FAA · Supplemental Type Certificate
STC ST09939AC
Installation of the Spacex Starlink Aviation Satcom System
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 (18)
- A28NM Airbus SAS · A321-111
- A28NM Airbus SAS · A321-112
- A28NM Airbus SAS · A321-131
- A28NM Airbus SAS · A321-211
- A28NM Airbus SAS · A321-212
- A28NM Airbus SAS · A321-213
- A28NM Airbus SAS · A321-231
- A28NM Airbus SAS · A321-232
- A28NM Airbus SAS · A321-251N
- A28NM Airbus SAS · A321-251NX
- A28NM Airbus SAS · A321-252N
- A28NM Airbus SAS · A321-252NX
- A28NM Airbus SAS · A321-253N
- A28NM Airbus SAS · A321-253NX
- A28NM Airbus SAS · A321-271N
- A28NM Airbus SAS · A321-271NX
- A28NM Airbus SAS · A321-272N
- A28NM Airbus SAS · A321-272NX
Certification basis — 14 CFR
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗