MANUFACTURER: Empresa SUBJECT: Airworthiness Directive 2004-13-12 SUMMARY: This amendment adopts a new airworthiness
directive (AD), applicable to all EMBRAER Model EMB-120 series
airplanes, that requires revising the Airplane Flight Manual to
ensure that the propeller synchronizer switch is ''OFF'' after
engine start and before takeoff and landing. This action is
necessary to prevent a possible loss of airplane control and
subsequent injury to the flight crew and passengers. This action is
intended to address the identified unsafe condition.