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Gfa 079an

MISCELLANEOUS AIRWORTHINESS INFORMATION - ASK 21

1. Optional Tail wheel. Alexander Schleicher Technical Note ASK 21 No 2 describes the optional installation of a Tail Wheel. 2. Automatic Elevator connection. Alexander Schleicher Technical Note ASK 21 No 11 describes the optional installation of an Automatic Elevator Connector on Serial Numbers 21205 and below. This modification is standard on serial numbers 21206 and higher. 3. New Canopy Locking System. Alexander Schleicher Technical Note No. 15 describes the optional installation of an improved canopy locking system. This modification has been incorporated as standard on serial numbers 21223 and 21233 and above. 4. Hand operated rudder actuator. To allow disabled pilots who cannot operate normal rudder pedals to fly Alexander Schleicher have issued ASK 21 Technical Note No. 25. 5. Wedekind Safety Sleeves. Alexander Schleicher Technical Note No. 27 for the ASK 21 allows the installation of Wedekind Safety Sleeves on the L’Hotellier couplings.  Item 1. Trim system Maintenance. Alexander Schleicher Technical Note ASK 21 No 18 describes the correct maintenance procedures for the ASK 21 Trim system  to prevent jamming the Bowden cable between the control column and the right hand aileron stop. This Technical Note forms part of this AN.