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

SA578SW

Fabrication and installation of rack for radar in nose wheel area. Held by Tiger Air Svc Center, INC, which holds 46 approved modifications in all. Last revised May 30, 1979. System: landing gear.

What it applies to

Kind of product
Aircraft
Design holder
Fairchild Industries Inc.; Fairchild Industries Inc.; Fairchild Industries Inc.; Fairchild Industries Inc.
Models
F27-J, F27-A, F27-F, F27
Type certificates
7A1, 7A1, 7A1, 7A1
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 7, 2026.