Airworthiness Directive · Amendment 39-14818 · Airbus Model A300 Airplanes, Equipped With General Electric CF6-50 Series Engines
Airbus Model A300 Airplanes, Equipped With General Electric CF6-50 Series Engines
This AD applies to Airbus Model A300 airplanes, certificated in any category; equipped with General Electric CF6-50 series engines.
The FAA is adopting a new airworthiness directive (AD) for certain Airbus Model A300 airplanes. This AD requires modifying the airplane and the engine/nacelle to install a third line of defense against inadvertent deployment of the thrust reverser in flight. This AD also requires two other actions that must be accomplished before or concurrently with the modification: installing a structural change in the fan cowl to avoid interference; and installing a dedicated, shielded electrical circuit. This AD results from a report that the manufacturer has developed a third line of defense against the inadvertent deployment of the thrust reverser of Model A300 airplanes that are equipped with General Electric CF6-50 series engines (in accordance with FAA guidelines). We are issuing this AD to prevent inadvertent deployment of the thrust reverser in flight, which could result in reduced controllability of the airplane.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
Within 48 months after the effective date of this AD, modify the airplane and the engine/nacelle to install a third line of defense against inadvertent deployment of the thrust reverser in flight, in accordance with the Accomplishment Instructions of Airbus Service Bulletin A300-78-0022, dated September 27, 2005.
Prior to or concurrently with the modification required by paragraph (f) of this AD, do the installations specified in Table 1 of this AD in accordance with the Accomplishment Instructions of the service bulletins listed in Table 1 of this AD.
| Action | Airbus service bulletin |
|---|---|
| (1) Install a structural change in the fan cowl to avoid interference between the third line of defense hardware installed on the thrust reverser and the fan cowl | A300-54-0098, dated September 27, 2005. |
| (2) Install a dedicated, shielded electrical circuit, segregated from the current thrust reverser control system | A300-78-0021, dated September 27, 2005. |
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
