 A long winter prevented the resumption of the St. Petersburg–Stettin route until May 1850.She operated on the route without incident until 1862, when the Prussian Eastern Railway had reached St. Petersburg; the rail line was much faster than "Preussischer Adler", rendering the maritime route superfluous and bringing her career as a postal steamer to an end.She once again passed into service with the Prussian Navy, which was at that time searching for vessels to strengthen its fleet.