# Affected TCDS: AD 2026-04-11

A list on [AD 2026-04-11](https://openairdocs.org/ad/2026-04-11.md).

The type certificate data sheets for the models this AD names, matched by model and maker.

- [TCDS 1E10](https://openairdocs.org/tcds/1E10.md): Lycoming Engines · Names all 89 models: IO-360-C1D6, AEIO-360-B1G6, HIO-360-B1B and 86 more
- [TCDS 1E4](https://openairdocs.org/tcds/1E4.md): Lycoming Engines · Names all 81 models: IO-540-L1A5D, IO-540-L1C5, IO-540-M2A5D and 78 more
- [TCDS E-286](https://openairdocs.org/tcds/E-286.md): Lycoming Engines · Names all 72 models: LO-360-A1H6, O-360-C1C, O-360-C1A and 69 more
- [TCDS E-274](https://openairdocs.org/tcds/E-274.md): Lycoming Engines · Names all 60 models: O-320-H3BD, O-320-D2G, O-320-E2G and 57 more
- [TCDS E-295](https://openairdocs.org/tcds/E-295.md): Lycoming Engines · Names all 47 models: O-540-L3C5D, O-540-J2B5D, O-540-J1B5D and 44 more
- [TCDS E-223](https://openairdocs.org/tcds/E-223.md): Lycoming Engines · Names all 43 models: O-235-K2C, O-235-M3C, O-235-A and 40 more
- [TCDS E14EA](https://openairdocs.org/tcds/E14EA.md): Lycoming Engines · Names all 40 models: TIO-540-G1A, LTIO-540-N2BD, TIO-540-A1A and 37 more
- [TCDS 1E12](https://openairdocs.org/tcds/1E12.md): Lycoming Engines · Names all 32 models: AEIO-320-E1B, AEIO-320-D2B, AIO-320-C1B and 29 more
- [TCDS E-304](https://openairdocs.org/tcds/E-304.md): Lycoming Engines · Names all 21 models: VO-540-B2G, VO-540-B2A, VO-540-B2D and 18 more
- [TCDS E00006NY](https://openairdocs.org/tcds/E00006NY.md): Lycoming Engines · Names all 17 models: AEIO-390-A3B6, AEIO-390- A1A6, IO-390-A1A6 and 14 more
- [TCDS 1E15](https://openairdocs.org/tcds/1E15.md): Textron Lycoming Subsidiary of Textron Inc. · Names all 12 models: IO-720-B1A, IO-720-D1CD, IO-720-A1A and 9 more
- [TCDS 1E13](https://openairdocs.org/tcds/1E13.md): Lycoming Engines · Names all 11 models: TVO-435-D1B, TVO-435-A1A, TVO-435-E1A and 8 more
- [TCDS E-229](https://openairdocs.org/tcds/E-229.md): Lycoming Division AVCO Corporation · Names all 10 models: O-290-D2, O-290-D, O-290-B and 7 more
- [TCDS E-228](https://openairdocs.org/tcds/E-228.md): Lycoming Engines · Names 9 of 20 models: O-435-A, O-435-A2, O-435 and 6 more
- [TCDS E-279](https://openairdocs.org/tcds/E-279.md): Lycoming Engines · Names all 7 models: VO-435-A1A (O-435-21), VO-435-A1F, VO-435-A1C (O-435-23; -23A; -23B; -23C) and 4 more
- [TCDS E19EA](https://openairdocs.org/tcds/E19EA.md): Lycoming Engines · Names all 6 models: TIGO-541-C1A, TIGO-541-G1AD, TIGO-541-D1B and 3 more
- [TCDS E26EA](https://openairdocs.org/tcds/E26EA.md): Lycoming Engines · Names all 6 models: TO-360-C1A6D, TO-360-A1A6D, LTO-360-A1A6D and 3 more
- [TCDS E10EA](https://openairdocs.org/tcds/E10EA.md): Lycoming Engines · Names all 5 models: TIO-541-E1A4, TIO-541-E1B4, TIO-541-E1C4 and 2 more
- [TCDS 1E1](https://openairdocs.org/tcds/1E1.md): Lycoming Engines · Names all 4 models: IVO-360-A1A, VO-360-A1A, VO-360-B1A and VO-360-A1B
- [TCDS E16EA](https://openairdocs.org/tcds/E16EA.md): Lycoming Engines · Names all 4 models: TIO-360-A1B, TIO-360-A1A, TIO-360-C1A6D and TIO-360-A3B6
- [TCDS E-277](https://openairdocs.org/tcds/E-277.md): Lycoming Engines · Names all 3 models: O-340-A2A, O-340-B1A and O-340-A1A
- [TCDS E-285](https://openairdocs.org/tcds/E-285.md): Lycoming Engines · Names all 3 models: SO-580-A1B, SO-580-A1A and VSO-580-A1A
- [TCDS E00004NY](https://openairdocs.org/tcds/E00004NY.md): Lycoming Engines · Names all 3 models: IO-580-B1A, AEIO-580-B1A and IO-580-A1A
- [TCDS 1E14](https://openairdocs.org/tcds/1E14.md): Lycoming Engines · Names all 2 models: TIVO-540-A2A and TVO-540-A1A
- [TCDS E00009NY](https://openairdocs.org/tcds/E00009NY.md): Lycoming Engines · Names all 2 models: TEO-540-A1A and TEO-540-C1A
- [TCDS E00008SE](https://openairdocs.org/tcds/E00008SE.md): Merlyn Products Inc · Names 1 of 1 model: IO-540-MX1
- [TCDS E11EA](https://openairdocs.org/tcds/E11EA.md): Lycoming Engines · Names 1 of 1 model: IVO-540-A1A

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT p.tcds_number, any_value(t.holder) AS holder, any_value(t.status) AS status, list(DISTINCT coalesce(p.tcds_model, p.model)) AS models
FROM 'https://openairdocs.org/data/latest/faa_directive_product.parquet' p LEFT JOIN 'https://openairdocs.org/data/latest/faa_type_certificate.parquet' t USING (tcds_number)
WHERE p.ad_id = 'FAA:2026-04-11' AND p.tcds_number IS NOT NULL
GROUP BY p.tcds_number
ORDER BY len(models) DESC, p.tcds_number
```

This list as a web page: https://openairdocs.org/ad/2026-04-11/tcds

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