There are no CRJ's in Pinnacle's fleet that end in either 14E or 24E.
The "4E" part is perfectly clear. However. the trailing edge of the wing is just ahead of that and only the bottom RH
corner of the preceding digit is visible and I can't think what digit it could be other than a 1 or 2.
The airfleets site was no help as it does not include regional jets.
I guess I'll upload the photo, and if it's accepted I'll hope that the registration will be found later. If it's rejected The registration won't matter.