Summary
We are adopting a new airworthiness directive (AD) for certain Model DHC-8-102, -103, and -106 airplanes and Model DHC-8-200, -300, and -400 series airplanes. This AD was prompted by reports of cracking of the DHC-8 Series 100 rudder actuator mounting bracket. This AD requires modifying the mounting adapters of the power control unit (PCU). We are issuing this AD to prevent loss of both rudder PCU actuators which could result in free play of the rudder control surface and loss of controllability of the airplane.
Directive Details
AD Number
FAA-2011-1230
Document Number
2012-4494
Type
Rule
Publication Date
March 6, 2012
Effective Date
April 10, 2012
Affected Manufacturer
Bombardier, Inc.
Criticality
important
Emergency
No
Docket ID
Docket No. FAA-2011-1230
Topics
Official Documents
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