Removed the oil filler assembly from the aircraft. Drilled a 3/32 hole in the inside rim of the oil filler. Installed a slip ring in the hole and put one end of the chain on the ring and close it with the pliers. Mounted another slip ring into the oil cap and put the other end of the chain onto the ring and closed it with pliers. Put the filler assembly back into the aircraft and tighten the hose clamp on the top of the oil tank.
