# Proposed AD FAA-2022-1488: Bell Textron Canada Limited Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2023-06-05
- Products: Bell Textron Canada
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: November 28, 2022, 87 FR 72899
- Comments due: January 12, 2023
- Became: [AD 2023-06-05](https://openairdocs.org/ad/2023-06-05)
- Docket: FAA-2022-1488 (https://www.regulations.gov/docket/FAA-2022-1488, where comments are filed)
- Project: MCAI-2022-00788-R
- FR document: 2022-25709
- Official PDF: https://openairdocs.org/files/sha256/67/2a/672abc97fae5a2030a80363a0191a23c6f542fb5004d4c3423677b5506bb8fb5 (from https://www.govinfo.gov/content/pkg/FR-2022-11-28/pdf/2022-25709.pdf)
- Federal Register: https://www.federalregister.gov/documents/2022/11/28/2022-25709/airworthiness-directives-bell-textron-canada-limited-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2022-25709-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2022-1488

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all Bell Textron Canada Limited Model 206A, 206A-1 (OH-58A), 206B, 206B-1, 206L, 206L-1, 206L-3, and 206L-4 helicopters. This proposed AD was prompted by a loss of tail rotor (TR) drive due to a failure of an adhesively bonded joint between an adapter and a tube on one of the segmented TR drive shaft (TRDS) assemblies. This proposed AD would require determining if an affected TRDS is installed; repetitively inspecting the bond line for damage; repetitively performing a proof load test of the TRDS assembly; and depending on the results of the inspections or the proof load tests, removing an affected TRDS from service and replacing it with a serviceable TRDS. This proposed AD would also prohibit installing a TRDS unless it meets certain requirements, as specified in a Transport Canada AD, which is proposed for incorporation by reference. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Nov 28, 2022: Notice of proposed rulemaking (NPRM). (first notice), FR document 2022-25709, comments due Jan 12, 2023 (https://www.federalregister.gov/documents/2022/11/28/2022-25709/airworthiness-directives-bell-textron-canada-limited-helicopters)

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