Airworthiness directives 12,278 on file, 1994 to today, from the Federal Register*1
What this is
Every airworthiness directive the FAA has published in the Federal Register since 1994, with the applicability, compliance and required-action sections pulled apart so you can read the part you need without scrolling through the whole rule.
Free to search, no account. It is the same catalogue TrackAD matches against your aircraft.
Looking them up one at a time?
That is the job TrackAD does. It matches the whole catalogue against the aircraft you look after — airframe, engine, propeller and appliances in one pass — records how each was complied with, and works out what falls due next. $5 a month, up to 50 aircraft.