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

SE1447SO

Installation of GTSIO-520-C induction system, fuel injection system, oil cooler, oil filter, turbo- charger, exhaust system and related parts, and derate the power and per- formance to the GTSIO-520-C power. Held by South Florida Aircraft Sales & Leasing, INC, which holds 2 approved modifications in all. Last revised May 23, 1983. System: engine.

What it applies to

Kind of product
Engine
Design holder
Teledyne Continental Motors
Models
GTSIO-520-M
Type certificate
E7CE
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 21, 2026.