FAA · Supplemental Type Certificate
STC SR01749NY
Removal of seats in passenger cabin to limit the maximum seating to nine passengers per Carson Helicopters, Inc. Report No. CHI-1000 latest revision. Limited to installation on serial numbers 61216, 61220, 61242, and 61744 ONLY that have been modified to short fuselage configuration.
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 (1)
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 ↗