# Airworthiness directives: TCDS H9EU

A list on [TCDS H9EU](https://openairdocs.org/tcds/H9EU.md).

ADs whose products are models on this data sheet, matched by model and maker. Those in force first, newest first.

Page 1 of 4 · 191 ADs

- [AD 2026-20-03](https://openairdocs.org/ad/2026-20-03.md): Placards and Markings · Effective Nov 5, 2026
- [AD 2026-19-02](https://openairdocs.org/ad/2026-19-02.md): Main rotor blades · Effective Nov 2, 2026
- [AD 2026-16-10](https://openairdocs.org/ad/2026-16-10.md): Tail rotor drive shaft · Effective Sep 18, 2026 · Supersedes AD 2023-25-14
- [AD 2026-16-05](https://openairdocs.org/ad/2026-16-05.md): Hydraulic power system · Effective Sep 17, 2026
- [AD 2026-16-01](https://openairdocs.org/ad/2026-16-01.md): Main rotor drive · Effective Sep 10, 2026
- [AD 2026-14-02](https://openairdocs.org/ad/2026-14-02.md): Indication/Recording System · Effective Aug 14, 2026
- [AD 2026-12-10](https://openairdocs.org/ad/2026-12-10.md): Equipment/Furnishings · Effective Aug 3, 2026
- [AD 2026-09-15](https://openairdocs.org/ad/2026-09-15.md): Tail rotor head · Effective Jul 21, 2026 · Supersedes AD 2023-01-04
- [AD 2026-12-08](https://openairdocs.org/ad/2026-12-08.md): Time Limits/Maintenance Checks · Effective Jul 21, 2026
- [AD 2026-12-09](https://openairdocs.org/ad/2026-12-09.md): Time Limits/Maintenance Checks · Effective Jul 21, 2026 · Supersedes AD 2022-11-08
- [AD 2026-12-03](https://openairdocs.org/ad/2026-12-03.md): Main rotor gearbox · Effective Jul 14, 2026 · Supersedes AD 2025-06-04
- [AD 2026-07-12](https://openairdocs.org/ad/2026-07-12.md): Main rotor transmission mount · Effective Apr 29, 2026
- [AD 2026-01-08](https://openairdocs.org/ad/2026-01-08.md): Tail Rotor Drive · Effective Feb 2, 2026 · Supersedes AD 2025-23-52
- [AD 2025-24-04](https://openairdocs.org/ad/2025-24-04.md): Vertical Stabilizer, Spar/Rib Structure · Effective Jan 12, 2026 · Supersedes AD 2021-20-16
- [AD 2025-24-06](https://openairdocs.org/ad/2025-24-06.md): Cabin Equipment/Furnishings · Effective Jan 12, 2026
- [AD 2025-18-13](https://openairdocs.org/ad/2025-18-13.md): Engine Controls · Effective Oct 23, 2025 · Supersedes AD 2020-24-07
- [AD 2025-17-14](https://openairdocs.org/ad/2025-17-14.md): Tail Rotor Drive System · Effective Oct 7, 2025
- [AD 2025-17-02](https://openairdocs.org/ad/2025-17-02.md): Emergency Flotation Section · Effective Sep 26, 2025
- [AD 2025-16-08](https://openairdocs.org/ad/2025-16-08.md): Tail Rotor Blades · Effective Sep 22, 2025
- [AD 2025-10-01](https://openairdocs.org/ad/2025-10-01.md): Cabin Equipment/Furnishings · Effective Jul 11, 2025
- [AD 2025-09-13](https://openairdocs.org/ad/2025-09-13.md): Doors · Effective Jul 7, 2025
- [AD 2024-20-07](https://openairdocs.org/ad/2024-20-07.md): Emergency Equipment; Emergency Flotation Section · Effective Dec 5, 2024
- [AD 2024-15-08](https://openairdocs.org/ad/2024-15-08.md): Main Rotor Blades · Effective Oct 15, 2024
- [AD 2023-23-01](https://openairdocs.org/ad/2023-23-01.md): Fuselage Structure · Effective Nov 29, 2023 · Supersedes AD 2022-01-05
- [AD 2023-14-06](https://openairdocs.org/ad/2023-14-06.md): Main Landing Gear Strut, Axle, Truck · Effective Sep 8, 2023
- [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 2022-10-51](https://openairdocs.org/ad/2022-10-51.md): Flight Control System · Emergency AD · Effective Jun 7, 2022
- [AD 2022-06-17](https://openairdocs.org/ad/2022-06-17.md): Main Rotor Drive System · Effective May 9, 2022
- [AD 2022-05-10](https://openairdocs.org/ad/2022-05-10.md): Cabin Equipment/Furnishings · Effective Apr 20, 2022
- [AD 2022-05-02](https://openairdocs.org/ad/2022-05-02.md): Engine Fuel Control/Turbine Engines · Effective Mar 30, 2022 · Supersedes AD 2021-11-25
- [AD 2021-03-16 R1](https://openairdocs.org/ad/2021-03-16-R1.md): Passenger/Crew Doors · Effective Mar 24, 2022 · Supersedes AD 2021-03-16
- [AD 2022-01-01](https://openairdocs.org/ad/2022-01-01.md): Main Rotor System · Effective Mar 7, 2022
- [AD 2022-02-04](https://openairdocs.org/ad/2022-02-04.md): Hydraulic Power System Wiring · Effective Feb 25, 2022
- [AD 2021-17-17](https://openairdocs.org/ad/2021-17-17.md): Cabin Equipment/Furnishings · Effective Nov 22, 2021
- [AD 2021-19-09](https://openairdocs.org/ad/2021-19-09.md): Cabin Equipment/Furnishings · Effective Nov 4, 2021 · Supersedes AD 2020-24-03
- [AD 2021-19-02](https://openairdocs.org/ad/2021-19-02.md): Rotorcraft flight control · Effective Nov 1, 2021
- [AD 2021-16-16](https://openairdocs.org/ad/2021-16-16.md): Rotorcraft Flight Control · Effective Oct 13, 2021
- [AD 2021-16-11](https://openairdocs.org/ad/2021-16-11.md): Tail Rotor Control System · Effective Oct 6, 2021
- [AD 2021-14-07](https://openairdocs.org/ad/2021-14-07.md): Cabin Equipment/Furnishings · Effective Aug 19, 2021 · Supersedes AD 2003-25-01
- [AD 2021-10-25](https://openairdocs.org/ad/2021-10-25.md): Tail rotor blades · Effective Jul 6, 2021
- [AD 2021-09-05](https://openairdocs.org/ad/2021-09-05.md): Rotorcraft Tail Boom · Effective Jun 2, 2021 · Supersedes AD 2016-08-20
- [AD 2021-07-15](https://openairdocs.org/ad/2021-07-15.md): Tail Rotor Drive Shaft · Effective May 7, 2021 · Supersedes AD 82-20-05
- [AD 2021-05-09](https://openairdocs.org/ad/2021-05-09.md): Tail Rotor Control System · Effective Apr 16, 2021 · Supersedes AD 2018-15-02
- [AD 2021-04-13](https://openairdocs.org/ad/2021-04-13.md): Main Rotor Mast Inner Race Rings · Effective Apr 14, 2021
- [AD 2021-04-08](https://openairdocs.org/ad/2021-04-08.md): Engine Control System Wiring · Effective Apr 1, 2021
- [AD 2021-04-17](https://openairdocs.org/ad/2021-04-17.md): Tail Rotor Blades · Effective Mar 23, 2021
- [AD 2020-25-11](https://openairdocs.org/ad/2020-25-11.md): Doors · Effective Jan 21, 2021 · Supersedes AD 2014-12-12
- [AD 2020-23-09](https://openairdocs.org/ad/2020-23-09.md): Doors · Effective Dec 24, 2020
- [AD 2020-22-20](https://openairdocs.org/ad/2020-22-20.md): Main Rotor Gearbox · Effective Dec 14, 2020
- [AD 2020-20-03](https://openairdocs.org/ad/2020-20-03.md): Main Rotor Drive Indicating System · Effective Nov 3, 2020

Next page: https://openairdocs.org/tcds/H9EU/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 = 'H9EU')
ORDER BY d.status = 'Historical', coalesce(d.effective_date, d.publication_date) DESC
```

This list as a web page: https://openairdocs.org/tcds/H9EU/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.