# STC SA2946SO

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Arch-Warrior, Inc, United States
- Description: Replace Lycoming 160 hp O-320-D3G or 150 hp, O-320-E3D engine with a Lycoming 180 hp O-360-A4A or O-360-A4M engine, and replace Sensenich 74-DM6-0-60 propeller with Sensenich 76-EM8-0-60 propeller.
- Applied: March 16, 1990
- Status date: January 7, 1992
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 2A13](https://openairdocs.org/tcds/2A13)
- Certificate PDF: https://openairdocs.org/files/sha256/ed/1f/ed1f96f4e4ee008580de7df5caf75edc309f7a361173723cbb45e84f31228f06
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C1EF8395B2B04C2A85256CC20008CB08.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2946SO

## ADs that name it (1)

- [AD 99-26-05](https://openairdocs.org/ad/99-26-05): Induction Air Filter · Lavia Argentina PA-25, PA-25-235, PA-25-260 and 5 more. Effective Jan 13, 2000. Named in the applicability

## Approved models (2)

- The New Piper Aircraft Inc. PA-28-151 ([TCDS 2A13](https://openairdocs.org/tcds/2A13))
- The New Piper Aircraft Inc. PA-28-161 ([TCDS 2A13](https://openairdocs.org/tcds/2A13))

## What the certificate says

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

## Every issue (1)

- January 7, 1992: Amended, Current. [certificate](https://openairdocs.org/files/sha256/ed/1f/ed1f96f4e4ee008580de7df5caf75edc309f7a361173723cbb45e84f31228f06)

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