Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (Embraer) Airplanes

We propose to adopt a new airworthiness directive (AD) for certain Empresa Brasileira de Aeronautica S.A. (Embraer) Model EMB-135 airplanes and Model EMB-145, -145ER, -145MR, -145LR, -145MP, and -145EP airplanes. This proposed AD was prompted by a report of chafing between the fuel pump electrical harness and the fuel pump tubing during scheduled maintenance. This proposed AD would require a detailed inspection for chafing on the electrical harness of each electrical fuel pump in the fuel tanks, replacing the affected electrical fuel pump with a new or serviceable pump if necessary, and installing clamps on the fuel pump electrical harnesses. We are proposing this AD to detect and correct chafing of the fuel pump harnesses with other parts inside the fuel tank, which could present a potential ignition source that could result in a fire or fuel tank explosion.