Airworthiness directives, 1975

248 ADs took effect in 1975. 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)) = 1975
  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 75-07-06Second Stage Turbine Blades · Rolls-Royce 501-D22AEffective Apr 7, 1975AD 75-05-01Control Cable Pulleys · Boeing 707-100 Long Body, 707-100B Long Body, 707-100B Short Body and 34 moreEffective Apr 7, 1975AD 75-08-05Battery Disconnect · Twin Commander 690AEffective Apr 5, 1975AD 75-08-03Fuel Drain Valves · Piper PA-28-140, PA-28-150, PA-28-151 and 6 moreEffective Apr 4, 1975AD 74-21-04Canopy Slats · Schweizer 269A, 269A-1, 269B and 1 moreEffective Apr 4, 1975AD 75-06-02Cargo Carriers · MD Helicopters 369HE, 369HM and 369HS with STC SH129WE or SH133WEEffective Mar 28, 1975AD 74-07-03Blade Bearings. · Dowty Propellers (c) R.209/4-40-4.5, (c) R.245/4-40-4.5 and (c) R.259/4-40-4.5Effective Mar 27, 1975AD 75-07-02Air Filter Seal · Cessna F177RG, 177, 177A and 2 moreEffective Mar 26, 1975AD 75-05-05Wheel Assemblies · Boeing DC-10-30, DC-10-30F (KC-10A, KDC-10), DC-10-40 and 2 moreEffective Mar 26, 1975AD 75-05-10Slide Latch Cable Failure · Boeing 727-100 Series and 727-200 SeriesEffective Mar 25, 1975AD 75-05-11Edge Flaps Warning · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 moreEffective Mar 24, 1975AD 75-05-09Engine Fuel Shutoff And Crossfeed Valve Wire Bundles · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 6 moreEffective Mar 24, 1975AD 75-06-09Elevator Inboard Hinge Supports · Textron 60 and A60Effective Mar 20, 1975AD 75-04-09Landing Gear Actuator · Mooney M20C, M20E and M20FEffective Mar 20, 1975AD 75-06-08Battery Switch Ground Leads · Gulfstream Aerospace G-1159Effective Mar 18, 1975AD 75-06-04Forward Rudder Control Cable · Piper PA-31-350Effective Mar 13, 1975AD 73-08-01Aft Transmission Quill Shaft · Columbia Helicopters 107-IIEffective Mar 11, 1975AD 75-04-08'B' Hydraulic System Electrical Wiring · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 6 moreEffective Mar 10, 1975AD 75-04-06Flight Instruments · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 moreEffective Mar 10, 1975AD 75-08-12Actuator and Cover · Schweizer 269A, 269A-1, 269B and 1 moreEffective Mar 7, 1975AD 75-05-14Altitude Reporting Altimeters · Kollsman AltimetersEffective Mar 6, 1975AD 74-23-04Rib Flanges · American Champion 8KCABEffective Mar 6, 1975AD 75-03-07Passenger Evacuation System · Lockheed Martin L-1011-385-1, L-1011-385-1-14 and L-1011-385-1-15Effective Mar 5, 1975AD 74-26-06Fire Pull Handle Assembly · Lockheed Martin L-1011-385-1Effective Mar 4, 1975AD 75-05-07Navigation System · King Radio Navigation SystemEffective Feb 28, 1975AD 74-10-08Horizontal Stabilizer · Boeing 727-100 Series, 727-100C Series, 727-200 Series and 3 moreEffective Feb 27, 1975AD 75-05-02Engine Oil · Beryl D Shannon Aviation Specialties Engine Crankcase… (D'Shannon Products STC SA2653WE)Effective Feb 21, 1975AD 75-04-12Markings on Tachometer · American Champion 8GCBCEffective Feb 21, 1975AD 75-04-11HistoricalIngestion of Ice and Snow · McDonnell Douglas DC-10-10, DC-10-10F, DC-10-30 and 1 moreEffective Feb 21, 1975 · Replaced by AD 94-22-01AD 75-04-10Heater Overheat Conditions · Lockheed Martin L-1011-385-1, L-1011-385-1-14 and L-1011-385-1-15Effective Feb 19, 1975AD 75-04-07Tenth Stage Compressor Disk · Pratt & Whitney Division JT3D-3, JT3D-3B and JT3D-7Effective Feb 19, 1975AD 75-04-02Main Rotor Spindles · Orlando Helicopter Airways CH-19E, H-19A, H-19D and 8 moreEffective Feb 19, 1975AD 75-04-05Engine Fuel Pressure Switches · Sabreliner NA-265, NA-265-20, NA-265-30 and 5 moreEffective Feb 18, 1975AD 75-04-03Oxygen · Boeing DC-10-10, DC-10-10F, DC-10-30 and 2 moreEffective Feb 14, 1975AD 75-03-05Pitch Lock Regulatory Assembly · Hamilton Sundstrand 54HEffective Feb 5, 1975AD 75-01-06Auxiliary Power Units · Airesearch Auxiliary Power Units, 747-100 Series, 747-100B Series and 10 moreEffective Jan 31, 1975AD 65-21-01Starters · Bendix StartersEffective Jan 28, 1975AD 75-02-05Potential Fire Hazard · Boeing DC-8-21, DC-8-31, DC-8-32 and 11 moreEffective Jan 24, 1975AD 75-02-04Electrical Appurtenances · D & R Nevada 22, 22M, 30 and 1 moreEffective Jan 24, 1975AD 74-18-15Emergency Locator Transmitter · Leigh Systems Emergency Locator TransmitterEffective Jan 23, 1975AD 75-01-05Compressor Impeller Assembly Vane · Honeywell International T5313BEffective Jan 17, 1975AD 75-01-07Exhaust System Failures · Continental TSIO-520-D engine (Standard Aero STC SA1035WE)Effective Jan 13, 1975AD 75-02-03Nose Wheel Fork Assembly · Large nose gear fork and 8.00-6 nose gear tire (Airglas STC SA281AL)Published Jan 7, 1975AD 75-01-04Fuel Selector Valve · Textron 19A, 23, A23 and 10 moreEffective Jan 7, 1975AD 75-01-03Landing Gear Warning System · Sabreliner NA-265, NA-265-20, NA-265-30 and 4 moreEffective Jan 6, 1975AD 75-01-02Elevator Control Forces · Piper PA-36-285Effective Jan 6, 1975AD 74-25-04Horizontal Stabilizer · Lockheed Martin 188A and 188CEffective Jan 3, 1975AD 74-26-05Fuel Control Units · Pratt & Whitney Canada JT15D-1 and JT15D-4Effective Jan 2, 1975