Viking Air Ltd. (Bombardier, De Havilland Canada) DHC-6 Aeroplanes - Inspections of Elevator Control Cables
- Published
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of Viking Air Ltd. DHC-6 Twin Otter airplanes should conduct thorough inspections of all stainless steel elevator control cables as soon as possible, paying special attention to areas prone to chafing. Inspections should also include carbon steel cables if installed. Findings must be reported to the respective National Aviation Authority and to Viking Air Limited. Compliance with TCCA Airworthiness Directive CF-2000-14 and related service bulletins is recommended.
Summary
EASA Safety Information Notice No. 2007-38 Revision 1 addresses inspections of elevator control cables on Viking Air Ltd. (formerly Bombardier and De Havilland Canada) DHC-6 series Twin Otter airplanes. The notice follows a fatal accident involving a DHC-6 in French Polynesia where worn stainless steel elevator control cables were found. It highlights the need for thorough inspections of elevator control cables to detect wear and chafing that may not be visible during routine checks.
What changed
This revision of Safety Information Notice 2007-38 incorporates references to Transport Canada Civil Aviation (TCCA) documents and directives, emphasizing the recognized authority of TCCA as the State of Design. It introduces recommendations for detailed inspections of both stainless steel and carbon steel elevator control cables on DHC-6 Twin Otter airplanes and references TCCA's Airworthiness Directive CF-2000-14 and Service Difficulty Alert AL-2007-03.
Why it matters
The notice is critical for aviation professionals because it raises awareness of a potentially hidden safety risk involving elevator control cables that can suffer significant wear without obvious visual signs. Operators, maintenance organizations, and compliance teams must ensure that inspections are thorough and adhere to the latest guidance to prevent possible control failures and enhance flight safety. It also underscores the importance of following manufacturer and regulatory maintenance instructions closely.
More for Viking Air DHC-6
All 6- EASA AD CF-2021-42Engine Controls — Binding of Fuel Control Unit Push Rod End BearingsDec 7, 2021
- EASA AD CF-2020-45R1Flight Controls — Loose Rudder Pedal Torque Tube Quadrant Riveted ConnectionApr 20, 2021
- EASA AD CF-2020-05Wings — Cracking and Corrosion of Aileron Internal StructureMar 17, 2020
- EASA AD CF-2018-28Flight Controls — Worn Elevator Cables - InspectionOct 16, 2018
- EASA SIB 2009-37
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