ST04214AT
Installs a standalone Astronics AES 110V AC 60 Hz and 5V DC power system with two outlets in the cockpit. Held by Fedex Express, which holds 11 approved modifications in all. Last revised June 12, 2015. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company
- Models
- MD-10-10F, MD-10-30F, MD-11, MD-11F
- Type certificates
- A22WE, A22WE, A22WE, A22WE
- On this site
- Mcdonnell Douglas MD-10 15 registered
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.