www.airborne.com.au/images/aw_directives/SB-019.pdf

It has come to Airborne's attention of cases where the hinged
batten fitting may come unloaded during flight. The unloading of one or more
hinged batten fittings will have a adverse effect on control of the aircraft.

If you are unable to test your latches for security a cable tie can be tensioned
around the latch when the latch is closed. This is quite a simple procedure and
can be done without disassembling the wing. A commercially available cable tie
with width of 4. 8mm and thickness of 1.4mm is the best option for additional
security. Our testing has found that even an old fitting with obvious damage
will hold the required test load.