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.

Earlier years
AD 77-07-09Tailpipes · Dassault Falcon 10Effective Apr 18, 1977AD 77-07-11Fourth Stage Turbine Stator And Rotor · Pratt & Whitney Division JT8D-9 and JT8D-9AEffective Apr 15, 1977AD 66-30-04Firewall Support Tube Bracket · Maryland Air Industries F-27, F-27A, F-27B and 9 moreEffective Apr 13, 1977AD 77-07-06Rudder Control Cable · Textron C90 and E90Effective Apr 11, 1977AD 77-07-04Carburetor Heat Valve Assembly · True Flight Holdings AA-5 and AA-5AEffective Apr 11, 1977AD 74-17-04Fabric Reinforcement · FS 2002 PA-14, PA-12, PA-12S and 18 moreEffective Apr 11, 1977AD 77-07-02Horizontal Stabilizer · Dassault Fan Jet FalconEffective Apr 7, 1977AD 77-07-03Electrical Terminals · Piper PA-31, PA-31-325 and PA-31-350Effective Apr 4, 1977AD 77-07-01Clutch Actuator · Schweizer 269A, 269A-1, 269B and 1 moreEffective Apr 4, 1977AD 75-06-01Gearbox Deterioration · Pratt & Whitney Canada PT6A-20, PT6A-20A, PT6A-20B and 11 moreEffective Apr 1, 1977AD 77-06-05Fire Hazard in Oxygen System · Cessna 340AEffective Mar 31, 1977AD 77-06-04Tail Rotor Assembly · Enstrom Helicopter Corporation, The 280C, F-28C, 280C and 1 moreEffective Mar 31, 1977AD 77-06-01Instrument Conditions · Mooney M20JEffective Mar 18, 1977AD 74-03-03Main Landing Gears · Israel Aircraft Industries 1121 and 1123Effective Mar 17, 1977AD 77-03-05Main Landing Gear · Textron 19A, 23, A23 and 8 moreEffective Mar 14, 1977AD 77-05-04Crankshaft · Continental Motors IO-470-L, IO-520-D, IO-520-F and 6 moreEffective Mar 11, 1977AD 77-05-02Main Rotor Blades · Bell Helicopter Textron 212Effective Mar 10, 1977AD 77-05-03Tail Rotor Control System · MD Helicopters 369DEffective Mar 7, 1977AD 77-02-04Wing Tip Strobe Lights · Textron 100, 58, 58A and 13 moreEffective Mar 3, 1977AD 72-09-01Engine Mount Pylon · Boeing DC-9-11, DC-9-12, DC-9-13 and 19 moreEffective Mar 3, 1977AD 76-26-02Cargo Doors · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 6 moreEffective Mar 2, 1977AD 77-04-08Spar Brackets · M7 Aerospace SA26-AT and SA26-TEffective Mar 1, 1977AD 77-04-05Carburetor Air Intake · Cessna 180, 180A, 180B and 39 moreEffective Mar 1, 1977AD 77-02-07Propeller Feathering · Textron 200Effective Mar 1, 1977AD 77-03-06Compressor Front Hubs · Pratt & Whitney Division JT8D-1, JT8D-1A, JT8D-1B and 3 moreEffective Feb 25, 1977AD 74-20-09Main Rotor Blades · Sikorsky S-61A, S-61L, S-61N and 2 moreEffective Feb 25, 1977AD 75-05-06Fuel Manifold Leakage · Pratt & Whitney Division JT8D-1, JT8D-11, JT8D-15 and 18 moreEffective Feb 24, 1977AD 77-02-02Static Port Fittings · Boeing 727-100 Series and 727-200 SeriesEffective Feb 22, 1977AD 77-04-02Directional Control · Piper PA-36-285Effective Feb 21, 1977AD 74-10-09Upper Wing Surface · Boeing 707-100 Long Body, 707-100B Long Body, 707-100B Short Body and 1 moreEffective Feb 21, 1977AD 76-18-11Aft Cargo Door · Boeing 727-100 Series and 727-100C SeriesEffective Feb 18, 1977AD 77-03-01Left and Right Wing Rivets · Twin Commander 690, 690A and 690BEffective Feb 16, 1977AD 77-04-01Trim System · Twin Commander 690AEffective Feb 14, 1977AD 77-03-04Fuselage Splice Fitting · Bell Helicopter Textron 214B and 214B-1Effective Feb 14, 1977AD 77-03-03Aircraft Data Plate · Piper PA-31Effective Feb 9, 1977AD 77-02-03Stage 4 Turbine Buckets · General Electric CT64-820-4Effective Feb 9, 1977AD 77-02-10Fuselage Bonding Strips · Bombardier CL-44D4 and CL-44JEffective Feb 4, 1977AD 77-02-09Wing Flap System · Cessna 150, 150A, 150B and 61 moreEffective Feb 3, 1977AD 77-02-08Batteries · Narco Emergency Locator Transmitter BatteriesEffective Feb 1, 1977AD 74-08-07Landing Gear System · Boeing DC-10-10, DC-10-10F, DC-10-30 and 2 moreEffective Feb 1, 1977AD 77-02-06Wing Attachment Fittings · Piper PA-36-285Effective Jan 28, 1977AD 76-04-01Main Gear Extension · Cessna 210, 210A, 210B and 2 moreEffective Jan 27, 1977AD 76-25-05Aileron Control · Textron 19A, 23, A23 and 9 moreEffective Jan 24, 1977AD 77-01-06Horizontal Stabilizer · Piper PA-31, PA-31-325 and PA-31-350Effective Jan 19, 1977AD 77-01-08Engine Failure · Commander 112Effective Jan 14, 1977AD 77-01-03Carburetor Air Filter Boxes · Piper PA-28-151Effective Jan 14, 1977AD 77-01-05Strobe NAV Light Wire · Piper PA-23-250 and PA-23-250 (Navy UO-1)Effective Jan 13, 1977AD 73-23-01Piston Pin Assembly · Lycoming Engines AIO-360-A1A, AIO-360-A1B, AIO-360-A2A and 215 moreEffective Jan 13, 1977AD 77-01-01Fuel Quantity Gauge · Piper PA-28-140, PA-28-150, PA-28-151 and 7 moreEffective Jan 7, 1977AD 76-26-05Rotor Brake · Airbus Helicopters Deutschland BO-105A and BO-105CEffective Jan 6, 1977