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

ST350CH

Installation of replacement immersion heater. Held by Aircraft Food Service Equipment Repair, which holds 14 approved modifications in all. Last revised April 27, 2005. System: heating, ice protection and utility systems.

What it applies to

Kind of product
Aircraft
Design holder
The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus
Models
747-400 Series, 747-400D Series, 757-200 Series, 757-200CB Series, 757-200PF Series, 757-300 Series, DC-10-30, DC-9-31, DC-9-32, DC-9-32F, DC-9-33F, DC-9-34, DC-9-34F, DC-9-41, DC-9-81, DC-9-82, DC-9-83, DC-9-87, MD-88, A319 Model -111, A319 Model -112, A319 Model -113, A319 Model -114, A319 Model -115, A319 Model -131, A319 Model -132, A319 Model -133, A320 Model -111, A320 Model -211, A320 Model -231, A330-201, A330-202, A330-203, A330-223, A330-243, A330-301, A330-321, A330-322, A330-323, A330-341, A330-342, A330-343
Type certificates
A20WE, A20WE, A2NM, A2NM, A2NM, A2NM, A22WE, A6WE, A6WE, A6WE, A6WE, A6WE, A6WE, A6WE, A6WE, A6WE, A6WE, A6WE, A6WE, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A46NM, A46NM, A46NM, A46NM, A46NM, A46NM, A46NM, A46NM, A46NM, A46NM, A46NM, A46NM
On this site
Airbus A319 329 registered
Airbus A320 797 registered
Airbus A330 155 registered
Boeing 747 192 registered
Boeing 757 440 registered
Douglas DC-9 7 registered
Mcdonnell Douglas Aircraft Co MD-88 10 registered
Mcdonnell Douglas DC-10 17 registered
Mcdonnell Douglas DC-9 93 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.