I was recently looking at N42TE and I know that this is a Baron 58G but the aircraft type has changed from BE58 to BR58 as you can see here:
http://flightaware.com/live/flight/N42TE
Could anyone tell me why this happened. I have seen this aircraft and know it is a Baron 58G. Maybe FA has just changed how the type is listed.
Not sure?
Holton 
BR58 appears to simply be a typo by either the pilot or the FSS specialist who filed the flight plan. BR58 is not an aircraft type, according to the FAA aircraft type designator list.
As James said, probably a typo by the pilot/FSS/controller. E and R are right next to each other on most keyboards.
Gotcha Thanks. 
Was just wondering if something had changed.
Holton