55-21-20 Horizontal Stab Leading Edge, How it’s Made (Video) Brian Carpenter 10 years ago Advertisements Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook 55-21 Horizontal Stabilizer (LD)DateMarch 1, 2016Load Testing the EMG-6 Strut Fittings (Video)DateJanuary 14, 201855-22 Horizontal Stabilizer Trim (video)DateFebruary 20, 2016