FAA · Supplemental Type Certificate
STC SA167CH
Surrendered and incorporated into STC SA00478CH.
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 (14)
- 574 Commonwealth Aircraft Inc. · 7000 Deluxe
- 574 Commonwealth Aircraft Inc. · 7000
- 661 Commonwealth Aircraft Inc. · 6000M
- A-591 Commonwealth Aircraft Inc. · 8500
- A-591 Commonwealth Aircraft Inc. · 9000-L
- A-591 Commonwealth Aircraft Inc. · 9000-L Deluxe
- A-591 Commonwealth Aircraft Inc. · 9000-KR Deluxe
- A-591 Commonwealth Aircraft Inc. · 9000-KR
- A-591 Commonwealth Aircraft Inc. · 8500 Deluxe
- A-729 Commonwealth Aircraft Inc. · 180
- A-729 Commonwealth Aircraft Inc. · 180F
- A-729 Commonwealth Aircraft Inc. · 190F
- A-729 Commonwealth Aircraft Inc. · 175
- ATC 653 Commonwealth Aircraft Inc. · 6000
Certification basis — 14 CFR
Specific sections
- Sec. 111
- Sec. 113
- Sec. 115
- Sec. 117
- Sec. 119
- Sec. 120
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗