6.7.1 Contingency and degraded mode procedures for multiple mode of operations

In the case of multiple mode of operation, contingency and degraded mode procedures should take into account the effect of any event on all aerodromes connected to one RTM as well as how failures may interfere between the aerodromes. The following cases would need to be considered in the case of multiple mode of operation from an RTM: failure of one or several systems for one aerodrome; failure of one or several systems for more than one aerodrome but less than all connected aerodromes (this use case is only applicable in the case of more than two connected aerodromes); and failure of one or several systems for all connected aerodromes.