The stern frame, being a structural component, can exhibit a few defects during a dry-dock inspection. Minor damage might include cracks in the brackets that connect the propeller post and shoe piece or in the upper end of the rudder horn hanging from the stern. Major damage, often caused by grounding or impacts, includes fractures, bending, or twisting of the shoe piece. Surveyors also need to check for corrosion and deterioration of zinc anodes typically fitted to the stern frame and rudder, as they required in reducing galvanic corrosion.

The sea chest is prone to structural and functional defects due to its exposure to seawater. Typical issues include cracks in the welds of girders, floor plates, or around pipe ends, as well as corrosion and marine growth on the internal and external surfaces. Internal coatings may peel off, and sacrificial anodes might be worn out. Additional faults include fouling or choking of pipes and the deterioration of sea chest valves, often caused by pitting or corrosion.

The bilge keel, which helps reduce rolling, can develop cracks in welded joints or experience partial detachment. Other common faults include corrosion on the surface, dents in plates, or twisting and bending (kinks). Cracks at the ends of the bilge keel are also common due to stress concentration points.

Sacrificial anodes are inspected for wear or detachment. Worn-out anodes can no longer protect the ship's structure from galvanic corrosion, so replacements may be necessary. Detached anodes compromise the ship's cathodic protection system.

The rudder is inspected for cracks or dents in the side or top plates, which could lead to water ingress. Issues with pintles, such as fractures, corrosion, wear of sleeved bushes, or damage to threads, are also common. Inspectors look for loose portable boxes installed above or below the gudgeon (if applicable). Corrosion, paint fouling, and surface roughness on the rudder plates must be addressed, and any twisting or bending of the rudder stock is evaluated for necessary repairs.