EASA AD CF-2026-49
Engine Controls – Throttle Quadrant Assembly – Throttle Lever Jamming - Replacement
Summary
Canadian Airworthiness Directive CF-2026-49 addresses a throttle lever jamming issue in the throttle quadrant assembly (TQA) of Airbus Canada Limited Partnership BD-500-1A10 and BD-500-1A11 aircraft. The directive mandates replacement of affected TQAs due to a production torque defect causing thrust reverser lockout cam detachment. This AD ensures safe engine control by preventing throttle lever jamming during flight.
What Changed
This new Airworthiness Directive introduces a mandatory replacement of specific throttle quadrant assemblies identified by part and serial numbers. It prohibits installation of affected TQAs and requires operators to follow the procedures outlined in ACLP Service Bulletin BD500-761001. The AD addresses a previously uncorrected production quality issue causing throttle lever jamming.
Why It Matters
This AD is critical for operators and maintenance organizations to prevent loss of thrust control and potential in-flight shutdowns caused by throttle lever jamming. Compliance reduces the risk of rejected take-offs or loss of airplane control, enhancing flight safety. It also ensures adherence to Canadian Aviation Regulations regarding airworthiness directives.
What To Do
Operators of Airbus Canada BD-500-1A10 and BD-500-1A11 aircraft must remove and replace affected throttle quadrant assemblies within 1100 flight hours from October 22, 2026. Installation of affected TQAs is prohibited from the effective date. Maintenance teams should follow ACLP Service Bulletin BD500-761001 for removal and installation procedures.
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