Summary
The FAA proposes to adopt a new airworthiness directive (AD) for certain EMBRAER Model ERJ 170 airplanes. This proposed AD would require replacement of certain electrical bonding clamps and attaching hardware with new or serviceable parts, as applicable, and other specified action. This proposed AD results from failure of an electrical bonding clamp, used to attach the electrical bonding straps to the fuel system lines. We are proposing this AD to prevent loss of bonding protection in the interior of the fuel tanks or adjacent areas that, in combination with lightning strike, could result in a fuel tank explosion and consequent loss of the airplane.