# Airworthiness directives: TCDS 3A21 A list on [TCDS 3A21](https://openairdocs.org/tcds/3A21.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 · 75 ADs - [AD 2024-14-03](https://openairdocs.org/ad/2024-14-03.md): Autopilot System · Effective Aug 20, 2024 - [AD 2023-09-09](https://openairdocs.org/ad/2023-09-09.md): Exhaust Turbine System (Recip) · Effective Jul 17, 2023 - [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 2023-02-17](https://openairdocs.org/ad/2023-02-17.md): Fuselage Main, Structure · Effective Mar 20, 2023 - [AD 2022-03-15](https://openairdocs.org/ad/2022-03-15.md): Fuel Quantity Indicator · Effective Mar 21, 2022 - [AD 2020-18-01](https://openairdocs.org/ad/2020-18-01.md): Fuselage · Effective Nov 12, 2020 - [AD 2020-03-16](https://openairdocs.org/ad/2020-03-16.md): Fuselage Main, Structure · Effective Mar 9, 2020 - [AD 2012-10-52](https://openairdocs.org/ad/2012-10-52.md): Turbochargers · Emergency AD · Effective Jun 26, 2012 - [AD 2012-10-04](https://openairdocs.org/ad/2012-10-04.md): Wings · Effective Jun 5, 2012 - [AD 2011-10-09](https://openairdocs.org/ad/2011-10-09.md): Seat Rails and Roller Housing Inspections · Effective Jun 17, 2011 · Supersedes AD 87-20-03 R2 - [AD 2008-26-10](https://openairdocs.org/ad/2008-26-10.md): Alternate static air source selector valve · Effective Jan 5, 2009 - [AD 2008-10-02](https://openairdocs.org/ad/2008-10-02.md): Part number identification placard · Effective May 12, 2008 - [AD 2006-03-08](https://openairdocs.org/ad/2006-03-08.md): Vacuum pumps · Effective Mar 10, 2006 - [AD 2005-25-08](https://openairdocs.org/ad/2005-25-08.md): Electronic Flight Information System (EFIS) · Effective Jan 23, 2006 - [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 2004-19-01](https://openairdocs.org/ad/2004-19-01.md): Upper shoulder harness adjusters · Effective Nov 1, 2004 · Supersedes AD 86-26-04 - [AD 2002-26-03](https://openairdocs.org/ad/2002-26-03.md): Brackett single screen air filter · Effective Feb 18, 2003 - [AD 2002-07-01](https://openairdocs.org/ad/2002-07-01.md): Horizontal Stabilizer Attachment Reinforcement Brackets · Effective May 13, 2002 - [AD 2000-06-01](https://openairdocs.org/ad/2000-06-01.md): Fuel Strainer Assembly · Effective May 5, 2000 - [AD 98-21-21 R1](https://openairdocs.org/ad/98-21-21-R1.md): Electric Inflatable Door Seals · Effective May 1, 2000 · Supersedes AD 98-21-21 - [AD 98-25-02](https://openairdocs.org/ad/98-25-02.md): Top-mounted Antenna · Effective Dec 22, 1998 - [AD 98-20-33](https://openairdocs.org/ad/98-20-33.md): AFM - Limitation Section - Icing · Effective Nov 17, 1998 - [AD 98-05-14 R1](https://openairdocs.org/ad/98-05-14-R1.md): AFM - Limitations Section - Icing · Effective Sep 22, 1998 · Supersedes AD 98-05-14 - [AD 98-14-03](https://openairdocs.org/ad/98-14-03.md): Transponders · Effective Aug 16, 1998 - [AD 97-01-13](https://openairdocs.org/ad/97-01-13.md): Fuel, Oil and Hydraulic Hoses · Effective Feb 3, 1997 - [AD 96-12-22](https://openairdocs.org/ad/96-12-22.md): Full Flow Engine Oil Adapter · Effective Jul 31, 1996 - [AD 94-12-08](https://openairdocs.org/ad/94-12-08.md): Flight Manual Revision · Effective Jul 22, 1994 - [AD 93-13-09](https://openairdocs.org/ad/93-13-09.md): Air Induction Hose · Effective Aug 13, 1993 - [AD 91-22-01](https://openairdocs.org/ad/91-22-01.md): Electrical Wires · Effective Nov 4, 1991 - [AD 88-25-04](https://openairdocs.org/ad/88-25-04.md): AFM/POH Changes - Magneto · Effective Dec 26, 1988 - [AD 88-22-07](https://openairdocs.org/ad/88-22-07.md): Hose Assemblies · Effective Nov 24, 1988 - [AD 84-10-01 R1](https://openairdocs.org/ad/84-10-01-R1.md): Bladder Fuel Cells · Effective Jul 5, 1988 - [AD 79-10-14 R1](https://openairdocs.org/ad/79-10-14-R1.md): Fuel Tank Venting · Effective May 30, 1988 - [AD 86-24-07](https://openairdocs.org/ad/86-24-07.md): Engine Controls Installation · Effective Jan 7, 1987 - [AD 71-09-07 R1](https://openairdocs.org/ad/71-09-07-R1.md): Exhaust Gases Entering Cabin · Effective Nov 26, 1986 - [AD 86-19-11](https://openairdocs.org/ad/86-19-11.md): Contaminated Fuel · Effective Oct 4, 1986 - [AD 85-23-07](https://openairdocs.org/ad/85-23-07.md): Autopilot Systems · Effective Jan 27, 1986 - [AD 76-14-07 R2](https://openairdocs.org/ad/76-14-07-R2.md): Landing Gear Saddles · Effective Aug 28, 1985 - [AD 85-11-07 R1](https://openairdocs.org/ad/85-11-07-R1.md): Turbocharger Oil Reservoir · Effective Aug 9, 1985 - [AD 85-10-02](https://openairdocs.org/ad/85-10-02.md): Engine Induction Airbox · Effective Jun 20, 1985 - [AD 85-03-01](https://openairdocs.org/ad/85-03-01.md): Throttle and Mixture Controls · Effective Mar 15, 1985 - [AD 85-02-07](https://openairdocs.org/ad/85-02-07.md): Fuel Selector · Effective Mar 6, 1985 - [AD 72-03-03 R3](https://openairdocs.org/ad/72-03-03-R3.md): Wing Flap Actuators Jack Screw · Effective Oct 15, 1984 - [AD 81-23-03 R2](https://openairdocs.org/ad/81-23-03-R2.md): Engine Exhaust System · Effective Nov 15, 1982 - [AD 82-06-10](https://openairdocs.org/ad/82-06-10.md): Vacuum-Driven-Attitude Instruments · Effective Apr 15, 1982 - [AD 80-25-07 R1](https://openairdocs.org/ad/80-25-07-R1.md): Oil Coolers · Effective Sep 24, 1981 - [AD 81-19-04](https://openairdocs.org/ad/81-19-04.md): Hose Assembly · Effective Sep 17, 1981 - [AD 81-15-05](https://openairdocs.org/ad/81-15-05.md): Engine and Airplane Modifications · Effective Jul 27, 1981 - [AD 81-15-03](https://openairdocs.org/ad/81-15-03.md): Engine Inlet Air Filters · Effective Jul 20, 1981 Next page: https://openairdocs.org/tcds/3A21/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 = '3A21') ORDER BY d.status = 'Historical', coalesce(d.effective_date, d.publication_date) DESC ``` This list as a web page: https://openairdocs.org/tcds/3A21/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.