Airworthiness directives, 1957
6 ADs took effect in 1957. Every AD since 1946 has a page with its text, status and the registered aircraft it may apply to.
Query with SQL
duckdb -csv -c "SELECT d.ad_number, d.status, d.subject, d.makes, d.models, d.effective_date FROM 'https://openairdocs.org/data/latest/faa_directive.parquet' d WHERE year(coalesce(d.effective_date, d.publication_date, d.issue_date)) = 1957 ORDER BY coalesce(d.effective_date, d.publication_date, d.issue_date) DESC, d.ad_number DESC"
Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
SELECT d.ad_number, d.status, d.subject, d.makes, d.models, d.effective_date FROM 'https://openairdocs.org/data/latest/faa_directive.parquet' d WHERE year(coalesce(d.effective_date, d.publication_date, d.issue_date)) = 1957 ORDER BY coalesce(d.effective_date, d.publication_date, d.issue_date) DESC, d.ad_number DESC
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
Earlier years
AD 57-10-02Oil Pressure Gage Line · Piper PA-23AD 57-05-03Elevator Push-Pull Tube · Piper PA-23AD 57-01-02Stabilizer Attachment Bolts · Piper PA-23AD 56-27-03Aileron Balance Weight Bracket · Piper PA-23AD 56-26-03HistoricalCrankshaft · Pratt & Whitney Division Military R-985 Series, Wasp Jr. A, Wasp Jr. B-4 and 10 moreAD 57-02-01Rudder horn attachment · Univair 415-C, 415-CD, 415-D and 3 more