L S M.
Whilst there may have been PE correction problems with the leveloff/acceleration, how come the simple expedient of "helping" the trim with a manual input also solved the problem?
I only flew the 146 and not the RJ, for 9 years and this technique never failed.
I can't recall if the 'frame had a THS, or was trim applied to the infamous tabs on the elevator, with all the slack accumulating over time making this phenomenon more likely?
Otherwise a great little over-engineered craft which was/maybe still is a pilots' aeroplane.
