P.R. Laws tit. 10, § 1784
The carrier, however, shall be liable for the losses and damages arising from the causes mentioned in the foregoing section if it is proved that they occurred on account of his negligence or because he did not take the precautions usually adopted by careful persons, unless the shipper committed fraud in the bill of lading, stating that the goods were of a class or quality different from what they really were.
If, notwithstanding the precaution referred to in this section, the goods transported run the risk of being lost on account of the nature or by reason of an unavoidable accident, without there being time for the owners of the same to dispose thereof, the carrier shall proceed to their sale, placing them for this purpose at the disposal of the judicial authority or of the officials determined by special provisions.
History —Commerce Code, 1932, § 280.