This course provides the flight and ground training necessary to add the Multi-Engine Flight Instructor Certificate to the Single Engine Flight Instructor Certificate. Includes 6 hours of multi-engine airplane time and 6 hours of ATD time. Students must have logged 15 hours multi-engine pilot-in-command time to take the FAA Practical Test. Lab 3. Prerequisite(s): Flight Instructor Single Engine Certificate and Commercial Pilot, Airplane Multi-Engine Certificate.