# Proposed AD FAA-2026-11791: Bell Textron Canada Limited Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Comments due Nov 16
- Products: Bell Textron Canada 505
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: September 30, 2026, 91 FR 61806
- Comments due: November 16, 2026
- Docket: FAA-2026-11791 (https://www.regulations.gov/docket/FAA-2026-11791, where comments are filed)
- Project: MCAI-2026-00491-R
- FR document: 2026-19970
- Official PDF: https://openairdocs.org/files/sha256/0d/b5/0db54b0c9e574c3ad2f1e15b112aa2c5e011fb969887eb9e7acdeeba062bc18c (from https://www.govinfo.gov/content/pkg/FR-2026-09-30/pdf/2026-19970.pdf)
- Federal Register: https://www.federalregister.gov/documents/2026/09/30/2026-19970/airworthiness-directives-bell-textron-canada-limited-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2026-19970-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2026-11791

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Bell Textron Canada Limited (Bell) Model 505 helicopters. This proposed AD was prompted by a determination that new or more restrictive airworthiness limitations are necessary. This proposed AD would require revising the airworthiness limitation schedule (ALS) of the existing maintenance manual (MM) or instructions for continued airworthiness (ICA) and the existing approved maintenance or inspection program, as applicable. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Sep 30, 2026: Notice of proposed rulemaking (NPRM). (first notice), FR document 2026-19970, comments due Nov 16, 2026 (https://www.federalregister.gov/documents/2026/09/30/2026-19970/airworthiness-directives-bell-textron-canada-limited-helicopters)

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