As a result of its routine periodic review, EASA has proposed several updates to its Part CS-25 large airplane certification regulations. They include proposed changes to cockpit controls, ventilation operation, oxygen quantity, and a correction to a flap and slat interconnection advisory circular reference.
While some manufacturers and airworthiness authorities, including EASA, already interpret control movement rules as requiring that pilots of different stature “be able to adequately and simultaneously command full differential brakes and full rudder in the same direction,” this interpretation is not universal. Consequently, EASA has proposed wording to clarify the rule’s intent.
The agency also proposed to make amendments that would add an acceptable means of compliance for operating ventilation systems with the air conditioning off. Regarding the quantity of available oxygen, EASA wants to amend requirements by introducing an exception applicable to oxygen chemical generators or small sealed, one-time use, gaseous oxygen bottles. Additionally, a new acceptable means of compliance is also proposed regarding the design and maintenance of these sources of oxygen supply to ensure that oxygen is available.
Comments on the notice of proposed amendments are due by September 18.
