Cargo floor, cargo door and forward service door. (340 640 (340D), 440 Military C-131E 640 (440D))
Enlarge cargo door on aircraft modified per STC No. SA2733WE.
Installation of replacement floor panels in the cabin and cargo compartment.
Modification of a cargo restraint system in accordance with DER Services Master Document List No. MDL-2003-228-1, dated December 1, 2003, or later FAA approved revision.