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Possible applications of PLC in aircraft are investigated. The scenario which has been selected is a data transmission for the remote control of the lighting system of the cabin. Indeed, the tree-shaped architecture of the cabling is complicated enough to be representative of many other harness aircraft configurations. Narrow band and wide band channel characteristics are deduced from a theoretical model of the propagation on multi-wire transmission lines. A software tool simulating a PLC transmission based on OPERA specifications was developed and examples on the performances of the OFDM link are presented.