Starting with aircraft manufactured in 2004, Cessna incorporated a new design with the navigation light located separately inside a clear housing on the leading edge of the wingtip. (This drawing depicts 2004~2007 172R S/N 17281201 ~ 17281496 and 2004~2007 172S S/N 172S9569 ~ 172S10655)
Own work
Er-Jin Jang