# Airworthiness directives: TCDS A27NM A list on [TCDS A27NM](https://openairdocs.org/tcds/A27NM.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 · 92 ADs - [AD 2026-13-02](https://openairdocs.org/ad/2026-13-02.md): Navigation · Effective Jul 1, 2026 - [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 2018-23-12](https://openairdocs.org/ad/2018-23-12.md): Equipment/furnishings · Effective Dec 28, 2018 - [AD 2015-16-04](https://openairdocs.org/ad/2015-16-04.md): Fire Protection · Effective Sep 15, 2015 - [AD 2015-15-14](https://openairdocs.org/ad/2015-15-14.md): Fire Protection · Effective Aug 19, 2015 - [AD 2011-05-10](https://openairdocs.org/ad/2011-05-10.md): Flight Controls · Effective Mar 25, 2011 - [AD 2010-05-05](https://openairdocs.org/ad/2010-05-05.md): Standard Practices/Procedures · Effective Mar 12, 2010 - [AD 2007-15-08](https://openairdocs.org/ad/2007-15-08.md): Airworthiness Limitations Section (ALS) · Effective Aug 8, 2007 · Supersedes AD 2006-18-09 - [AD 2005-20-19](https://openairdocs.org/ad/2005-20-19.md): Engine sub-frame tubes · Effective Oct 21, 2005 - [AD 2005-20-22](https://openairdocs.org/ad/2005-20-22.md): Fuselage and wing structure · Effective Oct 21, 2005 - [AD 2005-20-09](https://openairdocs.org/ad/2005-20-09.md): Aft isolators to the engine subframe · Effective Oct 19, 2005 - [AD 2005-19-26](https://openairdocs.org/ad/2005-19-26.md): Fuel cross feed system · Effective Oct 12, 2005 - [AD 2003-12-02](https://openairdocs.org/ad/2003-12-02.md): Nose landing gear (NLG) · Effective Jul 17, 2003 - [AD 2003-11-06](https://openairdocs.org/ad/2003-11-06.md): Fuel Pipes Within the Fuel 'Float Switch' Test Pipelines · Effective Jul 3, 2003 - [AD 2002-22-12](https://openairdocs.org/ad/2002-22-12.md): Titeflex hoses · Effective Dec 13, 2002 - [AD 2000-21-05](https://openairdocs.org/ad/2000-21-05.md): Main Landing Gear · Effective Nov 6, 2000 - [AD 2000-11-24](https://openairdocs.org/ad/2000-11-24.md): Downlock Support Assembly · Effective Jul 18, 2000 - [AD 99-23-22 R2](https://openairdocs.org/ad/99-23-22-R2.md): Transponders · Effective Apr 20, 2000 · Supersedes AD 99-23-22 R1 - [AD 2000-04-07](https://openairdocs.org/ad/2000-04-07.md): Circuit Breaker of the Engine De-Ice Panel · Effective Mar 30, 2000 - [AD 2000-01-08](https://openairdocs.org/ad/2000-01-08.md): Rudder Standby Control System (SCS) · Effective Feb 16, 2000 - [AD 99-26-17](https://openairdocs.org/ad/99-26-17.md): Engine Intake De-icing System · Effective Feb 1, 2000 - [AD 99-19-11](https://openairdocs.org/ad/99-19-11.md): AFM - Ice Protection Systems · Effective Dec 27, 1999 - [AD 99-22-03](https://openairdocs.org/ad/99-22-03.md): Chafing Within Engine Nacelle · Effective Nov 26, 1999 - [AD 99-21-16](https://openairdocs.org/ad/99-21-16.md): Weight on Wheels Microswitch Harness Subassembly · Effective Nov 12, 1999 - [AD 99-19-35](https://openairdocs.org/ad/99-19-35.md): Nose Landing Gear Compensator · Effective Oct 27, 1999 - [AD 99-12-06](https://openairdocs.org/ad/99-12-06.md): Navigation Receivers · Effective Jul 23, 1999 - [AD 98-25-08](https://openairdocs.org/ad/98-25-08.md): Nosewheel Steering Control Cables · Effective Jan 14, 1999 - [AD 98-14-06](https://openairdocs.org/ad/98-14-06.md): Spring Strut Assembly of Forward Door of Main Landing Gear · Effective Aug 5, 1998 - [AD 98-12-25](https://openairdocs.org/ad/98-12-25.md): Main Landing Gear Operating Mechanism · Effective Jul 15, 1998 - [AD 98-12-27](https://openairdocs.org/ad/98-12-27.md): Inspect Splined Operating Shaft of Door Handles · Effective Jul 15, 1998 - [AD 98-09-05](https://openairdocs.org/ad/98-09-05.md): Inspect Brake Hydraulic Accumulator · Effective May 29, 1998 - [AD 98-07-01](https://openairdocs.org/ad/98-07-01.md): Inspect Engine Power Cables · Effective Apr 27, 1998 - [AD 98-06-21](https://openairdocs.org/ad/98-06-21.md): Inspect Brake Units of Main Landing Gear · Effective Apr 23, 1998 - [AD 98-05-12](https://openairdocs.org/ad/98-05-12.md): AFM - Limitations Section - Roll-Over Lever · Effective Apr 8, 1998 - [AD 97-25-13](https://openairdocs.org/ad/97-25-13.md): Inspect Main Hydraulic Accumulator for Corrosion · Effective Jan 14, 1998 - [AD 97-24-13](https://openairdocs.org/ad/97-24-13.md): Inspect Flap Drive Torque Tubes · Effective Jan 2, 1998 - [AD 97-16-09](https://openairdocs.org/ad/97-16-09.md): Hydraulic System · Effective Sep 22, 1997 - [AD 97-09-10](https://openairdocs.org/ad/97-09-10.md): Standby Elevator Control System · Effective Jun 6, 1997 - [AD 97-02-18](https://openairdocs.org/ad/97-02-18.md): Antenna Mounting Reinforcing Plates · Effective Mar 4, 1997 - [AD 96-22-02](https://openairdocs.org/ad/96-22-02.md): Inspect Right and Left Ram Air Inlet Ducts · Effective Dec 11, 1996 - [AD 96-09-18](https://openairdocs.org/ad/96-09-18.md): AFM - Icing · Effective Jun 11, 1996 - [AD 96-03-06](https://openairdocs.org/ad/96-03-06.md): Inspect Gussets of Rear Passenger Door · Effective Mar 13, 1996 - [AD 95-22-02](https://openairdocs.org/ad/95-22-02.md): Inspect Main Landing Gear Wheels · Effective Nov 29, 1995 - [AD 95-21-18](https://openairdocs.org/ad/95-21-18.md): NLG Bracket Attachment Assembly · Effective Nov 17, 1995 - [AD 95-19-06](https://openairdocs.org/ad/95-19-06.md): Inspect Rib Boom Angles For Cracks · Effective Nov 1, 1995 - [AD 95-19-14](https://openairdocs.org/ad/95-19-14.md): Passenger and Aft Baggage Door · Effective Oct 20, 1995 - [AD 95-17-04](https://openairdocs.org/ad/95-17-04.md): AFM Limitations - Freezing Precipitation · Effective Sep 13, 1995 - [AD 95-16-09](https://openairdocs.org/ad/95-16-09.md): Oil Filter Switches · Effective Aug 18, 1995 - [AD 95-12-13](https://openairdocs.org/ad/95-12-13.md): De-Ice Timers for Engines · Effective Jul 26, 1995 - [AD 95-02-09](https://openairdocs.org/ad/95-02-09.md): Electrical Power · Effective Mar 16, 1995 Next page: https://openairdocs.org/tcds/A27NM/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 = 'A27NM') ORDER BY d.status = 'Historical', coalesce(d.effective_date, d.publication_date) DESC ``` This list as a web page: https://openairdocs.org/tcds/A27NM/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.