Why FAA Letters to Airmen Matter - PilotWorkshops
Bruce: “Letters to Airmen (LTAs) are cousins of NOTAMs. The FAA publishes Letters to Airmen to inform pilots about local ATC procedures, discuss potential conflicts in busy airspace, and to highlight other safety-of-flight issues. Until recently, you could find LTAs only by searching for NOTAMs...
pilotworkshop.com
If you thought the NOTAM System was bad, here's another way to miss useful (or not) information. Can't wait till the name is changed to Letters to Air Missions. Can't have Airmen in any FAA Document.