# Proposed AD FAA-2012-0083: Aeronautical Accessories Inc. High Landing Gear Aft Crosstube Assembly

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2012-11-13
- Products: Aeronautical Accessories
- Product type: Appliance
- Action: Notice of proposed rulemaking (NPRM).
- Published: February 3, 2012, 77 FR 5420
- Comments due: April 3, 2012
- Became: [AD 2012-11-13](https://openairdocs.org/ad/2012-11-13)
- Docket: FAA-2012-0083 (https://www.regulations.gov/docket/FAA-2012-0083, where comments are filed)
- Project: 2010-SW-022-AD
- FR document: 2012-2423
- Official PDF: https://openairdocs.org/files/sha256/83/07/83078313c23e1c6ee918dc21a75470de14a477f2cc8c50eb2b03102aa249a5a6 (from https://www.govinfo.gov/content/pkg/FR-2012-02-03/pdf/2012-2423.pdf)
- Federal Register: https://www.federalregister.gov/documents/2012/02/03/2012-2423/airworthiness-directives-aeronautical-accessories-inc-high-landing-gear-aft-crosstube-assembly
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/67BE336DECF69A6086257999004F751B.0001
- Page: https://openairdocs.org/proposed/FAA-2012-0083

## Summary

We propose to adopt a new airworthiness directive (AD) for the Aeronautical Accessories Inc. (AAI) High Landing Gear Aft Crosstube Assembly (aft crosstube) installed on certain Bell Helicopter Textron, Inc. (Bell) and Agusta S.p.A. (Agusta) model helicopters as an approved Bell part installed during production or based on a Supplemental Type Certificate (STC). This proposed AD is prompted by three reports of failed crosstubes because of cracks. The proposed actions are intended to prevent failure of a crosstube, collapse of the landing gear, and subsequent loss of control of the helicopter.

## Notices in this docket

- Feb 3, 2012: Notice of proposed rulemaking (NPRM). (first notice), FR document 2012-2423, comments due Apr 3, 2012 (https://www.federalregister.gov/documents/2012/02/03/2012-2423/airworthiness-directives-aeronautical-accessories-inc-high-landing-gear-aft-crosstube-assembly)

---
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.