Cargo Compartment Trim Protectors S/N 31201-Sub And S/N 41201-SubOur Cargo Compartment Trim Protector Kit installs easily into existing screws on the lower edge of the cargo compartment to protect it from costly damage. *Consists of 2 stainless steel scuff plates. Installs into existing screw locations. Compatible on aircraft s n 31201 sub and s n 41201 sub (has a seal installed on the airframe). 1 kit modifies 1 aircraft.