STC SA4025NM
Historical · Issued · Aircraft · Small Airplane · Rev 12/03/1987 · FAA STC database
Modification to increase the gross weight from 5110 lbs. on landplanes or 5090 lbs. on floatplanes to 5370 lbs. View PDF on drs.faa.gov ↗
The STC PDF is authoritative: installation instructions, ICA requirements and limitations.