Aircraft Equipment Problem Critical; Ground Event / Encounter Other / Unknown
General Evacuated
Aircraft; Incorrect / Not Installed / Unavailable Part
We were dispatched to an airplane having an Amber Alert on runway. The aircraft brakes locked up for an unknown reason causing the Aircraft to come to a complete stop at the 6000 ft. marker on the active runway. Upon arrival the passengers were helping each other down from the door 1L on the aircraft. The city dispatched air stairs that are incompatible with the ERJ145. The fire department eventually had a medium A frame ladder that was shorter than the door to access door 1L. There were passengers carrying bags as they crossed the open field between the runway and taxiway foxtrot where the busses were staged for the passengers. The major concern was that the passengers did not have a safe way to exit the aircraft and not causing possible injury and harm to the passengers. It is a known fact that all driving air stairs are too high to access ERJ145 doors. Having passengers jump down 5 ft. or more because that is not proper evacuation stairs or a process in place. The Amber Alert System has flaws. Not recognizing that the ERJ145 has unique requirements for emergency evacuations. Created by the non-standard height of the door compared to most all other mainline aircraft of those that have their own doors self-contained like the RJ200/700. The ERJ145 has no self-contained stairs or safety slide for passengers to access in the event of an emergency like happened today when the brakes locked up and sparked and caught fire.
A ramp agent reported the ERJ145 does not have air stairs nor a safe way to deplane while on the ramp and away from a jet bridge.