Meanwhile the current Cadet engine contract is for an initial five - year period until the end of 2017 .
Meanwhile the current Cadet engine contract will be reviewed towards the end of this period , with an option for the MSA to grant a two - year extension .
Meanwhile the current Cadet engine contract is for an initial five - year period until the end of 2017 and will be reviewed towards the end of this period , with an option for the MSA to grant a two - year extension .