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 77-12-03Engine Mount Stay Strut · de Havilland Aircraft Co., Ltd., The D.H.114 Heron Series 2A, D.H.114 Heron Series 2DA and D.H.114 Heron Series 2XAD 77-09-08Bleed Valve Diaphragm · Rolls-Royce 250-B17, 250-B17B, 250-C20 and 2 moreAD 77-11-03Textron 278AD 77-14-01Main Rotor Flaps · Agusta A109AAD 77-14-07HistoricalBlank Shank · Hartzell Propeller EHC-A3VF with STC SA1685WEAD 77-08-06Engine Oil · Mooney M20E, M20F and M20JAD 77-13-14Drag Brace Fittings · de Havilland Aircraft Co., Ltd., The D.H.114 Heron Series 2A, D.H.114 Heron Series 2DA and D.H.114 Heron Series 2XAD 77-13-13Loss of Rudder Feel Capability · Airbus BAC 1-11 200 Series and BAC 1-11 400 SeriesAD 75-14-04Rudder Cables · Allied Ag Cat Productions G-164, G-164A, G-164B and 4 moreAD 77-13-17Actuating Pins · McCauley Propeller Systems 2A34C, 2AF34C55, 3AF32C75 and 9 moreAD 77-13-16Carburetors · Commander 112TC, 112TCA and CarburetorsAD 77-13-08Right and Left Truss Assemblies · Textron 58P, 58PA, 58TC and 1 moreAD 77-13-07Aileron Control System · Textron 200AD 76-10-01Tail Boom · Bell Helicopter Textron 205A and 205A-1AD 77-13-05Missing Rivets In Bulkhead · Bombardier CL-215-1A10, CL-215-6B11 (CL-215T Variant) and CL-215-6B11 (CL-415 Variant)AD 77-13-04Placard-Brake Warning · Allied Ag Cat Productions G-164A, G-164B, G-164B-15T and 3 moreAD 77-12-08External Electrical Ground Power Receptacle · Cessna 172M, 172N, 177B and 19 moreAD 76-24-01Eighth Stage Compressor Disk · Pratt & Whitney Division JT8D-1, JT8D-11, JT8D-1A and 6 moreAD 77-12-07Fuel Valve Actuator Assembly · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 moreAD 77-07-05 R1HistoricalControl Rotor Blade Spar Tube and Cuff · Hiller UH-12, UH-12A, UH-12B and 3 moreAD 77-07-05HistoricalControl Rotor Blade Spar Tube and Cuff · Hiller UH-12, UH-12A, UH-12B and 3 moreAD 76-20-08Main Landing Gear · Lockheed Martin L-1011-385-1, L-1011-385-1-14, L-1011-385-1-15 and 1 moreAD 77-10-03Fire Resistant Prop Feathering System · Lockheed 18AD 77-10-02Fire Resistant Prop Feathering System · Boeing DC3-G102, DC3-G102A, DC3-G103A and 11 moreAD 77-10-01Fire Resistant Prop Feathering System · Boeing C54-DC, C54A-DC, C54B-DC and 4 moreAD 77-11-02Main Rotor · Airbus Helicopters Deutschland BO-105A, BO-105C and BO-105SAD 77-12-02Elevator Balance Weights · Piper PA-31 and PA-31-300 with STC SA986SWAD 77-12-01Fuel System · Piper PA-28-235, PA-32-260, PA-32-300 and 1 moreAD 76-22-02'Y' Type Shoulder Harness · Textron 200, 58, 58A and 14 moreAD 77-10-14Main Landing Gear Actuator · Bombardier CL-215-1A10AD 77-10-12Crank Arm Assembly · Boeing DC-8-11, DC-8-12, DC-8-21 and 24 moreAD 77-10-11Landing Gear Lug · Kelowna Flightcraft R & D 240 Series, 340 and 440 with STC SA1054WE or 2 othersAD 77-08-04Engine Mount Fittings · Textron 58P, 58PA, 58TC and 1 moreAD 77-10-10Electrical System · Sabreliner NA-265-80AD 75-13-01Main Rotor Assembly · Sikorsky S-58A, S-58B, S-58BT and 12 moreAD 77-09-07Hub Driving Center · Dowty Propellers (c) R175/4-30-4/ and (c) R212/4-30-4/AD 77-10-07Engine-to-Transmission Assembly · Bell Helicopter Textron 205A-1AD 77-10-09Vibration Effects · Piper PA-31-325AD 77-10-06Tail Rotor Drive Shaft · Bell Helicopter Textron Canada 206A and 206BAD 77-09-10Electric Trim Switch · Piper PA-23-250, PA-23-250 (Navy UO-1), PA-24-260 and 6 moreAD 77-09-06Lower Rudder Bearing · Bombardier CL-215-1A10AD 77-09-05Nose Landing Gear · Bombardier CL-215-1A10AD 77-09-04Main Landing Gear Wheel Well · Bombardier CL-215-1A10AD 77-09-02Windshield Inspection and Repair · Cessna 421B and 421CAD 77-08-07External Load Release · Airbus Helicopters Deutschland BO-105A and BO-105CAD 77-09-01Emergency Float Assemblies · MD Helicopters 369HAD 77-08-05Single Engine Takeoffs · Cessna 337, 337A, 337B and 15 moreAD 77-08-03Static System · True Flight Holdings AA-5A and AA-5BAD 77-08-01Aileron Spar Cracks · Piper PA-24, PA-24-250, PA-24-260 and 3 moreAD 77-07-10Aileron Mass Balance Support Arm · B-N Group BN-2A, BN-2A-2, BN-2A-20 and 10 more