http://www.aeros.com.ua/news.php?lang=english&id=260

We have become aware of a potential problem with the Aeros Combat and Discus
hang gliders. The pulley cap screw (marked red on the photo below) was loosened
on the VG pulleys.

We strongly recommend you to unscrew cap screws from all pulleys on your
gliders, and screw them back using a Loctite compound.

Also, refer to the safety bulletin #7 from 19.05.2009 and check the following
items:

sweep wire condition along its entire length;

sprog angles.

Make sure the sweep wire shackle is bolted and a safety nut is tighten.