Airworthiness Directive · Amendment 39-11937 · British Aerospace BAe Model ATP Airplanes
British Aerospace BAe Model ATP Airplanes
All BAe Model ATP 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 British Aerospace BAe Model ATP airplanes. This action requires repetitive inspections to detect damage of the torque link apex joint of the left-and right-hand main landing gear (MLG); and replacement of nuts, pins, and bolts with new parts, if necessary. This action is necessary to prevent separation of the top and bottom torque links, and consequent loss of directional control of the MLG. This action is intended to address the identified unsafe condition.
To prevent separation of the top and bottom torque links, and consequent loss of directional control of the main landing gear (MLG), accomplish the following:
(a) Within 800 landings or 4 months after the effective date of this AD, whichever occurs first: Perform an inspection to detect damage of the torque link apex joint of the left- and right-hand MLG, in accordance with British Aerospace Service Bulletin ATP-32-99, dated February 21, 2000, and Messier-Dowty Service Bulletin 200-32-263, including Appendix A, dated February 1, 2000. If any damage exceeds the limit specified in the Messier-Dowty service bulletin, prior to further flight, replace the nut, bolt, and pin with new parts, as applicable, in accordance with that service bulletin. Repeat the inspection thereafter at intervals not to exceed 1,000 landings.
