STC ST04214AT

Installs a standalone Astronics AES 110V AC 60 Hz and 5V DC power system with two outlets in the cockpit

Current Issued Aircraft Large Airplane Rev 06/12/2015 View PDF on drs.faa.gov ↗

What is an STC?

A Supplemental Type Certificate authorizes a major modification or alteration to an FAA-certificated aircraft. STCs are how operators legally install new avionics, change fuel systems, add floats, swap engines, etc. — every change beyond a minor modification needs one.

Applicable aircraft (4)

A22WE The Boeing Company · MD-10-10F
A22WE The Boeing Company · MD-10-30F
A22WE The Boeing Company · MD-11
A22WE The Boeing Company · MD-11F

Certification basis — 14 CFR

Part 21
Part 25

Specific sections

§ 21.47
§ 25.23
§ 21.101
§ 21.111
§ 21.113
§ 21.115
§ 21.117
§ 21.119
§ 21.120
§ 25.301

The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗