Oxygen System — Passenger Oxygen Mask Lanyard Improper Sleeve Loop Crimping and/or Ends not Sealed
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of Bombardier CL-600-2B16 aircraft listed must visually inspect passenger oxygen mask lanyards within 48 months from February 23, 2023, following Bombardier Service Bulletin 605-35-008 instructions. If defects are found, replace the lanyards before further flight. Additionally, installation of affected oxygen mask lanyard kits with specified part numbers and lot numbers is prohibited from the effective date of the directive.
Summary
Canadian Airworthiness Directive CF-2023-06 addresses issues with the passenger oxygen mask lanyard assemblies on Bombardier Inc. model CL-600-2B16 aircraft, specifically serial numbers 5702 through 5988. The directive identifies improper sleeve loop crimping and unsealed ends on certain oxygen mask lanyards that could prevent oxygen flow during emergencies. It mandates inspection and, if necessary, replacement of affected lanyards to ensure passenger safety.
What changed
CF-2023-06 introduces a new requirement for operators of affected Bombardier CL-600-2B16 aircraft to inspect passenger oxygen mask lanyards within 48 months and replace any defective assemblies before further flight. It also prohibits installation of certain oxygen mask lanyard kits with specified part numbers and lot numbers. This directive is a new regulation addressing a specific manufacturing defect in oxygen mask lanyards.
Why it matters
This directive is critical for aviation professionals because defective oxygen mask lanyards can result in no oxygen supply to passengers during an emergency, posing a serious safety risk. Operators, maintenance organizations, and compliance teams must ensure inspections and replacements are performed to maintain airworthiness and regulatory compliance. Failure to comply could lead to grounding of aircraft or unsafe flight conditions.
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