Code of Federal Regulations Title 46. Shipping § 46.137.330 Scope of the drydock examination

(1) Examine the exterior of the hull, including bottom, sides, headlog, and stern, and examine all appendages for damage, fractures, wastage, pitting, or improper repairs;

(2) Examine each tail shaft for bends, cracks, and damage, including the sleeves or other bearing contact surfaces on the tail shaft for wear. The tail shaft need not be removed for examination if these items can otherwise be properly evaluated;

(3) Examine the rudders for damage, the upper and lower bearings for wear, and the rudder stock for damage or wear. Rudders need not be removed for examination if these items can be otherwise properly evaluated. This also includes other underwater components of steering and propulsion mechanisms;

(4) Examine the propellers for cracks and damage;

(5) Examine the exterior components of the machinery cooling system for leaks, damage, or deterioration;

(6) Open and examine all sea chests, through-hull fittings, and strainers for damage, deterioration, or fouling;  and

(7) On wooden vessels, pull fastenings as required for examination.