FAA · Supplemental Type Certificate
STC SE572SW
Installation of Jacobs RAS325A exhaust valve rotocaps.
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 (10)
- E-237 Air Repair Inc. · R-755A1
- E-237 Air Repair Inc. · R-755A2
- E-237 Air Repair Inc. · R-755A2M
- E-237 Air Repair Inc. · R-755A2M1
- E-237 Air Repair Inc. · R-755B1
- E-237 Air Repair Inc. · R-755B2
- E-237 Air Repair Inc. · R-755B2M
- 121 Air Repair Inc. TC · L-4
- 121 Air Repair Inc. TC · L-4 Series
- 195 Air Repair Inc. TC · L-6 Series
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 ↗