Federal Aviation Administration April 7, 2009 – Federal Register Recent Federal Regulation Documents

We propose to adopt a new airworthiness directive (AD) for certain Boeing Model 767-200, -300, -300F, and -400ER series airplanes. This proposed AD would require an inspection to determine if certain motor operated valve actuators for the fuel tanks are installed, and related investigative and corrective actions if necessary. This proposed AD results from fuel system reviews conducted by the manufacturer. We are proposing this AD to prevent an ignition source inside the fuel tanks, which, in combination with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of the airplane.

We propose to adopt a new airworthiness directive (AD) for certain Boeing Model 737-600, -700, -700C, -800, -900 and -900ER series airplanes. This proposed AD would require modifying the fluid drain path in the wing leading edge area, forward of the wing front spar and doing all applicable related investigative and corrective actions. This proposed AD results from a report received of leaking fuel from the wing leading edge area at the inboard end of the number 5 leading edge slat. We are proposing this AD to prevent flammable fluids from accumulating in the wing leading edge and draining inboard and onto the engine exhaust nozzle, which could result in a fire.