Prior to an engine wash, it is a requirement of the CF6-80C2 engine that the VSVs should be opened and the VBVs closed. At present this operation is performed using an external hydraulic rig – a time consuming and sometimes troublesome job.
KLM approached GE for a solution to this problem and the operation can now be performed using an electronic device supplied by GE connected to the ECU. This involves opening one fan case side only. The GE part number for the VSV/VBV FADEC HMU DRIVER SIMULATER tooling is: 9481M68G01 and the cable set for the CF6-80C2 engine (to make the connection between the ECU and simulator) is 9481M69G01.
In connection with this, and in a further effort to reduce time on the job, Juniper was asked by KLM to look at the possibility of using long engine probes to avoid having to open up the thrust reverser doors. These probes have now been produced, based on the successful long engine probes we presently manufacture for use on the GE90-115B. The part number for these new long probes is: JMP/CF6/D/6511.
The long CF6-80C2 probes were successfully tested in January 2007 on a MyTravel Boeing 767 at Manchester Airport and a good EGT recovery was obtained.
