Summary
We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed AD would require removing certain "machined-from-billet'' Volare LLC (formerly Precision Airmotive Corporation, formerly Facet Aerospace Products Company, formerly Marvel-Schebler (BorgWarner)) HA-6 carburetors, inspecting for a loose mixture control sleeve or for a sleeve that may become loose, repairing the carburetor, or replacing the carburetor with one eligible for installation. This proposed AD was prompted by a report of a "machined-from-billet'' HA-6 carburetor having a loose mixture control sleeve that rotated in the carburetor body causing restriction of fuel and power loss. We are proposing this AD to prevent engine in-flight shutdown, power loss, and reduced control of the airplane.