Story ID: 
EASA Proposes Updates to CS-25 TC Regulations
By: Gordon Gilbert
Caption: EASA recently published a regular update notice of proposed amendment that presents changes to CS-25 large airplane type certification standards. 
Word Count: 183
EASA recently published a regular update notice of proposed amendment (NPA) that presents changes to CS-25 large airplane type certification standards. Regular amendments are issued when data is available following an update of industry standards, feedback from certification activities, or “minor” issues raised by stakeholders. Lessons learned from accident and incident investigations may also be addressed in regular updates when the topic is “not complex and not controversial.”

Updates to CS-Part 25 certification requirements are proposed in the following areas: ditching survivability in terms of structural analysis and flotation times; human factors assessment of installed systems and equipment in the cockpit; performance and handling characteristics in icing conditions; brakes and braking systems certification tests and analysis; installed oxygen equipment and supply; air conditioning OFF maximum time period; and cabin crew portable oxygen equipment.

The proposed updates include new requirements and amendments to current regulations. Comments on the NPA are due October 6. According to EASA, any proposed amendments that are adopted either in full or modified in response to comments will not be published as final certification standards until 2024.