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

SA3897SW-D

Modify the Air Conditioning system to install two Ozone Converters. Held by American Airlines INC, which holds 377 approved modifications in all. Last revised December 9, 1996. System: heating, ice protection and utility systems.

What it applies to

Kind of product
Aircraft
Design holder
Airbus
Models
A300 B4-605R
Type certificate
A35EU
On this site
Airbus A300 120 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.