# Proposed AD FAA-2006-24090: Pilatus Aircraft Ltd. Models PC-6, PC- 6-H1, PC-6-H2, PC-6/350, PC-6/350-H1, PC-6/350-H2, PC-6/A, PC-6/A-H1, PC-6/A-H2, PC-6/B-H2, PC-6/B1-H2, PC-6/B2-H2, PC-6/B2-H4, PC-6/C-H2, and PC-6/C1-H2 Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2006-13-11
- Products: Pilatus
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: April 21, 2006, 71 FR 20597
- Comments due: May 24, 2006
- Became: [AD 2006-13-11](https://openairdocs.org/ad/2006-13-11)
- Docket: FAA-2006-24090 (https://www.regulations.gov/docket/FAA-2006-24090, where comments are filed)
- Project: 2006-CE-16-AD
- FR document: E6-5980
- Official PDF: https://openairdocs.org/files/sha256/b9/10/b910e38eb0fcc036d48a40531df0481df896ffe764945aa7107e598b18bf860a (from https://www.govinfo.gov/content/pkg/FR-2006-04-21/pdf/E6-5980.pdf)
- Federal Register: https://www.federalregister.gov/documents/2006/04/21/E6-5980/airworthiness-directives-pilatus-aircraft-ltd-models-pc-6-pc-6-h1-pc-6-h2-pc-6350-pc-6350-h1
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/974CF92623149B27862571570057C85E.0001
- Page: https://openairdocs.org/proposed/FAA-2006-24090

## Summary

We propose to supersede Airworthiness Directive (AD) 2002-21- 08, which applies to certain Pilatus Aircraft Ltd. (Pilatus) Model PC-6 airplanes. AD 2002-21-08 currently requires you to inspect the aileron assembly for correct configuration and modify as necessary. Since we issued AD 2002-21-08, the FAA determined the action should also apply to all the models of the PC-6 airplanes listed in the type certification data sheet of Type Certificate (TC) No. 7A15 that are produced in the United States through a licensing agreement between Pilatus and Fairchild Republic Company (also identified as Fairchild Industries, Fairchild Heli Porter, or Fairchild-Hiller Corporation). In addition, the intent of the applicability of AD 2002-21-08 was to apply to all the affected serial numbers of the airplane models listed in TC No. 7A15. Consequently, this proposed AD would retain all the actions of AD 2002-21-08, would add those Fairchild Republic Company airplanes to the applicability of this proposed AD, and would list out the individual specific airplane models. We are proposing this AD to correct improper aileron assembly configuration, which could result in failure of the aileron mass balance weight. Such failure could lead to loss of control of the airplane.

## Notices in this docket

- Apr 21, 2006: Notice of proposed rulemaking (NPRM). (first notice), FR document E6-5980, comments due May 24, 2006 (https://www.federalregister.gov/documents/2006/04/21/E6-5980/airworthiness-directives-pilatus-aircraft-ltd-models-pc-6-pc-6-h1-pc-6-h2-pc-6350-pc-6350-h1)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.