I haven't had any problems with it, but you may try increasng the empty_weight_roll_MOI by a 1000 if it seems to be a roll issue or/and decrease the nose wheel damping ratio from 2.30 to 0.9. These are found in the aircraft.cfg file.
The FS2002 SDK states that:
A damping ratio of 0.0 is considered undamped, meaning that the oscillations will continue with a constant magnitude. Negative values result in an unstable ground handling situation, and values greater than 1.0 might also cause instabilities by being “over” damped. Typical values range from 0.6 to 0.95.
[contact_points]
point.0=1.0, 7.91, 0.0, -4.73, 2252, 0.0, 0.54, 35.7, 0.07, 2.5, 2.30, 7.0, 7.0, 0.0, 0.0, 0.0
Those I stated above sometimes caused problems for me, but I do not have any problem with this particular aircraft, so it might be something else causing it.
Maybe too much wood construction in the plane (lol). That is not why of course, but I couldn't resist a little humor, getting a bit sim crazed I think.