# Leonardo Alert Bollettino Tecnico 139-392

## Copies (3)

Copies the FAA filed in AD dockets on regulations.gov, newest revision first. A newer revision may exist.

- Revision A ("Leonardo Helicopters Alert BT 139-392 Rev A"), 20 pages: PDF https://openairdocs.org/files/sha256/1a/1d/1a1d110bed3d0ead3efdb7eb580aa3eea5aa98a7f5aa7076f65a82ccb9424681; text https://openairdocs.org/service-documents/leonardo/sb-139-392/file/1a1d110bed3d.md. Rights: © Leonardo S.p.A. Filed by the FAA in regulations.gov docket FAA-2020-0797; AD 2021-05-21 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication.
- Revision A ("Leonardo Helicopters Alert BT 139-392 Rev A"), 20 pages: PDF https://openairdocs.org/files/sha256/f7/f7/f7f73f8025d34a004e48f7b97470b6f001c10c52231496ad835bdb96730adde2; text https://openairdocs.org/service-documents/leonardo/sb-139-392/file/f7f73f8025d3.md. Rights: © Leonardo S.p.A. Filed by the FAA in regulations.gov docket FAA-2017-0982; AD 2017-23-08 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication.
- U.S. DOT/FAA - AgustaWestland BT No 139-392 ("U.S. DOT/FAA - AgustaWestland BT No 139-392"), 15 pages: PDF https://openairdocs.org/files/sha256/b6/61/b6619ea494f661e88fb18d194f8be0b0d052ef5ac255c48daef99f92d1bc1b3f; text https://openairdocs.org/service-documents/leonardo/sb-139-392/file/b6619ea494f6.md. Rights: © Leonardo S.p.A. Filed by the FAA in regulations.gov docket FAA-2014-0971; AD 2014-24-02 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication.

## Details

- Manufacturer: [Leonardo](https://openairdocs.org/service-documents/leonardo.md)
- Type: Service bulletin (Alert Bollettino Tecnico)
- Number: 139-392
- Latest revision known: 139-392, Revision A, dated February 14, 2017 (OpenAirDocs)
- Page: https://openairdocs.org/service-documents/leonardo/sb-139-392

## ADs that cite it (3) (OpenAirDocs)

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

- [AD 2021-05-21](https://openairdocs.org/ad/2021-05-21.md), effective May 7, 2021: Revision A
- [AD 2017-23-08](https://openairdocs.org/ad/2017-23-08.md), effective Dec 11, 2017: Revision A
- [AD 2014-24-02](https://openairdocs.org/ad/2014-24-02.md), effective Dec 15, 2014: No revision named

Also cited in [1 proposed AD](https://openairdocs.org/service-documents/leonardo/sb-139-392/proposed.md).

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