FAA · Supplemental Type Certificate
STC SA1857SW
Installation of B.F. Goodrich type 25S de-ice boot.
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 (7)
- A2PC Mitsubishi Heavy Industries Ltd. · MU-2B-10
- A2PC Mitsubishi Heavy Industries Ltd. · MU-2B-15
- A2PC Mitsubishi Heavy Industries Ltd. · MU-2B-20
- A2PC Mitsubishi Heavy Industries Ltd. · MU-2B-25
- A2PC Mitsubishi Heavy Industries Ltd. · MU-2B-30
- A2PC Mitsubishi Heavy Industries Ltd. · MU-2B-35
- A2PC Mitsubishi Heavy Industries Ltd. · MU-2B
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗