EASA SIB CASA-2013-06
Bombardier CL-600-2B19 Aeroplanes - Potential Jam of the Manual Landing Gear Release Cable
Summary
Transport Canada Civil Aviation Safety Alert CASA 2013-06 addresses a potential jamming issue of the manual landing gear release cable on Bombardier CL-600-2B19 aeroplanes. The alert highlights a condition where the manual gear release system can become inoperative due to a cable dislodging and jamming under the flight deck floor area. This issue arises from a mis-rigged manual gear release system caused by distortion of a cable turnbuckle near the forward avionic bay floor panel.
What Changed
This new safety alert introduces awareness of the risk that the manual landing gear release cable can jam if the system is mis-rigged, particularly due to damage to the cable turnbuckle during maintenance. It emphasizes the need for inspections and careful maintenance practices to prevent the cable from jumping the pulley and rendering the emergency manual gear release inoperative.
Why It Matters
This alert is critical for operators, maintenance personnel, and compliance teams as it identifies a safety risk that could compromise emergency landing gear deployment. Failure to detect or correct this condition could lead to inoperative manual gear release during emergencies, impacting aircraft safety and regulatory compliance. Proper inspection and maintenance diligence are essential to ensure continued airworthiness of affected Bombardier CL-600-2B19 aircraft.
What To Do
Operators of Bombardier CL-600-2B19 aeroplanes should inspect the manual gear release system, focusing on the condition of all associated turnbuckles as outlined in AMM 32-34-00-220-801. Maintenance personnel must exercise caution to avoid damaging the turnbuckle during work in the forward avionic bay under-floor area. Any defects or malfunctions must be reported to Transport Canada Continuing Airworthiness in accordance with CAR 521 Div. IX requirements.