# Bell Alert Service Bulletin 429-19-50

Copy: Revision B ("Bell ASB 429-19-50 Rev B"), 12 pages: PDF https://openairdocs.org/files/sha256/af/f8/aff8557a87d33120693c5dcaa871e62b1e48dc615ba5d1455be29e198645fa6f; text https://openairdocs.org/service-documents/bell/sb-429-19-50/file/aff8557a87d3.md. Rights: © Bell Textron Inc. Filed by the FAA in regulations.gov docket FAA-2021-0575; AD 2021-20-11 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication.

## Details

- Manufacturer: [Bell](https://openairdocs.org/service-documents/bell.md)
- Type: Service bulletin (Alert Service Bulletin)
- Number: 429-19-50
- Latest revision known: 429-19-50, Revision B, dated December 19, 2019 (OpenAirDocs)
- Page: https://openairdocs.org/service-documents/bell/sb-429-19-50

## ADs that cite it (1) (OpenAirDocs)

Newest first, with the revision each names, as OpenAirDocs read it from the AD's text.

- [AD 2021-20-11](https://openairdocs.org/ad/2021-20-11.md), effective Nov 22, 2021: Revisions A and B

Also cited in [1 proposed AD](https://openairdocs.org/service-documents/bell/sb-429-19-50/proposed.md).

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