News

09/24/07

Threshold Aviation Group announced today that it has been appointed as a Clifford Development service center for the Cessna Citation II engine conversion program. Clifford Development is currently completing a Supplemental Type Certificate (STC) to re-engine Cessna Citation II (CE-550) aircraft with 3,000 lb. thrust Williams International FJ44-3 engines including integration of the FADEC (Full Authority Digital Control) system...more

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