FAA Certification (STC ST01983WI) for the installation of the folding stair in the main entrance of the Embraer EMB135/145 aircraft.  The installation maintains the 'side hinged' jetway door and installs a folding stair and track system for stowage of the stair immediately aft of the existing jetway door for flight operations.

This Embraer EMB 135/145 folding stair can be easily deployed internally or externally by the flight crew and will give operators greatly increased operational flexibility by eliminating the requirement for added ground support needed for passenger loading and unloading.   

The installation of the folding stair can be accomplished in as little as three weeks with a very attractive price point, which will provide operators with an easily maintained modification requiring little maintenance.