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Thu, Dec 22, 2011

AD: Bombardier Dash-8

AD NUMBER: 2011-26-05

MANUFACTURER: Bombardier Model DHC-8-300 series airplanes
SUBJECT: Airworthiness Directive 2011-26-05
ACTION: Final Rule

SUMMARY: The FAA is superseding an existing airworthiness directive (AD) that applies to certain Bombardier, Inc. Model DHC-8-300 series airplanes.

This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product.

The MCAI describes the unsafe condition as:

Several cases of aileron terminal quadrant support brackets that were manufactured using sheet metal have been found cracked on DHC-8 Series 300 aircraft. Investigation revealed that the failure of the support bracket was due to fatigue. Failure of the aileron terminal quadrant support bracket could result in an adverse reduction of aircraft roll control.

These conditions could result in loss of control of the airplane.

DATES: This AD becomes effective January 23, 2012.

FMI: AD

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