The engine became operational at Lufthansa Passage in November 1993 and was first used on an A340-200 aircraft.
After the aircraft was sold in 2004, it flew on an A340-300.
Lufthansa Technik said the engine has undergone four full overhauls over the course of its 23-year career.
Bernhard Krueger-Sprengel, head of engine services at Lufthansa Technik, said the milestone demonstrated “the outstanding ability” of the CFM56 engine.
Image - Kentaro Iemoto