# STC SA2998SO

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Mike Jones Aircraft Sales Inc., United States
- Description: Installation of McCauley propeller governor (as shown in table on Page 2) in accordance with Colemill Enterprises installation instructions CM900-10 February 15, 1991.
- Applied: February 21, 1991
- Status date: February 10, 2011
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A20SO](https://openairdocs.org/tcds/A20SO)
- Certificate PDF: https://openairdocs.org/files/sha256/57/87/57875667fbb42c8c47243393c16565a6859cf8dfb8784fd5db14c4a3a16312a3
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D19DC529263F43FC8625784E006E38D1.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2998SO

## ADs that name it (0)

None.

## Approved models (3)

- Piper Aircraft Inc. PA-31 ([TCDS A20SO](https://openairdocs.org/tcds/A20SO))
- Piper Aircraft Inc. PA-31-325 ([TCDS A20SO](https://openairdocs.org/tcds/A20SO))
- Piper Aircraft Inc. PA-31-350 ([TCDS A20SO](https://openairdocs.org/tcds/A20SO))

## What the certificate says

The certificate is a scan without a text layer; open the PDF to read it.

## Every issue (1)

- February 10, 2011: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/57/87/57875667fbb42c8c47243393c16565a6859cf8dfb8784fd5db14c4a3a16312a3)

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