AD data, free
The library's text is the Federal Register's, a US government work. Take it: no key, no account. A link back to the library is appreciated.
JSON API
Base address https://api.aerscheduler.com/public/airworthiness-directives. GET only, cached for a few minutes, and limited to 3,000 requests per 5 minutes from one address. Dates are UTC days.
| /search?q=seat+rail&page=1 | Ranked search: an AD number or its start, or any words. 25 a page. |
| /ads/2011-10-09 | One AD in full: applicability and required actions as structured blocks, supersession, the pages it is filed on. |
| /recent?days=30 | Published in the last 30 days (up to 90), plus anything on public inspection now. |
| /pages/aircraft | Every page of a kind: aircraft, engine, propeller or appliance. |
| /pages/aircraft/cessna-172s | One page: its ADs, figures by year. |
| /pages/aircraft/cessna-172s.csv | The same as CSV. |
| /months/2026-09 | Every AD published in a month, with the FAA's summary. |
| /stats | Counts, the years covered, when the library last changed. |
CSV
Every aircraft, engine, propeller and equipment page has a CSV link: one row per AD, with the Federal Register link.
RSS
/airworthiness-directives/feed.xml lists the newest ADs, including those on public inspection, refreshed every 15 minutes.
What the fields mean
onPublicInspection: filed with the Federal Register and not yet published;publishedOnis the scheduled date.supersedesandsupersededBy: AD numbers, from the AD's own text.repetitive: the required actions mention doing something again. A reading aid, not a compliance answer.- Pages list an AD when its text names the model; a listing is not a determination that the AD applies.