Airworthiness directives, 1977
203 ADs took effect in 1977. 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)) = 1977 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)) = 1977 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 74-20-10Emergency Locator Transmitter · Leigh Systems Emergency Locator TransmitterAD 74-15-06Tail Rotor Gear Box · Sikorsky S-58A, S-58B, S-58BT and 12 moreAD 77-25-04Clevis Pins · Alexander Schleicher Rhonlerche IIAD 77-23-08Cracks in Main Rotor Blades · Schweizer 269A, 269A-1 and 269BAD 77-25-05Idle Mixture · Enstrom Helicopter Corporation, The 280C and F-28CAD 77-12-06HistoricalBlade Shank · Hartzell Propeller BHC-12YF-4, BHC-C2Y, BHC-G2YF-1 and 115 moreAD 77-13-21Prevent Landing Gear Collapse · Piper PA-24, PA-24-250, PA-24-260 and 3 moreAD 77-25-02Engine Fire Detection System · Sabreliner NA-265-70 and NA-265-80AD 77-23-05Wing or Empennage Assemblies · British Aerospace, Aircraft Group B.206 Series 1 and B.206 Series 2AD 77-23-04Total-Pressure Probes · Dassault Falcon 10AD 77-23-02Propeller Feathering System · BAE Systems HS 748 Series 2AAD 76-21-04High Pressure Compressor · General Electric CF6-6D and CF6-6D1AD 77-24-02Flap Support Structure · Short Brothers SC-7 Skyvan Series 3AD 77-23-11ELT Installation · Cessna 182, 182A, 182B and 16 moreAD 77-22-04Landing Gear · Airbus Helicopters SA341GAD 77-21-09Aileron Rudder Balance Interconnect Mechanism · Lockheed Martin 188A and 188CAD 76-20-03Seal Clearances · Pratt & Whitney Division JT9D-20, JT9D-3A, JT9D-7 and 4 moreAD 77-08-02Electrical Short · Piper PA-31, PA-31-300, PA-31-325 and 3 moreAD 77-23-03Rod End Bearings · Piper PA-28-140, PA-28-151, PA-28-161 and 12 moreAD 77-21-07Wiring · Airbus Helicopters Deutschland BO-105A and BO-105CAD 77-21-01Tail Rotor Gear Boxes · Scotts-Bell 47 47, 47B, 47B3 and 21 moreAD 77-21-05High Pressure Turbine Discs · Rolls-Royce Deutschland Dart 527, Dart 528-7E, Dart 528D-7E and 28 moreAD 77-22-05Operating Limitations · American Champion 7ECA, 7GC, 7GCA and 5 moreAD 77-20-06Wing Strut Corrosion · Pilatus PC-6, PC-6-H1, PC-6-H2 and 11 moreAD 77-22-02Nose Landing Gear Engine Mount · Alexandria 14-19-3, 14-19-3A, 17-30 and 1 moreAD 77-02-01Wing Skin And Spar Cracks · Boeing 707-300 Series, 707-300B Series, 707-300C Series and 1 moreAD 77-22-03Ring Segment - VHF Antenna · Lockheed Martin 1329-23A, 1329-23D, 1329-23E and 1 moreAD 77-21-06Fuselage Steel Tubing Cluster · Lavia Argentina PA-25, PA-25-235 and PA-25-260AD 77-21-03Rudder Spar Cracks · Piper PA-36-285AD 77-20-02Tail Rotor Spindle · Enstrom Helicopter Corporation, The 280, 280C, F-28 and 2 moreAD 76-17-08 R1HistoricalMain Rotor Shaft · Enstrom Helicopter Corporation, The 280, F-28 and F-28AAD 76-17-08HistoricalMain Rotor Shaft · Enstrom Helicopter Corporation, The 280, F-28 and F-28AAD 77-18-06Horizontal Stabilizer · Boeing 727-100 Series, 727-100C Series, 727-200 Series and 3 moreAD 77-19-07Control Column Assembly · Textron 18A, 18D, 18S (Army C-45C) and 27 moreAD 77-19-06Aileron Cables · Piper PA-31, PA-31-300, PA-31-325 and 1 moreAD 77-19-03Main Rotor Retention Straps · MD Helicopters 369DAD 77-15-12Power Turbine Coupling Nut · Rolls-Royce 250-B15A, 250-B15E, 250-B15G and 23 moreAD 77-19-05Flying Wire Terminals · Allied Ag Cat Productions G-164A, G-164B, G-164B-15T and 3 moreAD 77-18-07Elevator Drive System · Lockheed Martin L-1011-385-1, L-1011-385-1-14, L-1011-385-1-15 and 1 moreAD 74-23-06Operating Limitations · Boeing DC-8-11, DC-8-12, DC-8-21 and 24 moreAD 77-18-05Variable Authority Steering System · M7 Aerospace SA226-AT, SA226-T and SA226-TCAD 77-18-04Cabin Pressurization · Textron 200, 200T, A100 and 3 moreAD 75-24-09Ground Spoilers · Boeing 737-100 Series and 737-200 SeriesAD 77-16-10Navigation Systems · Mitchell Industries Navigation SystemsAD 77-16-07Main Rotor Gearbox · Airbus Helicopters Deutschland BO-105A and BO-105CAD 77-21-04Clutch and Shaft Assembly · MD Helicopters 369, 369A, 369D and 4 moreAD 77-18-01Engine Oil Cooler · Mooney M20E, M20F and M20JAD 77-16-12Low Turbine Shaft · Pratt & Whitney Division JT8D-1, JT8D-11, JT8D-15 and 8 moreAD 77-16-04Wing Structure · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 7 moreAD 77-16-02Pistons · Dowty Propellers (c) R.209/4-40-4.5, (c) R.245/4-40-4.5 and (c) R.259/4-40-4.5