# Airworthiness directives: TCDS E-253

A list on [TCDS E-253](https://openairdocs.org/tcds/E-253.md).

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

- [AD 2023-17-04](https://openairdocs.org/ad/2023-17-04.md): Reciprocating Engine Oil System · Effective Oct 26, 2023 · Supersedes AD 2022-04-04
- [AD 2011-26-07](https://openairdocs.org/ad/2011-26-07.md): Engine · Effective Jan 24, 2012 · Supersedes AD 2002-13-04
- [AD 98-17-11](https://openairdocs.org/ad/98-17-11.md): Crankshafts · Effective Oct 19, 1998
- [AD 98-01-06](https://openairdocs.org/ad/98-01-06.md): Carburetors · Effective Feb 13, 1998 · Supersedes AD 93-18-03
- [AD 94-05-05 R1](https://openairdocs.org/ad/94-05-05-R1.md): Cylinder Rocker · Effective Feb 13, 1996
- [AD 95-21-15](https://openairdocs.org/ad/95-21-15.md): Aviation Gasoline · Effective Nov 28, 1995 · Supersedes AD 94-14-12
- [AD 93-19-04](https://openairdocs.org/ad/93-19-04.md): Carburetors · Effective Oct 18, 1993
- [AD 93-10-02](https://openairdocs.org/ad/93-10-02.md): Missing Cylinder Valve Retainer Key · Effective Aug 12, 1993
- [AD 93-11-03](https://openairdocs.org/ad/93-11-03.md): Incorrect Connecting Rod · Effective Jul 13, 1993
- [AD 80-06-05](https://openairdocs.org/ad/80-06-05.md): Magnetos · Effective Mar 28, 1980
- [AD 69-24-03](https://openairdocs.org/ad/69-24-03.md): Carburetors · Effective Nov 29, 1969
- [AD 49-50-01](https://openairdocs.org/ad/49-50-01.md): Generator Drive Coupling Rubber Disc
- [AD 50-20-01](https://openairdocs.org/ad/50-20-01.md): Crankcase
- [AD 2022-04-04](https://openairdocs.org/ad/2022-04-04.md): Reciprocating Engine Oil System · Historical · Effective Mar 29, 2022 · Replaced by AD 2023-17-04
- [AD 2002-13-04](https://openairdocs.org/ad/2002-13-04.md): Magneto impulse coupling stop pin · Historical · Effective Jul 12, 2002 · Replaced by AD 2011-26-07
- [AD 2000-11-51](https://openairdocs.org/ad/2000-11-51.md): Magnetos · Historical · Replaced by AD 2002-13-04
- [AD 94-14-12](https://openairdocs.org/ad/94-14-12.md): Octane Aviation Gasoline · Historical · Replaced by AD 95-21-15

## 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 = 'E-253')
ORDER BY d.status = 'Historical', coalesce(d.effective_date, d.publication_date) DESC
```

This list as a web page: https://openairdocs.org/tcds/E-253/ads

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