Allison 250 series

Airworthiness directives that may apply · 62

Matched by model name and maker. Each AD’s applicability may narrow it by serial number, part number or configuration.

Query with SQL
duckdb -csv -c "SELECT d.ad_number, d.status, d.subject, d.effective_date
  FROM 'https://openairdocs.org/data/latest/faa_directive.parquet' d
  WHERE d.ad_id IN (SELECT ad_id FROM 'https://openairdocs.org/data/latest/faa_engine_model_directive.parquet' WHERE engine_model_code IN ('03014', '03019'))
  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.

1968In forceSuperseded2026
ADs by the year they took effect: 61 ADs
19682
19694
19721
19731
19741
19772
19781
19793
19801
19811
19824
19832
19842
19851
19868
19881
19892
19941
19962
19972
19981
19991
20011
20021
20031
20041
20055
20063
20121
20151
20171
20181
20221

Engine · Allison 250 series

AD 2022-10-06Turbine SectionEffective Jun 28, 2022 · Supersedes AD 2017-18-14AD 2018-13-01Turbine GovernorEffective Aug 16, 2018AD 2006-20-07Adds an additional life limit for third- and fourth-stage turbine wheelsEffective Nov 2, 2006AD 2006-16-04Inspection of the fuel nozzle screenEffective Sep 7, 2006 · Supersedes AD 2004-24-09AD 2006-13-06Gas producer rotor assembly tie boltsEffective Jul 26, 2006AD 2005-20-11Airfoils at the hub and shroud of third-stage turbine wheelsEffective Oct 18, 2005AD 2005-10-13Turbine energy absorbing ringEffective Jun 22, 2005AD 2004-26-09Compressor Adaptor CouplingsEffective Feb 8, 2005AD 2004-24-04Hydromechanical unit (HMU) Power Lever Angle (PLA) potentiometerEffective Jan 3, 2005 · Supersedes AD 2003-13-10AD 2004-14-02SN third-stage turbine wheelsEffective Jul 26, 2004AD 2002-06-08Third Stage Turbine WheelsEffective Apr 26, 2002AD 2001-24-12Helical Torquemeter Gearshaft AssemblyEffective Dec 19, 2001 · Supersedes AD 2001-20-51AD 98-24-28Main Fuel Control BellowsEffective Jan 7, 1999AD 98-10-03Hydromechanical UnitEffective May 26, 1998 · Supersedes AD 97-21-09AD 97-25-09Helical Power Takeoff Gearshaft AssemblyEffective Dec 23, 1997AD 96-19-01Superior Air Parts Manufacture Approval (PMA) BearingsEffective Sep 26, 1996AD 93-25-05Driveshaft Flex Coupling Bolts, Bushings, and NutsEffective Feb 22, 1994AD 89-23-12Turbine Nozzle AssemblyEffective Oct 29, 1989AD 88-17-01Fuel ControlsEffective Mar 1, 1989AD 88-07-06Gas Producer Support Pressure Oil Tube AssemblyEffective Mar 30, 1988AD 86-20-13External SplinesEffective Dec 3, 1986AD 86-19-12Gas Producer Turbine RotorEffective Oct 3, 1986AD 85-25-07 R1Outer Combustion Case AssemblyEffective Aug 15, 1986AD 86-16-03Scavenge Line Air/Oil Centrifugal Separator AssemblyEffective Aug 13, 1986AD 85-25-12Turbine-To-Compressor-CouplingEffective Jan 6, 1986AD 85-25-09Turbine Shafts And CouplingsEffective Jan 6, 1986AD 85-25-08Compressor Mount AssemblyEffective Jan 6, 1986AD 84-24-54 R2Gas Producer Turbine RotorEffective Jan 6, 1986AD 85-06-51Magnetic PlugsEffective May 10, 1985AD 84-17-51Turbine Rotor AssemblyEffective Dec 26, 1984AD 83-03-02 R1Slotted Third Stage Turbine WheelsEffective Feb 28, 1984AD 81-13-12 R14th Stage Turbine Nozzle AssemblyEffective Sep 26, 1983AD 83-01-04Turbine AssembliesEffective Jan 24, 1983AD 82-24-05Control Assembly and Power Turbine Governor AssemblyEffective Nov 26, 1982AD 82-13-03Modify Engine High Pressure Fuel Control Filter AssemblyEffective Jul 1, 1982AD 82-12-04Combined Power Turbine and Propeller Governor AssemblyEffective Jun 7, 1982AD 82-03-02N2 (Electronic) Overspeed Control SystemEffective Feb 4, 1982AD 79-21-01 R1Third Stage Turbine Wheel BladeEffective Jun 3, 1981AD 79-16-06Accessory Drive GearboxEffective Jan 11, 1980AD 78-14-08Fuel Pump Drive SplineEffective Oct 24, 1979AD 79-18-13Third Stage Turbine WheelEffective Sep 6, 1979AD 79-06-05Overspeed Control SystemEffective Mar 26, 1979AD 78-26-01Engine Electrical SystemEffective Nov 3, 1978AD 77-15-12Power Turbine Coupling NutEffective Sep 23, 1977AD 77-09-08Bleed Valve DiaphragmEffective Jul 18, 1977AD 74-14-03Fuel Control RiggingEffective Jul 10, 1974AD 73-19-07Turbine Governor-To-Fuel Control TubeEffective Sep 14, 1973AD 72-03-06Turbine WheelsEffective Feb 8, 1972AD 69-26-03Modify Power and Accessories Gear BoxEffective Dec 25, 1969AD 69-18-04Torquemeter ShaftgearEffective Oct 18, 1969AD 69-18-02Internal SplinesEffective Sep 3, 1969AD 69-16-05Lower Gear Box and Oil Outlet Magnetic PlugsEffective Aug 30, 1969AD 68-22-02Compressor AssembliesEffective Nov 1, 1968AD 68-12-06Compressor BladesEffective Jun 18, 1968
Superseded and historical ADs · 8
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