# Airworthiness directives that may apply: N44DS

A list on [N44DS](https://openairdocs.org/aircraft/N44DS.md).

Matched by this aircraft’s airframe and engine models. Each AD’s applicability may narrow it by serial number, part number or equipment.

- [AD 2026-16-04](https://openairdocs.org/ad/2026-16-04.md): Time Limits/Maintenance Checks · Effective Sep 17, 2026
- [AD 2025-24-01](https://openairdocs.org/ad/2025-24-01.md): Passenger Compartment Windows, Door Windows · Effective Jan 12, 2026
- [AD 2025-14-07](https://openairdocs.org/ad/2025-14-07.md): Fire Detection System · Effective Aug 26, 2025
- [AD 2025-13-09](https://openairdocs.org/ad/2025-13-09.md): Main rotor control · Effective Aug 14, 2025
- [AD 2025-04-09](https://openairdocs.org/ad/2025-04-09.md): Bulkhead/Firewall · Effective Apr 11, 2025
- [AD 2025-03-02](https://openairdocs.org/ad/2025-03-02.md): Flight compartment equipment · Effective Mar 7, 2025
- [AD 2023-11-07](https://openairdocs.org/ad/2023-11-07.md): Ground Proximity System · Effective Jun 22, 2023 · Supersedes AD 2021-23-13
- [AD 2022-22-02](https://openairdocs.org/ad/2022-22-02.md): Placards and Markings, Passenger/Crew Doors · Effective Dec 21, 2022
- [AD 2022-13-14](https://openairdocs.org/ad/2022-13-14.md): Tail Rotor Drive System · Effective Aug 15, 2022
- [AD 2022-11-18](https://openairdocs.org/ad/2022-11-18.md): Engine Cowling System · Effective Jul 13, 2022
- [AD 2022-09-04](https://openairdocs.org/ad/2022-09-04.md): Tail Rotor Drive System · Effective May 31, 2022 · Supersedes AD 2021-05-05
- [AD 2022-08-02](https://openairdocs.org/ad/2022-08-02.md): Engine Controls · Effective May 17, 2022
- [AD 2022-01-03](https://openairdocs.org/ad/2022-01-03.md): Fire Bottle, Portable · Effective Mar 7, 2022
- [AD 2021-26-18](https://openairdocs.org/ad/2021-26-18.md): Tail Rotor Drive System · Effective Feb 9, 2022 · Supersedes AD 2020-21-01
- [AD 2021-22-16](https://openairdocs.org/ad/2021-22-16.md): Main Rotor Drive System · Effective Jan 3, 2022
- [AD 2021-17-17](https://openairdocs.org/ad/2021-17-17.md): Cabin Equipment/Furnishings · Effective Nov 22, 2021
- [AD 2021-22-07](https://openairdocs.org/ad/2021-22-07.md): Fire Bottle, Portable · Effective Nov 18, 2021
- [AD 2021-18-06](https://openairdocs.org/ad/2021-18-06.md): Engine Cowling System · Effective Sep 10, 2021 · Supersedes AD 2021-11-03
- [AD 2021-07-07](https://openairdocs.org/ad/2021-07-07.md): Rotorcraft flight control · Effective May 10, 2021
- [AD 2021-05-06](https://openairdocs.org/ad/2021-05-06.md): Window/Windshield System · Effective Apr 19, 2021
- [AD 2021-02-09](https://openairdocs.org/ad/2021-02-09.md): Main Rotor Gearbox · Effective Apr 15, 2021
- [AD 2021-02-08](https://openairdocs.org/ad/2021-02-08.md): Fuselage Structure · Effective Apr 15, 2021 · Supersedes AD 2018-19-01
- [AD 2021-02-01](https://openairdocs.org/ad/2021-02-01.md): Placards and markings · Effective Apr 6, 2021 · Supersedes AD 2015-26-01
- [AD 2021-03-06](https://openairdocs.org/ad/2021-03-06.md): Main Rotor Gearbox · Effective Apr 1, 2021
- [AD 2020-21-15](https://openairdocs.org/ad/2020-21-15.md): Tail Rotor Gearbox · Effective Dec 7, 2020
- [AD 2020-20-14](https://openairdocs.org/ad/2020-20-14.md): Rotorcraft Servo System · Effective Oct 23, 2020
- [AD 2020-15-01](https://openairdocs.org/ad/2020-15-01.md): Attitude and Direction Data System · Effective Aug 17, 2020
- [AD 2016-05-10](https://openairdocs.org/ad/2016-05-10.md): Life Raft · Effective Mar 28, 2016
- [AD 2015-11-06](https://openairdocs.org/ad/2015-11-06.md): Main Rotor Control · Effective Jul 13, 2015 · Supersedes AD 2013-18-01
- [AD 2015-10-05](https://openairdocs.org/ad/2015-10-05.md): Equipment/Furnishing · Effective Jun 5, 2015
- [AD 2014-02-04](https://openairdocs.org/ad/2014-02-04.md): Vertical Stabilizer Structure · Effective Mar 7, 2014
- [AD 2013-19-07](https://openairdocs.org/ad/2013-19-07.md): JASC Code: 2510: Flight Compartment Equipment · Effective Nov 6, 2013
- [AD 2013-12-04](https://openairdocs.org/ad/2013-12-04.md): Fuel storage · Effective Aug 2, 2013
- [AD 2013-03-02](https://openairdocs.org/ad/2013-03-02.md): Tail Rotor Head · Effective Feb 27, 2013 · Supersedes AD 2012-19-09
- [AD 2012-26-10](https://openairdocs.org/ad/2012-26-10.md): Main Rotor Gearbox · Effective Feb 13, 2013
- [AD 2012-17-02](https://openairdocs.org/ad/2012-17-02.md): Cracked main rotor mast nut · Effective Oct 10, 2012
- [AD 2012-16-02](https://openairdocs.org/ad/2012-16-02.md): Cabin Equipment/Furnishings · Effective Sep 26, 2012
- [AD 2010-20-20](https://openairdocs.org/ad/2010-20-20.md): MGB planet gear carrier · Effective Nov 12, 2010 · Supersedes AD 2005-03-09
- [AD 2010-19-05](https://openairdocs.org/ad/2010-19-05.md): Tail rotor · Effective Oct 27, 2010
- [AD 2010-06-07](https://openairdocs.org/ad/2010-06-07.md): Rotorcraft Flight Control · Effective Apr 21, 2010
- [AD 2009-22-04](https://openairdocs.org/ad/2009-22-04.md): Freezing of the route display on the navigation display (ND) in the Sector mode · Effective Nov 12, 2009
- [AD 2009-06-01](https://openairdocs.org/ad/2009-06-01.md): SUMMARY: Short circuit generated sufficient heat to ignite the paint on the cooler support cowling near the hoist cut-off connector "24 Delta.'' · Effective Mar 31, 2009
- [AD 2004-16-15 R1](https://openairdocs.org/ad/2004-16-15-R1.md): Main gearbox (MGB) base plate · Effective Aug 30, 2006 · Supersedes AD 2004-16-15
- [AD 2006-06-01](https://openairdocs.org/ad/2006-06-01.md): Electrical cable bundle · Effective Apr 18, 2006
- [AD 2005-13-23](https://openairdocs.org/ad/2005-13-23.md): Hydraulic brake hose (hose) · Effective Jul 29, 2005 · Supersedes AD 2003-18-03
- [AD 2004-15-11](https://openairdocs.org/ad/2004-15-11.md): Auxiliary System Unit (ASU) Board · Effective Sep 3, 2004
- [AD 2004-12-06](https://openairdocs.org/ad/2004-12-06.md): Main rotor blade (blade) · Effective Jun 29, 2004
- [AD 2004-05-29](https://openairdocs.org/ad/2004-05-29.md): Tail rotor blade (blade) -to-torsion bar attachment · Effective Apr 19, 2004
- [AD 2003-20-12](https://openairdocs.org/ad/2003-20-12.md): Siren Cargo Hook Locking Catch · Effective Nov 18, 2003
- [AD 2003-19-01](https://openairdocs.org/ad/2003-19-01.md): Fenestron pitch change control rod (control rod) · Effective Oct 23, 2003
- [AD 2003-19-12](https://openairdocs.org/ad/2003-19-12.md): Display (display) panel · Effective Oct 14, 2003
- [AD 2002-22-15](https://openairdocs.org/ad/2002-22-15.md): Locking pins · Effective Dec 17, 2002
- [AD 2002-19-06](https://openairdocs.org/ad/2002-19-06.md): Interconnection Board · Effective Oct 9, 2002
- [AD 2002-15-08](https://openairdocs.org/ad/2002-15-08.md): Cargo Hooks · Effective Sep 6, 2002
- [AD 2001-26-54](https://openairdocs.org/ad/2001-26-54.md): RFM Limitations Section - IFR Flight - SMD45H · Emergency AD · Effective Feb 19, 2002
- [AD 2001-23-11](https://openairdocs.org/ad/2001-23-11.md): Cabin Sliding Door Rails · Effective Dec 11, 2001 · Supersedes AD 2001-13-04
- [AD 2026-15-03](https://openairdocs.org/ad/2026-15-03.md): Turbine Section · Effective Sep 3, 2026
- [AD 2023-22-03](https://openairdocs.org/ad/2023-22-03.md): Turbine section · Effective Dec 26, 2023 · Supersedes AD 2021-08-02
- [AD 2023-13-14](https://openairdocs.org/ad/2023-13-14.md): Engine · Effective Jul 25, 2023
- [AD 2021-13-08](https://openairdocs.org/ad/2021-13-08.md): Fuel Control/Turbine Engines · Effective Aug 19, 2021
- [AD 2021-13-03](https://openairdocs.org/ad/2021-13-03.md): Fuel Control/Turbine Engines · Effective Aug 13, 2021
- [AD 2021-05-08](https://openairdocs.org/ad/2021-05-08.md): Engine BMEP/Torque Indicating · Effective Apr 15, 2021
- [AD 2021-05-22](https://openairdocs.org/ad/2021-05-22.md): Turbine Section · Effective Mar 22, 2021
- [AD 2018-12-01](https://openairdocs.org/ad/2018-12-01.md): Engine Fuel and Control · Effective Sep 12, 2018 · Supersedes AD 2012-03-11
- [AD 2018-10-01](https://openairdocs.org/ad/2018-10-01.md): Accessory Gearboxes · Effective Jun 11, 2018
- [AD 2017-15-07](https://openairdocs.org/ad/2017-15-07.md): Fuel Control/Turbine Engines · Effective Aug 8, 2017 · Supersedes AD 2017-04-51
- [AD 2017-05-08](https://openairdocs.org/ad/2017-05-08.md): Failure of the HMU · Effective Apr 13, 2017
- [AD 2016-25-13](https://openairdocs.org/ad/2016-25-13.md): Engine accessory gearbox (AGB) · Effective Feb 3, 2017 · Supersedes AD 2016-04-12
- [AD 2016-22-10](https://openairdocs.org/ad/2016-22-10.md): Centrifugal impeller · Effective Dec 6, 2016
- [AD 2016-11-09](https://openairdocs.org/ad/2016-11-09.md): Divergent rubbing between the piston shaft small diameter labyrinth and the rear bearing support · Effective Jul 5, 2016
- [AD 2016-08-16](https://openairdocs.org/ad/2016-08-16.md): Constant delta-pressure (delta-P) diaphragm of the fuel metering valve · Effective May 25, 2016
- [AD 2016-04-14](https://openairdocs.org/ad/2016-04-14.md): Tachometer box · Effective Apr 1, 2016
- [AD 2016-03-02](https://openairdocs.org/ad/2016-03-02.md): Torque conformation box (TCB) · Effective Mar 15, 2016
- [AD 2015-13-04](https://openairdocs.org/ad/2015-13-04.md): Engine accessory gearbox (AGB) · Effective Sep 1, 2015 · Supersedes AD 2014-19-05
- [AD 2014-12-05](https://openairdocs.org/ad/2014-12-05.md): HMU drive gear shaft · Effective Aug 4, 2014 · Supersedes AD 2007-10-07
- [AD 2014-07-06](https://openairdocs.org/ad/2014-07-06.md): Hydromechanical metering unit · Effective May 15, 2014 · Supersedes AD 2007-19-09 R1
- [AD 2013-24-05](https://openairdocs.org/ad/2013-24-05.md): Free turbine module · Effective Jan 28, 2014
- [AD 2013-22-22](https://openairdocs.org/ad/2013-22-22.md): Hydromechanical metering unit (HMU) · Effective Dec 20, 2013 · Supersedes AD 2013-01-07
- [AD 2013-08-22](https://openairdocs.org/ad/2013-08-22.md): Tachometer's unit cycle-counting feature · Effective May 28, 2013
- [AD 2012-27-02](https://openairdocs.org/ad/2012-27-02.md): High gas generator speed (NG) rating vibration check · Effective Feb 14, 2013
- [AD 2012-24-03](https://openairdocs.org/ad/2012-24-03.md): Gas generator rotating assembly · Effective Jan 7, 2013 · Supersedes AD 2003-12-14
- [AD 2012-23-12](https://openairdocs.org/ad/2012-23-12.md): Fuel control units (FCUs) · Effective Jan 7, 2013 · Supersedes AD 2009-03-04
- [AD 2012-18-18](https://openairdocs.org/ad/2012-18-18.md): Gas generator (GG) turbine blade · Effective Oct 24, 2012 · Supersedes AD 2011-13-05
- [AD 2012-12-20](https://openairdocs.org/ad/2012-12-20.md): Digital engine control units · Effective Jul 26, 2012
- [AD 2012-08-18](https://openairdocs.org/ad/2012-08-18.md): PT Blade Rupture · Effective May 30, 2012
- [AD 2011-27-01](https://openairdocs.org/ad/2011-27-01.md): 2nd stage Nozzle Guide Vanes · Effective Jan 27, 2012
- [AD 2010-19-06 R1](https://openairdocs.org/ad/2010-19-06-R1.md): Turbine disc · Effective Jan 17, 2012 · Supersedes AD 2010-19-06
- [AD 2011-24-07](https://openairdocs.org/ad/2011-24-07.md): Hydromechanical units (HMUs) · Effective Dec 14, 2011
- [AD 2011-05-08](https://openairdocs.org/ad/2011-05-08.md): Fuel ejector · Effective Mar 9, 2011 · Supersedes AD 2011-05-51
- [AD 2009-09-03 R1](https://openairdocs.org/ad/2009-09-03-R1.md): Uncommanded in-flight engine shutdown · Effective Nov 1, 2010 · Supersedes AD 2009-09-03
- [AD 2010-20-05](https://openairdocs.org/ad/2010-20-05.md): Engines with modification TU 132 · Effective Oct 12, 2010 · Supersedes AD 2005-13-25 R1
- [AD 2010-10-09](https://openairdocs.org/ad/2010-10-09.md): 2nd stage turbine blades · Effective Jun 21, 2010 · Supersedes AD 2008-07-01
- [AD 2009-08-08 R1](https://openairdocs.org/ad/2009-08-08-R1.md): PT Blades · Effective May 7, 2010 · Supersedes AD 2009-08-08
- [AD 2010-04-07](https://openairdocs.org/ad/2010-04-07.md): Engine · Effective Mar 23, 2010
- [AD 2010-02-01](https://openairdocs.org/ad/2010-02-01.md): Reduction Gear Box Intermediate Pinion · Effective Feb 18, 2010
- [AD 2009-26-07](https://openairdocs.org/ad/2009-26-07.md): Reduction gearboxes (module M05) · Effective Jan 12, 2010 · Supersedes AD 2009-12-51
- [AD 2009-01-11](https://openairdocs.org/ad/2009-01-11.md): Hydro Mechanical Unit (HMU) low fuel pressure switch · Effective Feb 27, 2009
- [AD 2007-24-10](https://openairdocs.org/ad/2007-24-10.md): HP/LP fuel pump · Effective Dec 14, 2007
- [AD 2007-10-06](https://openairdocs.org/ad/2007-10-06.md): Cases of flameout · Effective May 29, 2007
- [AD 2007-02-17](https://openairdocs.org/ad/2007-02-17.md): Fuel leak at the level of start electro valve · Effective Mar 2, 2007
- [AD 2006-06-17](https://openairdocs.org/ad/2006-06-17.md): 2nd stage nozzle guide vanes (NGV2) · Effective Apr 27, 2006
- [AD 2005-25-13](https://openairdocs.org/ad/2005-25-13.md): Tree turbine shield · Effective Dec 28, 2005
- [AD 2003-16-03](https://openairdocs.org/ad/2003-16-03.md): Second Stage Turbine Disk · Effective Sep 12, 2003 · Supersedes AD 95-11-01
- [AD 2003-11-08](https://openairdocs.org/ad/2003-11-08.md): 2nd stage gas generator · Effective Jul 3, 2003
- [AD 2003-03-12](https://openairdocs.org/ad/2003-03-12.md): Bleed Valve · Effective Mar 7, 2003
- [AD 2002-16-25](https://openairdocs.org/ad/2002-16-25.md): Fuel pumps · Effective Sep 26, 2002
- [AD 2002-14-26](https://openairdocs.org/ad/2002-14-26.md): Containment Shield Rings · Effective Aug 6, 2002
- [AD 2000-20-01](https://openairdocs.org/ad/2000-20-01.md): Rear Bearing Oil Return System · Effective Oct 17, 2000
- [AD 94-25-08](https://openairdocs.org/ad/94-25-08.md): Gearboxes · Effective Jan 17, 1995
- [AD 91-24-02](https://openairdocs.org/ad/91-24-02.md): Main Rotor Drive Shaft · Effective Feb 21, 1992
- [AD 2021-23-13](https://openairdocs.org/ad/2021-23-13.md): Ground Proximity System · Historical · Effective Dec 9, 2021 · Replaced by AD 2023-11-07
- [AD 2021-11-03](https://openairdocs.org/ad/2021-11-03.md): Engine Cowling System · Historical · Effective Jul 15, 2021 · Replaced by AD 2021-18-06
- [AD 2021-05-05](https://openairdocs.org/ad/2021-05-05.md): Tail Rotor · Historical · Effective Apr 16, 2021 · Replaced by AD 2022-09-04
- [AD 2020-21-01](https://openairdocs.org/ad/2020-21-01.md): Tail Rotor Drive System · Historical · Effective Nov 12, 2020 · Replaced by AD 2021-26-18
- [AD 2018-19-01](https://openairdocs.org/ad/2018-19-01.md): Rotorcraft tail boom · Historical · Effective Oct 22, 2018 · Replaced by AD 2021-02-08
- [AD 2016-23-05](https://openairdocs.org/ad/2016-23-05.md): Tail Rotor Gearbox · Historical · Effective Dec 12, 2016 · Replaced by AD 2021-05-05
- [AD 2015-26-01](https://openairdocs.org/ad/2015-26-01.md): Placards and Markings · Historical · Effective Jan 26, 2016 · Replaced by AD 2021-02-01
- [AD 2013-18-01](https://openairdocs.org/ad/2013-18-01.md): Main Rotor Control · Historical · Effective Oct 18, 2013 · Replaced by AD 2015-11-06
- [AD 2012-19-09](https://openairdocs.org/ad/2012-19-09.md): Tail Rotor Head · Historical · Effective Oct 10, 2012 · Replaced by AD 2013-03-02
- [AD 2007-25-08](https://openairdocs.org/ad/2007-25-08.md): T/R gearbox (TGB) · Historical · Effective Jan 14, 2008 · Replaced by AD 2016-23-05
- [AD 2006-09-10](https://openairdocs.org/ad/2006-09-10.md): Pitch control rod assembly double bearing (bearing) · Historical · Effective May 18, 2006 · Replaced by AD 2007-25-08
- [AD 2005-03-09](https://openairdocs.org/ad/2005-03-09.md): Main gearbox (MGB) planet gear · Historical · Effective Mar 1, 2005 · Replaced by AD 2010-20-20
- [AD 2004-16-15](https://openairdocs.org/ad/2004-16-15.md): Main gearbox (MGB) · Historical · Effective Sep 3, 2004 · Replaced by AD 2004-16-15 R1
- [AD 2003-18-03](https://openairdocs.org/ad/2003-18-03.md): Hydraulic brake hose (hose) · Historical · Effective Oct 14, 2003 · Replaced by AD 2005-13-23
- [AD 2001-13-04](https://openairdocs.org/ad/2001-13-04.md): Cabin Sliding Door · Historical · Effective Jul 23, 2001 · Replaced by AD 2001-23-11
- [AD 2023-01-12](https://openairdocs.org/ad/2023-01-12.md): Engine (Turbine/Turboprop) · Historical · Effective Feb 6, 2023
- [AD 2021-08-02](https://openairdocs.org/ad/2021-08-02.md): Turbine Section · Historical · Effective Jun 21, 2021 · Replaced by AD 2023-22-03
- [AD 2017-04-51](https://openairdocs.org/ad/2017-04-51.md): Fuel Control/ Turbine Engines · Historical · Effective Mar 30, 2017 · Replaced by AD 2017-15-07
- [AD 2016-04-12](https://openairdocs.org/ad/2016-04-12.md): Engine accessory gearbox (AGB) · Historical · Effective Apr 14, 2016 · Replaced by AD 2016-25-13
- [AD 2014-19-05](https://openairdocs.org/ad/2014-19-05.md): Engine accessory gearbox (AGB) · Historical · Effective Nov 5, 2014 · Replaced by AD 2015-13-04
- [AD 2013-01-07](https://openairdocs.org/ad/2013-01-07.md): Hydro-mechanical metering unit (HMU) · Historical · Effective Mar 7, 2013 · Replaced by AD 2013-22-22
- [AD 2012-03-11](https://openairdocs.org/ad/2012-03-11.md): High-pressure/low-pressure (HP/LP) pump hydro-mechanical metering units (HMUs) · Historical · Effective Mar 20, 2012 · Replaced by AD 2018-12-01
- [AD 2011-13-05](https://openairdocs.org/ad/2011-13-05.md): Gas Generator (GG) Turbine Blade · Historical · Effective Aug 12, 2011 · Replaced by AD 2012-18-18
- [AD 2011-05-51](https://openairdocs.org/ad/2011-05-51.md): Low-pressure fuel system ejectors · Historical · Replaced by AD 2011-05-08
- [AD 2010-19-06](https://openairdocs.org/ad/2010-19-06.md): Gas generator · Historical · Effective Oct 6, 2010 · Replaced by AD 2010-19-06 R1
- [AD 2007-19-09 R1](https://openairdocs.org/ad/2007-19-09-R1.md): Pressure relief valve · Historical · Effective Jul 7, 2010 · Replaced by AD 2014-07-06
- [AD 2010-03-06](https://openairdocs.org/ad/2010-03-06.md): Fuel pump · Historical · Effective Mar 11, 2010 · Replaced by AD 2012-03-11
- [AD 2009-12-51](https://openairdocs.org/ad/2009-12-51.md): Gearboxes (module M05) · Historical · Effective Jul 15, 2009 · Replaced by AD 2009-26-07
- [AD 2009-09-03](https://openairdocs.org/ad/2009-09-03.md): Turbine blade · Historical · Effective Jun 1, 2009 · Replaced by AD 2009-09-03 R1
- [AD 2009-08-08](https://openairdocs.org/ad/2009-08-08.md): Power turbine blades · Historical · Effective Apr 29, 2009 · Replaced by AD 2009-08-08 R1
- [AD 2009-03-04](https://openairdocs.org/ad/2009-03-04.md): Red disk plug · Historical · Effective Mar 27, 2009 · Replaced by AD 2012-23-12
- [AD 2008-07-01](https://openairdocs.org/ad/2008-07-01.md): Gas generator 2nd stage turbine blades · Historical · Effective Apr 30, 2008 · Replaced by AD 2010-10-09
- [AD 2007-19-09](https://openairdocs.org/ad/2007-19-09.md): Constant delta pressure valve · Historical · Effective Oct 3, 2007 · Replaced by AD 2007-19-09 R1
- [AD 2007-10-07](https://openairdocs.org/ad/2007-10-07.md): HP/LP pump assembly drive shaft · Historical · Effective May 29, 2007 · Replaced by AD 2014-12-05
- [AD 2005-13-25 R1](https://openairdocs.org/ad/2005-13-25-R1.md): HMU acceleration controller axle · Historical · Effective May 22, 2007 · Replaced by AD 2010-20-05
- [AD 2007-03-14](https://openairdocs.org/ad/2007-03-14.md): Hydro-mechanical metering unit (HMU) · Historical · Effective Feb 20, 2007 · Replaced by AD 2007-19-09
- [AD 2006-21-10](https://openairdocs.org/ad/2006-21-10.md): Splines of high-pressure (HP) pump drive gear shaft · Historical · Effective Nov 24, 2006 · Replaced by AD 2007-10-07
- [AD 2006-02-08 R1](https://openairdocs.org/ad/2006-02-08-R1.md): Gas generator 2nd stage turbine blades. · Historical · Effective Sep 13, 2006 · Replaced by AD 2008-07-01
- [AD 2006-02-08](https://openairdocs.org/ad/2006-02-08.md): 2nd stage turbine blades · Historical · Effective Feb 28, 2006 · Replaced by AD 2006-02-08 R1
- [AD 2005-13-25](https://openairdocs.org/ad/2005-13-25.md): Hydromechanical unit (HMU) acceleration controller · Historical · Effective Jul 11, 2005 · Replaced by AD 2005-13-25 R1
- [AD 2003-12-14](https://openairdocs.org/ad/2003-12-14.md): Axial Compressor · Historical · Effective Jul 25, 2003 · Replaced by AD 2012-24-03
- [AD 95-11-01](https://openairdocs.org/ad/95-11-01.md): Generator · Historical · Effective Jun 21, 1995 · Replaced by AD 2003-16-03

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT d.ad_number, d.status, d.subject, d.effective_date, m.matched_by
FROM (
  SELECT ad_id, min(rank) AS rank, arg_min(matched_by, rank) AS matched_by
  FROM (SELECT ad_id, 1 AS rank, 'airframe' AS matched_by FROM 'https://openairdocs.org/data/latest/faa_aircraft_model_directive.parquet' WHERE aircraft_model_code = '8681000'
    UNION ALL SELECT ad_id, 2, 'engine' FROM 'https://openairdocs.org/data/latest/faa_engine_model_directive.parquet' WHERE engine_model_code = '60031')
  GROUP BY ad_id
) m JOIN 'https://openairdocs.org/data/latest/faa_directive.parquet' d USING (ad_id)
ORDER BY d.status = 'Historical', m.rank, coalesce(d.effective_date, d.publication_date, d.issue_date) DESC, d.ad_number DESC
```

This list as a web page: https://openairdocs.org/aircraft/N44DS/ads

---
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