# Leonardo Alert Service Bulletin 109EP-173

## Copies (2)

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

- No revision named ("Leonardo Helicopters ASB 109EP-173 Rev B"), 110 pages: PDF https://openairdocs.org/files/sha256/40/dc/40dc918516e4d1406ebaa12da87063e5a8340b3a8c7f8507518bdce3e6a13c6d; text https://openairdocs.org/service-documents/leonardo/109ep-173/file/40dc918516e4.md. Rights: © Leonardo S.p.A. Filed by the FAA in regulations.gov docket FAA-2025-2556, the docket of AD 2026-09-09. Not covered by OpenAirDocs’ CC0 dedication.
- No revision named ("Leonardo Helicopters ASB No. 109EP-173"), 69 pages: PDF https://openairdocs.org/files/sha256/03/da/03da775071311172bb1b1ee0e205632f108a0fa8d8367b731efa0976669c6141; text https://openairdocs.org/service-documents/leonardo/109ep-173/file/03da77507131.md. Rights: © Leonardo S.p.A. Filed by the FAA in regulations.gov docket FAA-2021-0697, the docket of AD 2021-23-04. Not covered by OpenAirDocs’ CC0 dedication.

## Details

- Manufacturer: [Leonardo](https://openairdocs.org/service-documents/leonardo.md)
- Type: Service bulletin (Alert Service Bulletin)
- Number: 109EP-173
- Page: https://openairdocs.org/service-documents/leonardo/109ep-173

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

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

- [AD 2021-23-04](https://openairdocs.org/ad/2021-23-04.md), effective Jan 10, 2022: No revision named

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