New OSB40-079 for Fuel Tank Vent Protection

[Rick]

I just received a notification from Diamond about a new OSB. The SB reads:

Installation provisions for a safety mesh to prevent small insects from entering the fuel tank
vent holes while the airplane is parked on ground.

The instructions simply say:

Drill a hole in the fuel vent cover system, install a camloc and retaining nut i.a.w. drawing.

and then some drawing numbers are listed. Approximately 2 hours work, they say.

Any idea what this is? What are they trying to protect, that needs a new hole for a camloc? I'm confused...

[Steve]

I think there have been a few instances of insects causing blockages of the fuel vent holes under each wing. This SB installs a screen over the vent holes to address that.

[Ultrapilot1]

I read it also but I am unable to find the referenced drawings.