Action
Final rule.
Summary
We are adopting a new airworthiness directive (AD) for all Gulfstream Aerospace Corporation Model G-1159B airplanes. This AD was prompted by a review of airplane maintenance records, which revealed that incorrect rudder assemblies were installed on certain airplanes. This AD requires certain inspections, and replacement or modification of the rudder assembly if necessary. We are issuing this AD to address the unsafe condition on these products.