pdf Gfa ad 447 issue 1 Popular
By Tim Shirley Tagged in DG-100, DG-100G, DG-200, DG-200/17, DG-200/17C, DG-300, DG-400, DG-500, DG-500/20ELAN, DG-500/22Elan, DG-500ELANORION, DG-500ELANTrainer, DG-500M, DG-600, DG-600/18M, DG-600M 1119 downloads
gfa ad 447 issue 1.pdf
FAILURE OF A CANTILEVERED BELLCRANK PIVOT MOUNT
A case has been reported where the bellcrank pivot in the elevator drive circuit of a DG-200 failed causing the elevator circuit to jam. Fortunately this was detected in the pre-flight inspection. The type of cantilever pivot support which failed is typical of the pivots used throughout DG gliders. This AD is applicable to the DG-100 all series, DG-200 all series, DG-300, DG-400, DG-500 all series (including powered sailplanes) and DG-600 all series (including powered sailplanes). Before next flight all pivot support brackets which are similar to the one shown in Figure 1 must be tested by applying a torque to the nut. The correct torque will depend on the size of the pivot bolt.
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