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Tue, Mar 17, 2009

AD: Airbus

AD NUMBER: 2009-06-13
MANUFACTURER: Airbus
SUBJECT: Airworthiness Directive 2009-06-13
SUMMARY:
The FAA is adopting a new airworthiness directive (AD) for certain Airbus Model A321-131 airplanes. This AD requires repetitive ultrasonic inspections to detect cracks in the wing inner rear spars at the attachment holes of the Main Landing Gear (MLG) forward pintle fitting, the actuator cylinder anchorage fitting, and rib 5 fitting; and repair of the sealant or repair of any crack. This AD results from a finding that certain A321-131 airplanes may not reach the design life goal due to differences in thickness of the inner rear spars and that fatigue cracks may develop on inner rear spars starting from the fastener holes for the attachment of gear rib 5, the forward pintle fitting, and the actuating cylinder anchorage on these airplanes. We are issuing this AD to detect and correct such fatigue cracks, which could result in reduced structural integrity of the airplane.

FMI: www.faa.gov/regulations_policies/airworthiness_directives/

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