Careful 1979 N models (s/n 21062955 - 21063640) did not have the 160 knot 10 degree flap speed, 1980 models had the increase (s/n 21063641 and on).
From s/n 21063641 the differences are flap nose ribs, flap actuator and some minor change in the preselect bracket. New design flap position indicator also fitted.
Lefty 1979 210N's had the oldstyle door handles and the 1980 and on had the T handles.
Pretty sure that the 79 N also had a lower gear extension speed.
Later N models (82+) had different fuel systems, undercarriage lights etc.
Aircraft are different between years within the same model so you need the correct POH / Info manual for the year not model.
Last edited by edsbar; 15th May 2015 at 22:58.