# Airworthiness directives: TCDS 4H11

A list on [TCDS 4H11](https://openairdocs.org/tcds/4H11.md).

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

- [AD 2025-15-02](https://openairdocs.org/ad/2025-15-02.md): Main Rotor Mast/Swashplate · Effective Sep 24, 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 2000-24-21](https://openairdocs.org/ad/2000-24-21.md): Control System Linkage · Effective Jan 10, 2001
- [AD 97-20-15](https://openairdocs.org/ad/97-20-15.md): Outboard Tension-Torsion Bar Pin · Effective Nov 12, 1997
- [AD 97-10-16](https://openairdocs.org/ad/97-10-16.md): Blade Spar Tube and Cuff Inspection · Effective Jun 27, 1997 · Supersedes AD 77-07-05, AD 77-07-05 R1
- [AD 90-15-01](https://openairdocs.org/ad/90-15-01.md): Tail Rotor Blade Assemblies · Effective Mar 7, 1991
- [AD 86-22-04](https://openairdocs.org/ad/86-22-04.md): Main Rotor Blades · Effective Nov 3, 1986
- [AD 86-17-02](https://openairdocs.org/ad/86-17-02.md): Main Rotor Blade Fork · Effective Aug 22, 1986
- [AD 84-19-08](https://openairdocs.org/ad/84-19-08.md): Engine Mount · Effective Sep 20, 1984
- [AD 83-25-02](https://openairdocs.org/ad/83-25-02.md): Main Rotor Blade Doublers · Effective Dec 29, 1983
- [AD 82-16-07](https://openairdocs.org/ad/82-16-07.md): Torsional Coupling Assemblies · Effective Oct 15, 1982
- [AD 82-13-04 R1](https://openairdocs.org/ad/82-13-04-R1.md): Torsional Couplings · Effective Sep 13, 1982
- [AD 82-15-02](https://openairdocs.org/ad/82-15-02.md): Main And Tail Rotors · Effective Jul 16, 1982
- [AD 81-18-02](https://openairdocs.org/ad/81-18-02.md): Tail Rotor Skin Cracks · Effective Sep 10, 1981
- [AD 81-17-03](https://openairdocs.org/ad/81-17-03.md): Main Transmission · Effective Aug 24, 1981
- [AD 81-09-08](https://openairdocs.org/ad/81-09-08.md): Main Rotor Blade · Effective Jun 25, 1981
- [AD 81-04-01](https://openairdocs.org/ad/81-04-01.md): Rudder Cable Assembly · Effective Feb 9, 1981
- [AD 80-23-02](https://openairdocs.org/ad/80-23-02.md): Turbine Power Conversions · Effective Nov 20, 1980
- [AD 80-19-02](https://openairdocs.org/ad/80-19-02.md): Turbine Power - Soloy Conversions · Effective Oct 11, 1980
- [AD 80-07-04](https://openairdocs.org/ad/80-07-04.md): Main Rotor Blade Anti-Node Bars · Effective Mar 31, 1980
- [AD 79-03-07](https://openairdocs.org/ad/79-03-07.md): Main Rotor Tachometer Generator · Effective Feb 21, 1979
- [AD 78-23-07](https://openairdocs.org/ad/78-23-07.md): Finite Life Components Listed in AD · Effective Dec 14, 1978
- [AD 78-22-08](https://openairdocs.org/ad/78-22-08.md): Flight/Engine Control · Effective Nov 30, 1978
- [AD 78-22-02](https://openairdocs.org/ad/78-22-02.md): Rotor Blade Retention System · Effective Oct 27, 1978
- [AD 78-18-03](https://openairdocs.org/ad/78-18-03.md): Drive Shaft · Effective Oct 6, 1978
- [AD 77-24-03](https://openairdocs.org/ad/77-24-03.md): Fuel Control Valve · Effective Jan 6, 1978
- [AD 75-10-01](https://openairdocs.org/ad/75-10-01.md): Rotor Drive System · Effective May 8, 1975
- [AD 61-05-04](https://openairdocs.org/ad/61-05-04.md): Main Transmission · Effective Jun 4, 1974
- [AD 74-04-03](https://openairdocs.org/ad/74-04-03.md): Main Rotor Drag Struts · Effective Feb 18, 1974
- [AD 73-20-03](https://openairdocs.org/ad/73-20-03.md): Main Rotor Hub · Effective Oct 30, 1973
- [AD 72-13-08](https://openairdocs.org/ad/72-13-08.md): Main Rotor Blades · Effective Oct 19, 1972
- [AD 71-25-08](https://openairdocs.org/ad/71-25-08.md): Inspect Main Rotor Blades · Effective Dec 14, 1971
- [AD 69-13-07](https://openairdocs.org/ad/69-13-07.md): Collective Yoke Support Brackets · Effective Apr 30, 1970
- [AD 69-08-08](https://openairdocs.org/ad/69-08-08.md): Tail Rotor Yoke · Effective Apr 23, 1969
- [AD 67-08-03](https://openairdocs.org/ad/67-08-03.md): Cyclic Control Bracket · Effective Mar 9, 1967
- [AD 66-22-04](https://openairdocs.org/ad/66-22-04.md): Mercury Clutches · Effective Sep 2, 1966
- [AD 64-11-02](https://openairdocs.org/ad/64-11-02.md): Tail Rotor Pinion Gears · Effective May 16, 1964
- [AD 2015-20-51](https://openairdocs.org/ad/2015-20-51.md): Model UH-12-series helicopters · Emergency AD
- [AD 59-05-05](https://openairdocs.org/ad/59-05-05.md): Cyclic Control Scissor Casting
- [AD 59-25-03](https://openairdocs.org/ad/59-25-03.md): Wobble Plate Screws
- [AD 62-06-03](https://openairdocs.org/ad/62-06-03.md): Transmission & Lubrication System Modification
- [AD 63-21-03](https://openairdocs.org/ad/63-21-03.md): Main Rotor Blades
- [AD 76-20-06](https://openairdocs.org/ad/76-20-06.md): Cable Freezing Control
- [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 77-07-05](https://openairdocs.org/ad/77-07-05.md): Control Rotor Blade Spar Tube and Cuff · Historical · Effective Jun 20, 1977 · Replaced by AD 97-10-16
- [AD 77-07-05 R1](https://openairdocs.org/ad/77-07-05-R1.md): Control Rotor Blade Spar Tube and Cuff · Historical · Effective Jun 20, 1977 · Replaced by AD 97-10-16

## 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 = '4H11')
ORDER BY d.status = 'Historical', coalesce(d.effective_date, d.publication_date) DESC
```

This list as a web page: https://openairdocs.org/tcds/4H11/ads

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