# Airworthiness directives that may apply: N142SC A list on [N142SC](https://openairdocs.org/aircraft/N142SC.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 2026-19-01](https://openairdocs.org/ad/2026-19-01.md): Rotorcraft flight control · Effective Oct 20, 2026 · Supersedes AD 2024-23-06 - [AD 2025-17-11](https://openairdocs.org/ad/2025-17-11.md): tail rotor control system · Effective Oct 10, 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 2020-18-20](https://openairdocs.org/ad/2020-18-20.md): Main Rotor Blade · Effective Oct 28, 2020 - [AD 2019-05-04](https://openairdocs.org/ad/2019-05-04.md): Main Rotor Blade · Effective Apr 17, 2019 - [AD 2016-05-09](https://openairdocs.org/ad/2016-05-09.md): Fuel Quantity Indicating System · Effective Apr 15, 2016 - [AD 2016-04-15](https://openairdocs.org/ad/2016-04-15.md): Main Rotor Blades · Effective Mar 31, 2016 - [AD 2013-19-24](https://openairdocs.org/ad/2013-19-24.md): Tail Rotor Blades · Effective Dec 5, 2013 · Supersedes AD 2003-08-51 - [AD 2008-15-03](https://openairdocs.org/ad/2008-15-03.md): Tail rotor (T/R) blade abrasion strip · Effective Sep 3, 2008 - [AD 2007-12-23](https://openairdocs.org/ad/2007-12-23.md): Landing gear fairing support assembly · Effective Jul 19, 2007 - [AD 2007-09-51](https://openairdocs.org/ad/2007-09-51.md): Tail rotor blade · Emergency AD · Effective Jul 5, 2007 - [AD 2000-25-52](https://openairdocs.org/ad/2000-25-52.md): Main rotor blade · Emergency AD · Effective Feb 6, 2001 · Supersedes AD 2000-24-51 - [AD 98-15-26](https://openairdocs.org/ad/98-15-26.md): Main Rotor Blade Cracking Inspection · Effective Aug 3, 1998 - [AD 98-09-02](https://openairdocs.org/ad/98-09-02.md): Overrunning Clutch Assembly Outer Race · Effective May 6, 1998 - [AD 96-10-09](https://openairdocs.org/ad/96-10-09.md): Blade Root End Crack Inspection · Effective May 29, 1996 - [AD 95-03-13](https://openairdocs.org/ad/95-03-13.md): Main Rotor Blade Attach Lugs · Effective Mar 21, 1995 - [AD 95-03-11](https://openairdocs.org/ad/95-03-11.md): Tail Rotor Bade Inspection · Effective Mar 1, 1995 - [AD 94-18-08](https://openairdocs.org/ad/94-18-08.md): Tail Rotor Blade Inspection · Effective Jan 13, 1992 - [AD 91-08-02](https://openairdocs.org/ad/91-08-02.md): Tail Rotor Blades · Effective May 3, 1991 - [AD 81-26-01 R1](https://openairdocs.org/ad/81-26-01-R1.md): Main Rotor Drive Shaft · Effective Oct 31, 1990 - [AD 90-19-02](https://openairdocs.org/ad/90-19-02.md): Clutch Assembly · Effective Oct 5, 1990 - [AD 90-01-08](https://openairdocs.org/ad/90-01-08.md): Driveshaft Coupling · Effective Feb 5, 1990 - [AD 89-23-14](https://openairdocs.org/ad/89-23-14.md): Main Rotor Collective Tubes · Effective Dec 4, 1989 - [AD 89-11-05](https://openairdocs.org/ad/89-11-05.md): Tail Rotor Strap Pack Assemblies · Effective Jun 6, 1989 - [AD 86-20-07](https://openairdocs.org/ad/86-20-07.md): Tail Rotor Drive Shaft · Effective Oct 24, 1986 - [AD 86-01-04](https://openairdocs.org/ad/86-01-04.md): Tail Rotor Blades · Effective Feb 14, 1986 - [AD 84-01-02 R1](https://openairdocs.org/ad/84-01-02-R1.md): Rotor System Control · Effective Apr 9, 1984 - [AD 82-14-01](https://openairdocs.org/ad/82-14-01.md): With Chadwick C-20 Auxiliary Fuel System · Effective Jul 30, 1982 - [AD 82-01-08](https://openairdocs.org/ad/82-01-08.md): Lever Control Rod · Effective Jan 7, 1982 - [AD 80-25-01](https://openairdocs.org/ad/80-25-01.md): Tail Rotor Drive Shaft · Effective Dec 4, 1980 - [AD 80-24-04](https://openairdocs.org/ad/80-24-04.md): Placard -Front Seat Occupancy · Effective Dec 4, 1980 - [AD 80-08-04](https://openairdocs.org/ad/80-08-04.md): Auxiliary Fuel System · Effective Apr 17, 1980 - [AD 77-21-04](https://openairdocs.org/ad/77-21-04.md): Clutch and Shaft Assembly · Effective Aug 31, 1977 - [AD 75-22-03](https://openairdocs.org/ad/75-22-03.md): Tail Rotor Drive Shaft · Effective Oct 24, 1975 - [AD 75-22-04](https://openairdocs.org/ad/75-22-04.md): Tail Rotor Blades · Effective Oct 23, 1975 - [AD 75-10-04](https://openairdocs.org/ad/75-10-04.md): Tail Rotor Blades · Effective Apr 17, 1975 - [AD 74-20-04](https://openairdocs.org/ad/74-20-04.md): Main Rotor Blade · Effective Sep 25, 1974 - [AD 74-07-02](https://openairdocs.org/ad/74-07-02.md): Aluminum Tail Rotor Blades · Effective Mar 26, 1974 - [AD 72-16-09](https://openairdocs.org/ad/72-16-09.md): Tail rotor input gear shaft assys · Effective Aug 8, 1972 - [AD 70-16-07](https://openairdocs.org/ad/70-16-07.md): Main Rotor Blade · Effective Aug 8, 1970 - [AD 2024-23-06](https://openairdocs.org/ad/2024-23-06.md): Rotorcraft Flight Control · Historical · Effective Dec 24, 2024 · Replaced by AD 2026-19-01 - [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 2003-24-01](https://openairdocs.org/ad/2003-24-01.md): Main rotor blade (blade) · Historical · Effective Dec 10, 2003 · Replaced by AD 2005-21-02 - [AD 2003-08-51](https://openairdocs.org/ad/2003-08-51.md): Tail rotor blade pitch horn (pitch horn) · Historical · Effective Jul 17, 2003 · Replaced by AD 2013-19-24 - [AD 2000-24-51](https://openairdocs.org/ad/2000-24-51.md): Blade Spar · Historical · Replaced by AD 2000-25-52 ## 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 = '4470503') 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/N142SC/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.