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

ST108CH

Installation of wheel flange abrasion liner. Held by Airepair LLC. Last revised April 7, 2008. System: landing gear.

What it applies to

Kind of product
Aircraft
Design holder
Aerospatiale (Societe Nationale Industrielle Aerospatiale); Aerospatiale (Societe Nationale Industrielle Aerospatiale); Aerospatiale (Societe Nationale Industrielle Aerospatiale); Aerospatiale (Societe Nationale Industrielle Aerospatiale); Aerospatiale (Societe Nationale Industrielle Aerospatiale); Aerospatiale (Societe Nationale Industrielle Aerospatiale); Aerospatiale (Societe Nationale Industrielle Aerospatiale); Aerospatiale (Societe Nationale Industrielle Aerospatiale); Aerospatiale (Societe Nationale Industrielle Aerospatiale)
Models
ATR72-211, ATR42-200, ATR72-202, ATR72-102, ATR72-201, ATR72-101, ATR42-320, ATR42-300, ATR72-212
Type certificates
A53EU, A53EU, A53EU, A53EU, A53EU, A53EU, A53EU, A53EU, A53EU
On this site
Aerospatiale/Aeritalia ATR 42 16 registered
Aerospatiale ATR 72 9 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.