L2 Consulting Services won a FAA supplemental type certificate (STC) for installation of the Honeywell Runway Awareness and Advisory System (RAAS) on B757 series aircraft. L2 Consulting, Dripping Springs, Texas, said the safety system aims to reduce the number of aircraft accidents on airport surfaces. L2 said it is the only company to hold a STC for the Honeywell RAAS installation on the 757 and 767 aircraft types. The Honeywell system provides improved situational awareness through aural advisories for flight crew. The RAAS is a software upgrade hosted in the Honeywell Enhanced Ground Proximity Warning System. The system uses a GPS coupled with an internal airport runway database to monitor the airplane’s location and provide voice advisories. More