Summary
This document proposes the adoption of a new airworthiness directive (AD) that is applicable to all BAE Systems (Operations) Limited (Jetstream) Model 4101 airplanes. This proposal would require repetitive inspections for damage of the horizontal and vertical stabilizer attachment fittings, and corrective action if necessary. This action is necessary to detect and correct damage of the horizontal and vertical stabilizer attachment fittings, which could result in reduced structural integrity of the horizontal and vertical stabilizers and consequent reduced controllability of the airplane. This action is intended to address the identified unsafe condition.