# Airworthiness directives: TCDS 3A20 A list on [TCDS 3A20](https://openairdocs.org/tcds/3A20.md). ADs whose products are models on this data sheet, matched by model and maker. Those in force first, newest first. Page 1 of 2 · 93 ADs - [AD 2023-10-02](https://openairdocs.org/ad/2023-10-02.md): Indicating/Recording System, Navigation · Effective May 26, 2023 · Supersedes AD 2021-23-12 - [AD 2021-05-17](https://openairdocs.org/ad/2021-05-17.md): NAVIGATION SYSTEM · Effective Apr 29, 2021 · Supersedes AD 2019-12-09 - [AD 2020-25-01](https://openairdocs.org/ad/2020-25-01.md): Wings · Effective Jan 11, 2021 - [AD 2012-21-06](https://openairdocs.org/ad/2012-21-06.md): Electric power · Effective Nov 27, 2012 - [AD 2009-05-05](https://openairdocs.org/ad/2009-05-05.md): Primary Flight Displays · Effective Apr 3, 2009 · Supersedes AD 2008-06-28 R1 - [AD 2006-16-18 R1](https://openairdocs.org/ad/2006-16-18-R1.md): Installing a warning placard on the TAWS/RMI · Effective Jul 18, 2008 · Supersedes AD 2006-16-18 - [AD 2007-12-06](https://openairdocs.org/ad/2007-12-06.md): Flight controls · Effective Jul 16, 2007 · Supersedes AD 2006-23-02 - [AD 2006-13-10](https://openairdocs.org/ad/2006-13-10.md): Rudder trim tab · Effective Aug 7, 2006 · Supersedes AD 92-07-05 - [AD 2005-18-20](https://openairdocs.org/ad/2005-18-20.md): "FASTprop" propeller de-icers · Effective Oct 14, 2005 - [AD 2005-01-19](https://openairdocs.org/ad/2005-01-19.md): Mode S transponders · Effective Feb 23, 2005 · Supersedes AD 2004-10-15 - [AD 2005-01-04](https://openairdocs.org/ad/2005-01-04.md): Fuel hose · Effective Feb 22, 2005 · Supersedes AD 98-15-13 - [AD 2004-23-02](https://openairdocs.org/ad/2004-23-02.md): Nose Landing Gear (NLG) Fork · Effective Dec 23, 2004 · Supersedes AD 87-22-01 R1 - [AD 2004-17-02](https://openairdocs.org/ad/2004-17-02.md): Cross shaft attach bolt · Effective Oct 4, 2004 - [AD 2003-13-16](https://openairdocs.org/ad/2003-13-16.md): Aft Pressure Bulkhead of Fuselage · Effective Aug 25, 2003 - [AD 2003-02-03](https://openairdocs.org/ad/2003-02-03.md): Airstair door and emergency exits · Effective Mar 7, 2003 - [AD 2002-14-19](https://openairdocs.org/ad/2002-14-19.md): Collins Air Data Computers (ADC) · Effective Aug 23, 2002 - [AD 2002-10-13](https://openairdocs.org/ad/2002-10-13.md): Exterior Door Operating Procedures · Effective Jul 8, 2002 - [AD 2002-09-12](https://openairdocs.org/ad/2002-09-12.md): Rivets in Left- and Right-Hand Nacelle and Spar Assembly · Effective Jun 21, 2002 - [AD 2002-01-10](https://openairdocs.org/ad/2002-01-10.md): Main Landing Gear Torque Knees · Effective Feb 22, 2002 - [AD 2001-23-17](https://openairdocs.org/ad/2001-23-17.md): GNS 430 units · Effective Dec 28, 2001 - [AD 2001-15-17](https://openairdocs.org/ad/2001-15-17.md): Transponder Control Panels · Effective Aug 20, 2001 - [AD 2001-11-03](https://openairdocs.org/ad/2001-11-03.md): Blower Motor Circuit · Effective Jul 20, 2001 - [AD 2000-18-02](https://openairdocs.org/ad/2000-18-02.md): Elevator Skin Assemblies · Effective Sep 22, 2000 - [AD 99-05-13 R1 WD](https://openairdocs.org/ad/99-05-13-R1-WD.md): Withdrawal of AD 99-05-13 · Effective Jul 5, 2000 · Supersedes AD 99-05-13 - [AD 2000-02-15](https://openairdocs.org/ad/2000-02-15.md): Engine and Propeller Configuration · Effective Feb 18, 2000 - [AD 99-18-15](https://openairdocs.org/ad/99-18-15.md): Landing Gear Emergency Hand Pumps · Effective Sep 27, 1999 - [AD 99-10-07](https://openairdocs.org/ad/99-10-07.md): Elevator Control Cable · Effective Jun 8, 1999 - [AD 99-09-10](https://openairdocs.org/ad/99-09-10.md): Landing Gear Hand Pump · Effective Jun 7, 1999 - [AD 99-09-15](https://openairdocs.org/ad/99-09-15.md): Flight Control Mechanism · Effective May 18, 1999 - [AD 98-25-02](https://openairdocs.org/ad/98-25-02.md): Top-mounted Antenna · Effective Dec 22, 1998 - [AD 98-04-24](https://openairdocs.org/ad/98-04-24.md): AFM - Limitations Section - Icing · Effective Mar 13, 1998 - [AD 97-25-03](https://openairdocs.org/ad/97-25-03.md): AFM - Limitations - Power Levers · Effective Jan 21, 1998 - [AD 97-25-01](https://openairdocs.org/ad/97-25-01.md): Outflow/Safety Valve · Effective Jan 11, 1998 - [AD 97-23-17](https://openairdocs.org/ad/97-23-17.md): Pneumatic Tubing · Effective Dec 29, 1997 - [AD 97-16-10](https://openairdocs.org/ad/97-16-10.md): Filters · Effective Sep 18, 1997 - [AD 97-06-06](https://openairdocs.org/ad/97-06-06.md): Pilot and Copilot Chairs Locking Pins · Effective May 9, 1997 - [AD 95-26-15 R1](https://openairdocs.org/ad/95-26-15-R1.md): Traffic Alert and Collision Avoidance Systems · Effective Dec 26, 1996 · Supersedes AD 95-26-15 - [AD 96-11-12](https://openairdocs.org/ad/96-11-12.md): Elevator Electric Trim Tab Or Autopilot System · Effective Jul 24, 1996 - [AD 96-03-13](https://openairdocs.org/ad/96-03-13.md): Main Landing Gear Drag Leg Lock Link · Effective Apr 1, 1996 - [AD 95-20-01 R1](https://openairdocs.org/ad/95-20-01-R1.md): Placard - Cabin Door · Effective Nov 3, 1995 - [AD 94-01-05](https://openairdocs.org/ad/94-01-05.md): Traffic Alert and Collision Avoidance System II Processors · Effective Feb 4, 1994 - [AD 94-01-06](https://openairdocs.org/ad/94-01-06.md): Traffic Alert and Collision Avoidance System II Processors · Effective Feb 4, 1994 - [AD 93-17-01](https://openairdocs.org/ad/93-17-01.md): Leading Edge Fuel Cell Nipples · Effective Oct 12, 1993 - [AD 92-15-01](https://openairdocs.org/ad/92-15-01.md): Truss-To-Firewall Bolts · Effective Aug 21, 1992 - [AD 90-08-17](https://openairdocs.org/ad/90-08-17.md): Fuselage Moisture Drain System · Effective May 7, 1990 - [AD 89-25-08](https://openairdocs.org/ad/89-25-08.md): Wing Main Spar Inspection · Effective Jan 4, 1990 - [AD 89-25-10](https://openairdocs.org/ad/89-25-10.md): Wing Main Spar Inspection · Effective Jan 4, 1990 - [AD 89-22-14](https://openairdocs.org/ad/89-22-14.md): Aileron Flutter · Effective Nov 17, 1989 - [AD 88-04-07](https://openairdocs.org/ad/88-04-07.md): Wing Spar Nuts Inspection · Effective Apr 18, 1988 - [AD 87-04-24](https://openairdocs.org/ad/87-04-24.md): Elevator Trim Cable System · Effective Apr 14, 1987 Next page: https://openairdocs.org/tcds/3A20/ads.md?page=2 ## 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 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_directive_product.parquet' WHERE tcds_number = '3A20') ORDER BY d.status = 'Historical', coalesce(d.effective_date, d.publication_date) DESC ``` This list as a web page: https://openairdocs.org/tcds/3A20/ads --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.