FAA 2018-23-16

Requires inspecting the pitot static tubes for chafing damage, replacing tubing as necessary, installing an additional clamp for pitot static tube support, protecting plumbing with spiral wrap, and ensuring proper clearance between the pitot tubes and the primary support at the flame arrester intersection. Prompted by a production inspection of installed pitot static plumbing that identified insufficient clearance between the pitot tubes and the primary support at the flame arrestor intersection.