Airworthiness Directive · Amendment 39-9483 · Airbus Model A330 and A340 Series Airplanes
Airbus Model A330 and A340 Series Airplanes
Model A330 series airplanes having manufacturer's serial number (MSN) 030, 037, 045, 054, 055, 059, 060, 062, or 070; and Model A340 series airplanes having MSN 005 through 009 inclusive, 011, 013 through 016 inclusive, 018 through 029 inclusive, 031, 032, 033, 035, 036, 038, 039, 040, 043, 046 through 049 inclusive, 051, 052, 053, 057, 058, 063, 074, 076, or 082; certificated in any category.
This amendment adopts a new airworthiness directive (AD), applicable to certain Airbus Model A330 and A340 series airplanes. This action requires a one-time inspection to verify that the attachment screws at a pressure switch located on the trim tank fuel transfer line are properly torqued, and that lockwires are installed. This amendment is prompted by reports of loose screws and missing lockwires at this attachment. The actions specified in this AD are intended to prevent loose or missing screws, which could allow fuel to leak from the pressure switch connection; if a leak were to occur during flight with a full trim tank, there would be no warning indication to the flight crew, and the airplane may not have enough fuel to complete the flight safely.
