NPA 2021-02

The objective of this Notice of Proposed Amendment (NPA) is to improve rotorcraft occupant safety in the event of a bird strike.

This NPA proposes to introduce a new risk-based certification specification to prevent windshield penetration on small rotorcraft (CS-27) with higher passenger capacities.

The new proposed CS.27.631 is similar to CS 29.631 on safe landing, but is only applicable to the windshield.

The proposed amendments are expected to increase the safety of rotorcraft operations.