PARIS (Reuters) - The French state plans to inject 5 billion euros ($6.5 billion) into banks with the aim of financing airplane purchases to help European planemaker Airbus (EAD.PA), a French government source said on Sunday. "There is indeed a plan to lend 5 billion euros to the banks to finance Airbus contracts," the source said, confirming an earlier report in the business newspaper Les Echos. http://uk.reuters.com/article/pressReleases/idUKTRE50O1MX20090125