Airworthiness Directives; Airbus SAS Airplanes

FAA / Federal Register · 2019-02931

We propose to adopt a new airworthiness directive (AD) for all Airbus SAS Model A350-941 and -1041 airplanes. This proposed AD was prompted by reports of loss of retention of the regulator inlet filter retainer on certain crew oxygen cylinder assemblies. This proposed AD would require an operational check of the crew oxygen cylinder assembly, replacement of an affected assembly, and eventual replacement of all affected assemblies with redesigned serviceable assemblies. We are proposing this AD to address the unsafe condition on these products.