Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-135 and -145 Series Airplanes

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This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain EMBRAER Model EMB-135 and -145 series airplanes. This proposal would require modification of the of the mid, aft, and forward upper liners in the baggage compartment. The modification would involve replacing the plastic lens protection grids on all upper liners with new, light metal lens protection grids. This action is necessary to prevent the plastic lens protection grids from breaking away and exposing the lens as a source of fire, which could lead to fire damage to the aircraft systems and structure, and expose the passengers and crew to hazardous quantities of smoke. This action is intended to address the identified unsafe condition.