are equipped with a Solo 2625 02 engine modified with a fuel injection system following the instructions of Solo Kleinmotoren GmbH Technische Mitteilung (TM)/Service Bulletin (SB) 4600-3 ``Fuel Injection System'' and identified as Solo 2625 02i. 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 the potential of an in-flight shut-down and engine fire due to failure of the connecting stud for the two fuel injector mounts of the engine redundancy system on gliders equipped with a Solo 2625 02i engine. This proposed AD adds the DG Flugzeugbau GmbH Model DG- 1000M glider equipped with Solo 2625 02i engines to the applicability. We are issuing this proposed AD to requireactions to address the unsafe condition on these products.