Landing gear sockets should be checked regularly for those who fly off of grass and certainly after a hard landing. Using a bright light will help find a crack before it becomes rusty like this one.
In Case You Missed It
Give Yourself a Brake
Brakes are pretty simple to install and maintain, but they are also pretty important....
A Custom Maintenance Manual for a Custom Aircraft
It may not be required, but it's essential for performing thorough inspections.
Light Stuff
Sport Pilot rules make it possible to fly a powered parachute or flexwing trike at night, but make sure you have the right equipment.