Originally Posted by platbrownguy

Thanks. Everything ended up fine, flight was ~30 minutes late but nbd. Currently on JFK-SFO with a delightful J crew.

Nobody seemed any the wiser that the (Republic) DCA-JFK flight number started with a 9. Nothing was said. I always thought flight numbers like 9xxx were used only to reposition planes or when an aircraft flies to pick up stranded pax whose first plane has gone mech, and so forth. I guess this was just a glorified equipment swap. Eh, whatever.