# Airworthiness directives that may apply: N171PL

A list on [N171PL](https://openairdocs.org/aircraft/N171PL.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 2016-08-21](https://openairdocs.org/ad/2016-08-21.md): Main Rotor Control · Effective May 31, 2016
- [AD 2015-14-04](https://openairdocs.org/ad/2015-14-04.md): Main Rotor MRB · Effective Aug 17, 2015
- [AD 2010-26-11](https://openairdocs.org/ad/2010-26-11.md): Main Rotor Blades · Effective Jan 5, 2011
- [AD 2004-13-26](https://openairdocs.org/ad/2004-13-26.md): Main rotor blade (blade) grips · Effective Jul 22, 2004
- [AD 2001-13-03 R1](https://openairdocs.org/ad/2001-13-03-R1.md): Flap clevis · Effective May 27, 2003 · Supersedes AD 2001-13-03
- [AD 2000-18-10](https://openairdocs.org/ad/2000-18-10.md): Sprag Clutches · Effective Sep 26, 2000
- [AD 99-26-04](https://openairdocs.org/ad/99-26-04.md): Clutch Assembly · Effective Feb 8, 2000
- [AD 2022-10-02](https://openairdocs.org/ad/2022-10-02.md): Engine Controls · Effective Jun 28, 2022 · Supersedes AD 2002-03-01
- [AD 2009-15-13](https://openairdocs.org/ad/2009-15-13.md): Combustion chamber housings (CCHs) · Effective Aug 25, 2009
- [AD 2006-11-16](https://openairdocs.org/ad/2006-11-16.md): Fuel control regulator assemblies · Effective Jul 5, 2006 · Supersedes AD 98-22-11
- [AD 2006-01-05](https://openairdocs.org/ad/2006-01-05.md): Turboshaft engine · Effective Feb 16, 2006 · Supersedes AD 87-12-05
- [AD 2002-15-04](https://openairdocs.org/ad/2002-15-04.md): Compressor impellers · Effective Sep 10, 2002
- [AD 2002-09-09](https://openairdocs.org/ad/2002-09-09.md): Centrifugal Compressor Impeller · Effective Jun 13, 2002
- [AD 97-21-07 R1](https://openairdocs.org/ad/97-21-07-R1.md): Accessory Drive Carrier Assembly · Effective Jul 6, 1998
- [AD 97-07-05](https://openairdocs.org/ad/97-07-05.md): Accessory Drive Assembly · Effective Jun 24, 1997
- [AD 95-10-04](https://openairdocs.org/ad/95-10-04.md): Centrifugal Compressor Impeller · Effective May 25, 1995
- [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 2001-13-03](https://openairdocs.org/ad/2001-13-03.md): Rotor Shaft and Teeter Pin Assembly · Historical · Effective Aug 1, 2001 · Replaced by AD 2001-13-03 R1
- [AD 98-22-11](https://openairdocs.org/ad/98-22-11.md): Fuel Pumps · Historical · Effective Dec 18, 1998 · Replaced by AD 2006-11-16

## 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, 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 = '13027LS'
    UNION ALL SELECT ad_id, 2, 'engine' FROM 'https://openairdocs.org/data/latest/faa_engine_model_directive.parquet' WHERE engine_model_code = '33859')
  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/N171PL/ads

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