FAA · Supplemental Type Certificate
STC ST04560AT
Replacement of the existing Honeywell HTF7000 engine upper and lower thrust reverser door assemblies with Quiet Technology Aerospace modified upper and lower thrust reverser door assemblies
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 (5)
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 ↗