From airbus web page
DECEMBER 04, 2002
Enhanced CFM engine flight test under way
The new CFM56-5C/P powerplant has entered its certification campaign, flying on the A340-300 test aircraft alongside three CFM56-5C engines. Following its three hour and 20 minute maiden flight on 19 November, the engine has now performed six flights contributing to the 50-hour flight tests. The new CFM56-5C/P offers reduced fuel consumption and maintenance cost, and a higher standard of environmental friendliness compared to the CFM56-5Cs currently installed on the worldwide fleet of A340-200s and A340-300s. Following its certification, the CFM56-5C/P will be installed on the A340-300s Enhanced ordered by South African Airways and SWISS. The engine is also available as a retrofit to all in-service A340-200s and A340-300s.