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

ST02174AT

Reduction in maximum zero fuel weight to 23,218 lbs. to reduce payload to FAR 135 limit of 7,500 lbs. For model EMB-120FC. Held by North South Airways. Last revised August 14, 2000. System: other and general.

What it applies to

Kind of product
Aircraft
Design holder
Embraer - Empresa Brasileira de Aeronautica S.A.
Models
EMB-120
Type certificate
A31SO
On this site
Embraer EMB-120 41 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.