AD NUMBER: 2005-07-22
MANUFACTURER: Empresa Brasileira de Aeronautica S.A.
(EMBRAER) Model ERJ 170 series airplanes. SUBJECT: Airworthiness Directive 2005-07-22 SUMMARY: The FAA is adopting a new airworthiness
directive (AD) for all Empresa Brasileira de Aeronautica S.A.
(EMBRAER) Model ERJ 170 series airplanes. This AD requires revising
the Limitations section of the airplane flight manual to advise the
flight crew to make sure the correct instrument landing system
(ILS) identifier is included on the flight management system (FMS)
flight plan before the flight crew initiates an approach to landing
with the autopilot engaged. This AD is prompted by reports that the
airplane's autopilot may apply large-amplitude control inputs while
following ILS guidance to a runway that is not included on the FMS
flight plan. We are issuing this AD to prevent hazardous maneuvers
close to the ground, which could result in an impact with an
obstacle or terrain.