Airworthiness Directive · Amendment 39-13157 · Airbus Model A330 and A340 Series Airplanes
Airbus Model A330 and A340 Series Airplanes
The airplanes specified in Table 1 of this AD, certificated in any category. Table 1 is as follows: Table 1.--Applicability Model-- Which have received-- Excluding airplanes-- A330 series airplanes................ Airbus Modification Modified in production per Airbus Modification 45326 in production. 47619, or modified in service per Airbus Service Bulletin A330-57-3067, Revision 03, dated August 7, 2002. A340 series airplanes................ Airbus Modification Modified in production per Airbus Modification 45326 in production. 47619, or modified in service per Airbus Service Bulletin A340-57-4075, Revision 02, dated August 7, 2002.
This amendment adopts a new airworthiness directive (AD), applicable to certain Airbus Model A330 and A340 series airplanes, that requires, among other actions, modifying the down drive brackets of the left- and right-hand sides of the inboard flap track 1 assembly and installation of bigger bolts and washers, and testing the torque value of the nuts. The actions specified by this AD are intended to prevent failure of the bolts due to flexural loads caused by transmission jam loading, which could lead to a "flap-locked" condition, causing reduced controllability of the airplane. This action is intended to address the identified unsafe condition.
