# Proposed AD FAA-2026-8798: Bell Textron Canada Limited Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Comment period closed
- Products: Bell Textron Canada 505
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: September 10, 2026, 91 FR 57516
- Comments due: October 26, 2026
- Docket: FAA-2026-8798 (https://www.regulations.gov/docket/FAA-2026-8798, where comments are filed)
- Project: MCAI-2025-01771-R
- FR document: 2026-18468
- Official PDF: https://openairdocs.org/files/sha256/65/62/65621015cd662234d4a51cfd3a64c0d587b74e16f3c07c41552fc82b3ec47cd5 (from https://www.govinfo.gov/content/pkg/FR-2026-09-10/pdf/2026-18468.pdf)
- Federal Register: https://www.federalregister.gov/documents/2026/09/10/2026-18468/airworthiness-directives-bell-textron-canada-limited-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2026-18468-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2026-8798

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Bell Textron Canada Limited Model 505 helicopters. This proposed AD was prompted by a quality escape affecting certain tailcone assemblies. This proposed AD would require replacing any tailcone assembly that has exceeded a certain life limit. Also, this proposed AD would require inspecting the tailcone assembly for gaps, and repetitively inspecting the tailcone assembly for loose, damaged, or missing fasteners. Depending on the results of these inspections, this proposed AD would require conducting further inspections and corrective actions. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Sep 10, 2026: Notice of proposed rulemaking (NPRM). (first notice), FR document 2026-18468, comments due Oct 26, 2026 (https://www.federalregister.gov/documents/2026/09/10/2026-18468/airworthiness-directives-bell-textron-canada-limited-helicopters)

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