# Proposed AD FAA-2013-0525: Bell Helicopter Textron Canada Limited (Bell) Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2014-02-02
- Products: Bell Helicopter Textron Canada
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: June 20, 2013, 78 FR 37152
- Comments due: August 19, 2013
- Became: [AD 2014-02-02](https://openairdocs.org/ad/2014-02-02)
- Docket: FAA-2013-0525 (https://www.regulations.gov/docket/FAA-2013-0525, where comments are filed)
- Project: 2011-SW-063-AD
- FR document: 2013-14704
- Official PDF: https://openairdocs.org/files/sha256/29/91/2991985c2f2d6187b6833bac12283243ca7853723d0580d95515610096dba18a (from https://www.govinfo.gov/content/pkg/FR-2013-06-20/pdf/2013-14704.pdf)
- Federal Register: https://www.federalregister.gov/documents/2013/06/20/2013-14704/airworthiness-directives-bell-helicopter-textron-canada-limited-bell-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E36431896229A47286257B9000478080.0001
- Page: https://openairdocs.org/proposed/FAA-2013-0525

## Summary

We propose to adopt a new airworthiness directive (AD) for Bell Model 206L, L-1, L-3, and L-4 helicopters. This proposed AD would require measuring each main rotor (M/R) blade spar space to determine whether it is oversized and reidentifying the blade and reducing the life limit of the blade if the spar spacer is oversized. This proposed AD is prompted by the manufacture of certain main rotor blades with an oversized spar spacer and the determination to reduce the life limits of those main rotor blades. The proposed actions are intended to prevent failure of a M/R blade and subsequent loss of control of the helicopter.

## Notices in this docket

- Jun 20, 2013: Notice of proposed rulemaking (NPRM). (first notice), FR document 2013-14704, comments due Aug 19, 2013 (https://www.federalregister.gov/documents/2013/06/20/2013-14704/airworthiness-directives-bell-helicopter-textron-canada-limited-bell-helicopters)

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