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

SA5575SW

Installation of engine nacelle inspection plates. Held by Aar Aircraft Services INC, which holds 40 approved modifications in all. Last revised March 5, 1999. System: engine.

What it applies to

Kind of product
Aircraft
Design holder
Israel Aircraft Industries Ltd.; Israel Aircraft Industries Ltd.
Models
1124, 1124A
Type certificates
A2SW, A2SW
On this site
Israel Aircraft Industries 1124 73 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 7, 2026.