9-11. ADDITIONAL INSPECTION CRITERIA (CONT).
Wood waterproofing is hazardous and flammable. Do not breath vapors and only apply
waterproofing in a well-ventilated area. Keep away from open flames. Wear protective
gloves and eye protection when applying waterproofing. Failure to comply may result in
injury or death to personnel.
Notify direct support maintenance or supervisor if welding is required.
Damage and Repair.
Patch. Any repair of a wall panel that adds or replaces material without complete replacement of the
panel. An acceptable patch is of permanent design, of similar material and configuration and
weather-proof. Patch is a generic repair term, which for purposes of this inspection criteria, is reserved
exclusively for repairs of non-primary components such as wall panels.
Splice. Any repair of a primary (main) structural component (member) that replaces material without
complete replacement of the member. Gussets, backup plates or other reinforcement (protector) plates
are not to be construed as splices. Splice is a regulatory repair term, which for purposes of this inspection
criteria, is reserved exclusively for repairs on components of the primary structure.
Gusset. Reinforcement plate, usually triangular in shape, welded between adjacent components to
reinforce the structure and provide added resistance to handling damage.
Backup Plate. A reinforcement (doubler) plate installed on the backside of a structural component and
not on the exterior of the component's profile. The backup plate serves to stiffen and strengthen the
Insert. A specific type of repair in which replacement material is fitted flush with the original component
and only a partial profile of the component's cross section is replaced.
Section. A specific type of repair in which replacement material is fitted flush with the original
component and the entire profile of the component's cross section is replaced.
Hole. A circular penetrating puncture through any part of the flatrack.
Pinhole. A small hole less than 1/8 in. (3.18 mm) in diameter. A pinhole typically results from a tiny
skip or porosity in a weld and usually is only detected during a light leak test.
Welder's Hammer. A hammer with a chisel shaped head used to tap on a welded joint and/or the surface
of a structural component to ascertain the strength and integrity.
Corrosive Failure. Corrosive failure (galvanic or electrolytic) is determined when the corroded metal can
be punctured by striking the area lightly with a welder's hammer.
Caulking. A sealant compound used to provide water tightness around patches in panels, around riveted
seams, in holes of pop rivets, in joints between dissimilar metals, in gaps between floor board edges and
in gaps where the floor boards adjoin the interior flatrack wall.
Undercoating. Bituminous material or other waterproof coating brushed or sprayed on the entire
underside of the container floor to protect all the metal understructure against corrosion and to
waterproof the wooden flooring.