Update: The President has formally acknowledged AMT Day: https://www.whitehouse.gov/briefings-statements/presidential-message-aviation-maintenance-technician-day/
Aviation leaders sent a letter to the president earlier this week, seeking formal recognition of May 24 as Aviation Maintenance Technician Day. The day is already officially recognized by nearly all 50 United States, Commonwealths and Territories, United States Congress, and United States Senate.
The letter, initiated by the Aircraft Mechanics Fraternal Association and the Aerospace Maintenance Council, requests that "the White House honor a true American hero that was almost forgotten by history, and recognize the importance of the contributions made by Charles E. Taylor and the men and women who have followed in his footsteps by celebrating Aviation Maintenance Technician Day on May 24 of this year and each year following."
In addition to PAMA, AMFA and AMC, the letter was signed by--
Aeronautical Repair Station Association
Aircraft Electronics Association
Aircraft Owners & Pilots Association
Airlines for America
Aviation Mechanics Coalition
Aviation Technician Education Council
Helicopter Association International
National Air Carrier Association
National Air Transportation Association
Regional Airline Association