22/12/2025
This AD affects ALL SINGLE SEAT DG GLIDERS
What happened: On one DG-300, one of the control stick bearings separated completely, allowing the control stick to be lifted out. As far as DG know, this is the first and only time this has happened, but obviously, the stick falling off has the potential to be catastrophic.
The fix:
1. All gliders must have a new retaining plate fitted. This plate, in the event of a total bearing failure, will prevent the stick from detaching and retain some aileron and elevator control.
2. The two bearings at the base of the stick assembly must be inspected. If they exceed the acceptable play limits, then these bearings and their retaining rings must be replaced.
For more details and relevant links please see our website.