The U.S. aircraft register, updated daily
Approved modifications · supplemental type certificate · current · amended

SA2946SO

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. Held by Arch-Warrior, INC. Last revised January 7, 1992. System: propeller.

What it applies to

Kind of product
Aircraft
Design holder
The New Piper Aircraft Inc.; The New Piper Aircraft Inc.
Models
PA-28-161, PA-28-151
Type certificates
2A13, 2A13
On this site
Piper PA-28 Cherokee, Warrior, Archer and Arrow 18,636 registered
The FAA's record
On the FAA's site

What an approved modification is

A supplemental type certificate is the FAA's approval of a change to a certified design: a new engine or propeller, avionics, an autopilot, floats, a parachute, a larger fuel tank, an ice-protection kit. The company holding it may sell the kit and the paperwork to owners of the listed models; the modification then becomes part of that aircraft's record. The FAA's list says what was approved and for which models, not how many aircraft carry it.

Source: FAA supplemental type certificates (Dynamic Regulatory System). Register counts from the FAA register of October 22, 2026.