Airworthiness Directive · Amendment 39-12045 · Airbus Model A300 B2 and B4 Series Airplanes, and Model A300 B4-600, A300 B4-600R, and A300 F4-600R (A300-600) Series Airplanes
Airbus Model A300 B2 and B4 Series Airplanes, and Model A300 B4-600, A300 B4-600R, and A300 F4-600R (A300-600) Series Airplanes
All Model A300 B2 and B4 series airplanes, and Model A300 B4-600, A300 B4-600R, and A300 F4-600R (A300-600) series airplanes; certificated in any category.
Note 1: This AD applies to each airplane identified in the preceding applicability provision, regardless of whether it has been modified, altered, or repaired in the area subject to the requirements of this AD. For airplanes that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must request approval for an alternative method of compliance in accordance with paragraph (b) of this AD. The request should include an assessment of the effect of the modification, alteration, or repair on the unsafe condition addressed by this AD; and, if the unsafe condition has not been eliminated, the request should include specific proposed actions to address it.
This amendment adopts a new airworthiness directive (AD), applicable to all Airbus Model A300 B2 and B4 series airplanes, and Model A300-600 series airplanes, that requires verifying the correct location of the labels of the hydraulic pipes supplying the strut unlocking actuator of the left-hand main landing gear (MLG), and of the pipes of the left- and right-hand cross brace; reidentifying the pipes; and replacing any incorrectly located label with a new label. The actions specified by this AD are intended to prevent cross connection of the hydraulic hoses or pipes that supply the main strut unlocking actuator, and collapse of the MLG under lateral taxiing loads. This action is intended to address the identified unsafe condition.
To prevent cross connection of the hydraulic hoses or pipes that supply the main strut unlocking actuator, which could lead to consequent collapse of the main landing gear (MLG) under lateral taxiing loads, accomplish the following:
(a) Within 1,000 flight hours or 3 months after the effective date of this AD, whichever occurs first: Verify the correct location of the labels of the hydraulic pipes supplying the strut unlocking actuator of the left-hand MLG, and of the pipes of the left- and right-hand cross brace, and reidentify the pipes, in accordance with Airbus Service Bulletin A300-32A0437 (for Model A300 series airplanes) or A300-32A6080 (for Model A300-600 series airplanes), both dated April 5, 2000, as applicable. If any label is located incorrectly, prior to further flight, replace the label with a new label in accordance with the applicable service bulletin.
Note 2: The service bulletins reference Airbus Service Bulletins A300-57A0234 and A300-57A6087, as well as Messier-Dowty International Service Bulletin No. 470-32-792, as additional sources of service information for accomplishment of the specified actions.
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.
