# Lycoming Mandatory Service Bulletin 630

## Copies (2)

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

- Revision B ("Lycoming Mandatory Service Bulletin No. 630B"), 9 pages: PDF https://openairdocs.org/files/sha256/c8/f3/c8f3643b0e5b7755f4ea9fb4344d347e3e1e323582943fa3d73d4b001b2a805f; text https://openairdocs.org/service-documents/lycoming/sb-630/file/c8f3643b0e5b.md. Rights: © Avco Corporation. Filed by the FAA in regulations.gov docket FAA-2025-1365; AD 2026-04-11 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication.
- Revision A ("Lycoming Mandatory Service Bulletin 630 Rev A"), 4 pages: PDF https://openairdocs.org/files/sha256/e6/66/e6660605a8935e7fb2ddc697539621e1023856ef209d65f251ffa664c3c8fd16; text https://openairdocs.org/service-documents/lycoming/sb-630/file/e6660605a893.md. Rights: © Avco Corporation. Filed by the FAA in regulations.gov docket FAA-2024-1695; AD 2024-21-02 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication.

## Details

- Manufacturer: [Lycoming](https://openairdocs.org/service-documents/lycoming.md)
- Type: Service bulletin (Mandatory Service Bulletin)
- Number: 630
- Latest revision known: 630B, dated June 11, 2025 (OpenAirDocs)
- Page: https://openairdocs.org/service-documents/lycoming/sb-630

## ADs that cite it (2) (OpenAirDocs)

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

- [AD 2026-04-11](https://openairdocs.org/ad/2026-04-11.md), effective Apr 8, 2026: Revisions A and B
- [AD 2024-21-02](https://openairdocs.org/ad/2024-21-02.md), effective Dec 5, 2024: Revision A

Also cited in [2 proposed ADs](https://openairdocs.org/service-documents/lycoming/sb-630/proposed.md), [1 NTSB investigation](https://openairdocs.org/service-documents/lycoming/sb-630/ntsb.md).

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