AD 99-26-01

Airworthiness Directives; Fokker Model F27 Mark 050, 200, 500, and 600 Series Airplanes

Unsafe Condition: Horizontal and Vertical Stabilizer De-Icing System

Airworthiness Directives; Fokker Model F27 Mark 050 Series Airplanes

Unsafe Condition: Wing Skins

Airworthiness Directives; Fokker Model F27 Mark 050 Series Airplanes

Unsafe Condition: Inspect Vertical Flange Of Inboard Z-Stiffeners

Airworthiness Directives; Fokker Model F27 Mark 100, 200, 300, 400, 500, 600, and 700 series airplanes and Model F27 Mark 050 Series Airplanes

Unsafe Condition: AFM - Limitation Section - Ice Protection Sys.