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

SA2814WE

Installation of Hamilton Standard3D40 225/6101A-18 propeller. Held by Santa Monica Propeller Svc. Last revised February 5, 1974. System: propeller.

What it applies to

Kind of product
Aircraft
Design holder
Rockwell International Corporation; Rockwell International Corporation; Rockwell International Corporation; Rockwell International Corporation; Rockwell International Corporation; Rockwell International Corporation; Rockwell International Corporation; Rockwell International Corporation
Models
AT-6 (SNJ-2), AT-6F (SNJ-6), AT-6D (SNJ-5), AT-6C (SNJ-4), AT-6B, AT-6A (SNJ-3), AT-6F (SNJ-7), T-6G
Type certificates
A-2-575, A-2-575, A-2-575, A-2-575, A-2-575, A-2-575, A-2-575, A-2-575
On this site
North American AT-6 Texan 228 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 20, 2026.