FAA · Supplemental Type Certificate
STC SA177EA
Installation of Monitair angle of attach system, Model AA-2.
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 (16)
- 3A15 Raytheon Aircraft Company · J35
- 3A15 Raytheon Aircraft Company · K35
- 3A15 Raytheon Aircraft Company · M35
- 3A15 Raytheon Aircraft Company · N35
- 3A15 Raytheon Aircraft Company · 35-33
- 3A15 Raytheon Aircraft Company · 35-A33
- 3A15 Raytheon Aircraft Company · H35
- A-777 Raytheon Aircraft Company · F35
- A-777 Raytheon Aircraft Company · A35
- A-777 Raytheon Aircraft Company · B35
- A-777 Raytheon Aircraft Company · C35
- A-777 Raytheon Aircraft Company · E35
- A-777 Raytheon Aircraft Company · G35
- A-777 Raytheon Aircraft Company · 35R
- A-777 Raytheon Aircraft Company · 35
- A-777 Raytheon Aircraft Company · D35
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗