The objective of this Notice of Proposed Amendment (NPA) is to reflect the state of the art of large aeroplane certification and improve the harmonisation of CS-25 with the Federal Aviation Administration (FAA) regulations. To that end, this NPA proposes amendments to CS-25 following the selection of non-complex, noncontroversial, and mature subjects.
In particular, this NPA proposes amendments in the following areas:
Item 1: Go-around handling qualities and performance;
Item 2: Minimum control speeds;
Item 3: Fuel tank and system lightning protection;
Item 4: Cabin safety (various topics);
Item 5: Electronic AFMs – computation of misleading primary information;
Item 6: On-board weight and balance systems;
Item 7: Air conditioning systems;
Item 8: Flight guidance systems;
Item 9: Primary flight displays during unusual attitude and declutter modes;
Item 10: Lightning protection and electrical bonding and protection against static electricity; and
Item 11: Operation without normal electrical power.
Overall, these proposals would provide a moderate safety benefit, would have no social or environmental impacts, and would provide some economic benefits by streamlining the certification process.