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

SA00140LA

Installation of a replacement S & S Propeller model W7448A1-2. Held by S & S Propellers INC, which holds 3 approved modifications in all. Last revised December 7, 1995. System: propeller.

What it applies to

Kind of product
Aircraft
Design holder
Taylorcraft Inc.; Taylorcraft Inc.; Taylorcraft Inc.; Taylorcraft Inc.; Taylorcraft Inc.; Taylorcraft Inc.; Taylorcraft Inc.; Taylorcraft Inc.; Taylorcraft Inc.; Taylorcraft Inc.; Taylorcraft Inc.; Taylorcraft Inc.; Taylorcraft Inc.; Taylorcraft Inc.; Taylorcraft Inc.; Taylorcraft Inc.
Models
A, BF12-65 (Army L-2K), BFS12-65, BF-60, BFS-60, BF (Army L-2G), BL, BLS, BL12-65 (Army L-2J), BL-65 (Army L-2F), DC-65 (Army L-2), DL-65 (Army L-2D), DCO-65 (Army L-2M), DCO-65 (Army L-2B), DCO-65 (Army L-2A), DC-65 (Army L-2C)
Type certificates
A-643, A-699, A-699, A-699, A-699, A-699, A-700, A-700, A-700, A-700, A-746, A-746, A-746, A-746, A-746, A-746
On this site
Taylorcraft A 28 registered
Taylorcraft BF12 14 registered
Taylorcraft BL 13 registered
Taylorcraft BL-65 134 registered
Taylorcraft BL12 16 registered
Taylorcraft DC-65 49 registered
Taylorcraft DCO-65 195 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 8, 2026.