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Who holds what · as the FAA records the name

Legacystc.Com

Holds 4 approved modifications, most of them for the Cessna 182 Skylane. FAA spelling: LegacySTC.com.

Approved modifications 4 · newest first

2025-04-03SA316SO · Carburetor ice detector. · 172, 182, 150
2025-04-03SE208SO · Installation of ice indicator in the carburetor. · A-50 Series, A-65 Series, A-75 Series
2025-04-03SE1311SO · Installation of Shivers carburetor temperature gauge with a Richter Aero Equipment B-5 carburetor temperature probe. · 4AC-150 Series, 6AC-298 Series, 6AL-315 Series
2025-04-03SA270SO · Water and ice detector in fuel gascolator and carburetor. · PA-12, PA-12S, 150

Source: FAA Dynamic Regulatory System (type certificate data sheets, supplemental type certificates, technical standard order authorisations). An organisation's name is as the FAA spelled it on each record; related spellings are separate pages.