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

ST09843SC

Installation of a digital flight data recorder expanded parameter upgrade using Teledyne 2235000-1B ARINC 717 digital fight data acquisition unit. Held by Aircraft Systems & Mfg, which holds 60 approved modifications in all. Last revised December 13, 2000. System: other and general.

What it applies to

Kind of product
Aircraft
Design holder
McDonnell Douglas Corporation
Models
MD-11
Type certificate
A22WE
On this site
Mcdonnell Douglas MD-11 104 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.