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. View PDF on drs.faa.gov ↗

The STC PDF is authoritative: installation instructions, ICA requirements and limitations.