AD NUMBER: 2005-03-14 MANUFACTURER: Airbus SUBJECT: Airworthiness Directive 2005-03-14 SUMMARY: This amendment supersedes an existing
airworthiness directive (AD) that applies to all Airbus Model A300
B2 and B4 series airplanes. The existing AD currently requires
determining the part and amendment number of the variable lever arm
(VLA) of the rudder control system to verify the parts were
installed using the correct standard, and corrective actions if
necessary. For certain VLAs, this new AD requires repetitive
inspections of the VLA and corrective action if necessary.
This new AD also provides a terminating action for the
repetitive inspections. Furthermore, this new AD reduces the
applicability of affected airplanes. The actions specified by this
AD are intended to prevent failure of both spring boxes of certain
VLAs due to corrosion damage, which could result in loss of rudder
control and consequent reduced controllability of the airplane.
This action is intended to address the identified unsafe