 He also used a Junkers F 13, which was the first all-metal civil aviation craft, for sightseeing flights over Hamburg.He died of pneumonia on 21 February 1930 and was buried in Ohlsdorf Cemetery in Hamburg.The Luft Hansa later named one of its Junkers 52/3m transports HEINRICH KROLL (D-AHUS, W.Nr.4049) to honour him.