# Airworthiness directives, 2021

FAA airworthiness directives effective in 2021: 457 ADs with their full text, status and the aircraft they apply to.

Page 1 of 10 · 457 ADs

- [AD 2021-23-51](https://openairdocs.org/ad/2021-23-51.md): Turbine Engine Compression Section · General Electric CF34-8C1, CF34-8C5, CF34-8C5A1 and 10 more · Emergency AD · Effective Dec 29, 2021
- [AD 2021-22-24](https://openairdocs.org/ad/2021-22-24.md): Periodic Inspections · MHI RJ Aviation ULC CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 4 more · Effective Dec 29, 2021
- [AD 2021-22-23](https://openairdocs.org/ad/2021-22-23.md): Wings · Boeing 757-200 Series, 757-200PF Series, 757-200CB Series and 1 more · Effective Dec 29, 2021
- [AD 2021-22-18](https://openairdocs.org/ad/2021-22-18.md): Doors · Airbus A350-941 and A350-1041 · Effective Dec 29, 2021
- [AD 2021-22-17](https://openairdocs.org/ad/2021-22-17.md): Fuselage · Airbus Canada Limited Partnership BD-500-1A11 and BD-500-1A10 · Effective Dec 29, 2021
- [AD 2021-26-01](https://openairdocs.org/ad/2021-26-01.md): Tail Rotor Control System · Bell Textron Canada 505 with STC SR09758DS · Effective Dec 28, 2021
- [AD 2021-22-19](https://openairdocs.org/ad/2021-22-19.md): Turbine Engine Compressor Section · Pratt & Whitney JT8D-209, JT8D-217, JT8D-217A and 2 more · Effective Dec 28, 2021 · Supersedes AD 2011-07-02
- [AD 2021-21-05](https://openairdocs.org/ad/2021-21-05.md): Engine Controls · General Electric GEnx-1B64, GEnx-1B64/P1, GEnx-1B64/P2 and 17 more · Effective Dec 28, 2021
- [AD 2021-24-10](https://openairdocs.org/ad/2021-24-10.md): Reciprocating Engine Oil System · Austro Engine E4 and E4P · Effective Dec 27, 2021 · Supersedes AD 2021-09-04
- [AD 2021-22-10](https://openairdocs.org/ad/2021-22-10.md): Tail Rotor Gearbox · Leonardo A109E · Effective Dec 27, 2021
- [AD 2021-22-09](https://openairdocs.org/ad/2021-22-09.md): Engine Drains · Leonardo AW189 · Effective Dec 27, 2021
- [AD 2021-22-04](https://openairdocs.org/ad/2021-22-04.md): Wings · Airbus A318-111, A318-112, A318-121 and 24 more · Historical · Effective Dec 27, 2021 · Replaced by AD 2022-24-13
- [AD 2021-20-09](https://openairdocs.org/ad/2021-20-09.md): Time Limits/Maintenance Checks · ATR - GIE Avions de Transport Régional ATR72-101, ATR72-102, ATR72-201 and 4 more · Historical · Effective Dec 27, 2021 · Replaced by AD 2023-03-09
- [AD 2021-22-03](https://openairdocs.org/ad/2021-22-03.md): Nose/Tail Landing Gear Attach Section · Diamond Aircraft Industries DA 42, DA 42 M-NG and DA 42 NG · Effective Dec 21, 2021
- [AD 2021-21-02](https://openairdocs.org/ad/2021-21-02.md): Electrical Power · Airbus A340-211, A340-212, A340-213 and 8 more · Historical · Effective Dec 20, 2021 · Replaced by AD 2024-11-01
- [AD 2021-18-17](https://openairdocs.org/ad/2021-18-17.md): Auto flight · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more · Effective Dec 20, 2021 · Supersedes AD 2012-21-08
- [AD 2021-22-14](https://openairdocs.org/ad/2021-22-14.md): Turbine Section · Pratt & Whitney Division PW4164, PW4164-1D, PW4168 and 4 more · Effective Dec 17, 2021 · Supersedes AD 2021-05-16
- [AD 2021-21-06](https://openairdocs.org/ad/2021-21-06.md): Powerplant System · Helicopteres Guimbal CABRI G2 · Effective Dec 17, 2021
- [AD 2021-21-12](https://openairdocs.org/ad/2021-21-12.md): Turbine Engine Compressor Section · Rolls-Royce Deutschland BR700-710A2-20 · Effective Dec 13, 2021
- [AD 2021-21-09](https://openairdocs.org/ad/2021-21-09.md): Fuselage · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 2 more · Effective Dec 13, 2021 · Supersedes AD 2005-05-18
- [AD 2021-21-11](https://openairdocs.org/ad/2021-21-11.md): Power Plant System · Pacific Aerospace 750XL · Effective Dec 10, 2021
- [AD 2021-21-10](https://openairdocs.org/ad/2021-21-10.md): Aircraft Fuel System · Pacific Aerospace 750XL · Effective Dec 10, 2021
- [AD 2021-21-08](https://openairdocs.org/ad/2021-21-08.md): Ice/Rain Protection System Wiring, Tail Rotor Blades · Leonardo AB139 and AW139 · Effective Dec 10, 2021
- [AD 2021-21-03](https://openairdocs.org/ad/2021-21-03.md): Rotorcraft Flight Control, Rotorcraft Servo System · Leonardo A109A, A109A II, A109C and 6 more · Effective Dec 10, 2021
- [AD 2021-21-01](https://openairdocs.org/ad/2021-21-01.md): Cabin Equipment/Furnishings · Airbus Helicopters Deutschland EC135P1, EC135P2, EC135P2+ and 5 more · Effective Dec 10, 2021 · Supersedes AD 2019-05-06
- [AD 2021-24-06](https://openairdocs.org/ad/2021-24-06.md): Fuselage Structure · Airbus Helicopters EC130T2 · Historical · Effective Dec 9, 2021 · Replaced by AD 2022-01-05
- [AD 2021-23-13](https://openairdocs.org/ad/2021-23-13.md): Ground Proximity System · Airbus Helicopters K-225, K-190A, K-240 and 237 more · Historical · Effective Dec 9, 2021 · Replaced by AD 2023-11-07
- [AD 2021-23-12](https://openairdocs.org/ad/2021-23-12.md): Indicating/Recording System, Navigation · Boeing N/A · Historical · Effective Dec 9, 2021 · Replaced by AD 2023-10-02
- [AD 2021-21-04](https://openairdocs.org/ad/2021-21-04.md): Powerplant · Bombardier BD-700-1A10 and BD-700-1A11 · Effective Dec 8, 2021
- [AD 2021-19-19](https://openairdocs.org/ad/2021-19-19.md): Wings · Boeing 737-9 · Effective Dec 8, 2021
- [AD 2021-16-18](https://openairdocs.org/ad/2021-16-18.md): Fuel · Airbus A330-223F, A330-243F, A330-201 and 23 more · Historical · Effective Dec 8, 2021 · Replaced by AD 2023-13-04
- [AD 2021-24-09](https://openairdocs.org/ad/2021-24-09.md): Main Rotor Head · Bell Textron Canada 430 · Historical · Effective Dec 7, 2021 · Replaced by AD 2025-09-03
- [AD 2021-23-03](https://openairdocs.org/ad/2021-23-03.md): Landing Gear · De Havilland Aircraft of Canada DHC-8-400, DHC-8-401 and DHC-8-402 · Effective Dec 6, 2021
- [AD 2021-22-06](https://openairdocs.org/ad/2021-22-06.md): Time Limits/Maintenance Checks · Boeing 747-400F Series with STC ST04393NY · Effective Dec 6, 2021
- [AD 2021-22-22](https://openairdocs.org/ad/2021-22-22.md): Nose/Tail Landing Gear · Costruzioni Aeronautiche Tecnam P2006T · Effective Dec 3, 2021
- [AD 2021-21-13](https://openairdocs.org/ad/2021-21-13.md): Engine (Turbine/Turboprop) · Rolls-Royce Deutschland Trent 1000-AE, Trent 1000-A, Trent 1000-C and 5 more · Historical · Effective Dec 2, 2021 · Replaced by AD 2023-21-08
- [AD 2021-20-19](https://openairdocs.org/ad/2021-20-19.md): Fuel · Boeing 767-200 Series, 767-300 Series, 767-300F Series and 1 more · Effective Nov 30, 2021
- [AD 2021-23-05](https://openairdocs.org/ad/2021-23-05.md): Hydraulic power · Airbus A319-171N, A320-271N, A320-272N and 5 more · Effective Nov 23, 2021 · Supersedes AD 2021-18-08
- [AD 2021-24-07](https://openairdocs.org/ad/2021-24-07.md): Fire protection · ATR - GIE Avions de Transport Régional ATR42-200, ATR42-300, ATR42-320 and 8 more · Effective Nov 22, 2021
- [AD 2021-20-20](https://openairdocs.org/ad/2021-20-20.md): Pneumatic System · Pacific Aerospace 750XL · Effective Nov 22, 2021
- [AD 2021-20-17](https://openairdocs.org/ad/2021-20-17.md): Tail Rotor System · Leonardo AW169 and AW189 · Effective Nov 22, 2021 · Supersedes AD 2018-23-52
- [AD 2021-20-16](https://openairdocs.org/ad/2021-20-16.md): Vertical Stabilizer, Spar/Rib · Airbus Helicopters AS355E, AS355F, AS355F1 and 4 more · Historical · Effective Nov 22, 2021 · Replaced by AD 2025-24-04
- [AD 2021-20-12](https://openairdocs.org/ad/2021-20-12.md): Emergency Flotation Section · Leonardo AB139, AB412, AB412 EP and 1 more · Effective Nov 22, 2021
- [AD 2021-20-11](https://openairdocs.org/ad/2021-20-11.md): Rotorcraft Flight Control · Bell Textron Canada 429 · Effective Nov 22, 2021
- [AD 2021-20-10](https://openairdocs.org/ad/2021-20-10.md): Main Rotor Gearbox · Leonardo AB139 and AW139 · Effective Nov 22, 2021
- [AD 2021-20-06](https://openairdocs.org/ad/2021-20-06.md): Turbine section · Airbus Helicopters AS355E, AS355F, AS355F1 and 1 more · Effective Nov 22, 2021
- [AD 2021-20-05](https://openairdocs.org/ad/2021-20-05.md): Emergency Flotation Section, Emergency Equipment · Leonardo AW189 · Effective Nov 22, 2021
- [AD 2021-20-03](https://openairdocs.org/ad/2021-20-03.md): Rotorcraft Flight Control, Main Rotor Control · Leonardo AW169 · Effective Nov 22, 2021
- [AD 2021-19-17](https://openairdocs.org/ad/2021-19-17.md): Cabin Equipment/Furnishings, Passenger Compartment Equipment · Sikorsky S-92A · Effective Nov 22, 2021
- [AD 2021-17-17](https://openairdocs.org/ad/2021-17-17.md): Cabin Equipment/Furnishings · Airbus Helicopters EC135P3, EC135T3, MBB-BK 117 C-2 and 32 more · Effective Nov 22, 2021

Next page: https://openairdocs.org/ad.md?year=2021&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.makes, d.models, d.effective_date
FROM 'https://openairdocs.org/data/latest/faa_directive.parquet' d
WHERE year(coalesce(d.effective_date, d.publication_date, d.issue_date)) = 2021
ORDER BY coalesce(d.effective_date, d.publication_date, d.issue_date) DESC, d.ad_number DESC
```

This list as a web page: https://openairdocs.org/ad?year=2021

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