# Airworthiness directives that may apply: N53HT

A list on [N53HT](https://openairdocs.org/aircraft/N53HT.md).

Matched by this aircraft’s airframe and engine models. Each AD’s applicability may narrow it by serial number, part number or equipment.

- [AD 2026-16-11](https://openairdocs.org/ad/2026-16-11.md): Reciprocating Engine Front Section · Effective Aug 28, 2026
- [AD 2023-17-13](https://openairdocs.org/ad/2023-17-13.md): Reciprocating Engine Front Section · Effective Sep 20, 2023
- [AD 2019-10-04](https://openairdocs.org/ad/2019-10-04.md): Reciprocating Engine Cylinder Section · Effective Jul 10, 2019
- [AD 2016-23-04](https://openairdocs.org/ad/2016-23-04.md): Carburetor floats · Effective Dec 7, 2016
- [AD 2016-13-04](https://openairdocs.org/ad/2016-13-04.md): Engine coolant temperature limit · Effective Jul 27, 2016
- [AD 2013-15-19](https://openairdocs.org/ad/2013-15-19.md): Excessive oil consumption · Effective Aug 27, 2013 · Supersedes AD 2013-07-12
- [AD 2012-16-13](https://openairdocs.org/ad/2012-16-13.md): Pressure side fuel hose · Effective Sep 10, 2012
- [AD 2012-04-03](https://openairdocs.org/ad/2012-04-03.md): Oil pump attachment bolts · Effective Mar 16, 2012
- [AD 2011-25-02](https://openairdocs.org/ad/2011-25-02.md): Crankshaft · Effective Dec 22, 2011
- [AD 2011-12-04](https://openairdocs.org/ad/2011-12-04.md): Washers · Effective Jun 27, 2011
- [AD 2010-20-23](https://openairdocs.org/ad/2010-20-23.md): Engine crankcase · Effective Nov 8, 2010 · Supersedes AD 2002-16-26
- [AD 2010-18-14](https://openairdocs.org/ad/2010-18-14.md): Fuel pressure · Effective Oct 13, 2010
- [AD 2005-01-14](https://openairdocs.org/ad/2005-01-14.md): Valve train on all engines · Effective Feb 15, 2005 · Supersedes AD 2002-21-16
- [AD 2002-19-09](https://openairdocs.org/ad/2002-19-09.md): Fuel pump assembly · Effective Oct 10, 2002
- [AD 2002-16-07](https://openairdocs.org/ad/2002-16-07.md): Valve Spring Retainers · Effective Sep 3, 2002
- [AD 2013-07-12](https://openairdocs.org/ad/2013-07-12.md): Cylinder heads · Historical · Effective Apr 30, 2013 · Replaced by AD 2013-15-19
- [AD 2002-21-16](https://openairdocs.org/ad/2002-21-16.md): Valve train · Historical · Effective Oct 28, 2002 · Replaced by AD 2005-01-14

## 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, m.matched_by
FROM (
  SELECT ad_id, min(rank) AS rank, arg_min(matched_by, rank) AS matched_by
  FROM (SELECT ad_id, 1 AS rank, 'airframe' AS matched_by FROM 'https://openairdocs.org/data/latest/faa_aircraft_model_directive.parquet' WHERE aircraft_model_code = '060001M'
    UNION ALL SELECT ad_id, 2, 'engine' FROM 'https://openairdocs.org/data/latest/faa_engine_model_directive.parquet' WHERE engine_model_code = '55570')
  GROUP BY ad_id
) m JOIN 'https://openairdocs.org/data/latest/faa_directive.parquet' d USING (ad_id)
ORDER BY d.status = 'Historical', m.rank, coalesce(d.effective_date, d.publication_date, d.issue_date) DESC, d.ad_number DESC
```

This list as a web page: https://openairdocs.org/aircraft/N53HT/ads

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