Provide the data needed to document compliance with the applicable regulations covering the structural strength, crash protection, interiors item retention, basic loads, weight and balance, stress analysis, static test, dynamic test, fatigue analysis/assessment, and evaluation of the design to substantiate aircraft structure. While performing the duties of this job, the employee is occasionally required to stoop, kneel, crouch, or crawl; and frequently required to stand; walk, use hands to finger, handle, or feel; reach with hands and arms; and talk or hear.