Oxygen – Crew Oxygen Cylinder Assembly – Inspection
Superseded. Comply with 2024-0186, which replaces this document.
- Published
- Effective
- Deadline
- Replaces
- 2018-0245R1
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators must inspect each affected oxygen cylinder assembly within six months of the effective date following Airbus Alert Operator Transmission A35P010-17 instructions. If any discrepancies are found, the affected part must be replaced with a serviceable part before the next flight. From the effective date, only serviceable affected parts may be installed on aircraft.
Summary
EASA Airworthiness Directive 2019-0168 is an airworthiness directive issued for Airbus A350-941 and A350-1041 aeroplanes concerning the inspection of crew oxygen cylinder assemblies with part numbers 4441227-058-000 and 4441227-058-001. It addresses a design defect causing loss of retention of the regulator inlet filter retainer, which could lead to fire risk during ground operational testing. The directive mandates inspections and corrective actions to ensure continued airworthiness of affected oxygen cylinders.
What changed
EASA Airworthiness Directive 2019-0168 supersedes AD 2018-0245R1 and expands the scope to include oxygen cylinder assemblies with part number 4441227-058-001 due to new findings of loose filter retainers caused by production torque issues. It removes the previous requirement to replace defective cylinders with assemblies having part number 4441227-058-001 and retains inspection and corrective action requirements. This AD is an interim measure pending a new oxygen cylinder assembly design.
Why it matters
This directive is critical for aviation professionals as it addresses a safety risk involving oxygen system components that could cause fire during ground testing. Operators and maintenance teams must ensure affected oxygen cylinders are inspected and any defects corrected to maintain compliance and safety. Failure to comply could result in unsafe aircraft operation and regulatory violations.
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