EASA Regulations for Israel Aerospace Industries CAA Israel STC SA300

Supernumerary Oxygen System Mask Replacement

Airworthiness Directive AD ISR I-35-2022-12-9 issued by the Civil Aviation Authority of Israel mandates the replacement of supernumerary oxygen system masks on Boeing 737-300/-400 and 737-700/-800 aircraft. The directive applies to aircraft serial numbers listed in service bulletins SB 365-35-M058 and SB 365-35-M011. It requires the installation of oxygen masks with TSO C64a authorization to ensure compliance with airworthiness regulations.