From the Flying e-newsletter
Thielert Woes Spell Trouble for Diamond
Thielert Aircraft Engines stock has plummeted to near worthlessness, causing Austrian-based Diamond Aircraft and, to a lesser degree, Cessna to face an uncertain future for their diesel-engine projects. Thielert, a German manufacturer of diesel aircraft engines (used on the Diamond Twin Star and a version of the Cessna 182) has dismissed company founder Frank Thielert and the company chief financial officer following accusations of criminal financial wrongdoing. Following a now-ongoing formal insolvency process, a new executive board must be assembled and an interim trustee appointed for the company to continue operations.
This, coupled with their apparent bad reliability as mentioned in this thread before it was hijacked, could very well spell the end for Thielert