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Wed, Sep 14, 2011

AD: Bombardier DHC-8-400

AD NUMBER 2011-18-17

MANUFACTURER: Bombardier, Inc. Model DHC-8-400 Series Airplanes
SUBJECT: AD Number 2011-18-17
ACTION: Final rule

SUMMARY: 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 reports have been received on failures of the main landing gear (MLG) stabilizer extension springs. A landing gear audit has confirmed that the MLG may not lock in the down-lock position with the absence of both MLG stabilizer extension springs. The loss of the locking mechanism could result in the collapse of the main landing gear.

We are issuing this AD to require actions to correct the unsafe condition on these products.

DATES: This AD becomes effective October 18, 2011

FMI: http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgAD.nsf/0/72F8FA7133AD4B958625790A004F06BC?OpenDocument

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