--- title: "STCs in SUBGROUP 2a AEROPLANES — Part-66 · Avioverse" description: "SUBGROUP 2a: SINGLE TURBO-PROPELLER ENGINE AEROPLANES (Other than those in Group 1) (STC) STC holder Model Com." url: "https://avioverse.aero/regulations/easa/continuing-airworthiness/part-66/appendices-to-amc-to-annex-iii-part-66/stcs-in-subgroup-2a-aeroplanes" --- # STCs in SUBGROUP 2a AEROPLANES Annex III (Part-66) · Regulation (EU) No 1321/2014 · EAR revision 2 Sep 2025 IR Implementing rule ## STCs in SUBGROUP 2a AEROPLANES | SUBGROUP 2a: SINGLE TURBO-PROPELLER ENGINE AEROPLANES (Other than those in Group 1) (STC) | | | | | | ----------------------------------------------------------------------------------------- | ----------- | ----------- | ---------------------------------- | -------------------------------------------------------------- | | STC holder | Model | Com. des. | Part-66 type rating endorsement | Note | | AERO TWIN, Inc. (STC) | Cessna 208 | Cessna 208 | Cessna 208/208B (Honeywell TPE331) | STC No 10033295 | | AERO TWIN, Inc. (STC) | Cessna 208B | Cessna 208B | Cessna 208/208B (Honeywell TPE331) | STC No 10033295 | | Eichenberger Aviation AG (STC) | P210N | | Cessna P210N (RR Corp 250) | ELA2. STC FAA SA1003NE LBA ref.: 0779/625b EASA ref.: 10060053 | | JETPROP, LLC. (STC) | PA-46-350P | Mirage | Piper PA-46 Pressurised (PWC PT6) | ELA2. STC Nos 10015707, 10016000. | | JETPROP, LLC. (STC) | PA-46-310P | | Piper PA-46 Pressurised (PWC PT6) | ELA2. STC Nos 10015707, 10016000. | | SOLOY, LLC (STC) | 206H | | Cessna 206 (RR Corp 250) | ELA2. STC No 10027209 | | SOLOY, LLC (STC) | T206H | | Cessna 206 (RR Corp 250) | ELA2. STC No 10027209 | | SOLOY, LLC (STC) | TU206G | | Cessna 206 (RR Corp 250) | ELA2. STC No 10027209 | | SOLOY, LLC (STC) | U206G | | Cessna 206 (RR Corp 250) | ELA2. STC No 10027209 | | SOLOY, LLC (STC) | 207 | | Cessna 207 (RR Corp 250) | ELA2. STC | | SOLOY, LLC (STC) | 207A | | Cessna 207 (RR Corp 250) | ELA2. STC | | SOLOY, LLC (STC) | T207 | | Cessna 207 (RR Corp 250) | ELA2. STC | | SOLOY, LLC (STC) | T207A | | Cessna 207 (RR Corp 250) | ELA2. STC | | SUPERVAN SYSTEMS, Ltd. (STC) | Cessna 208 | Cessna 208 | Cessna 208/208B (Honeywell TPE331) | STC No 10033267 | | SUPERVAN SYSTEMS, Ltd. (STC) | Cessna 208B | Cessna 208B | Cessna 208/208B (Honeywell TPE331) | STC No 10033267 | | Tradewind Turbines/Soloy (STC) | Beech A36 | | Beech 36 Series (RR Corp 250) | ELA2. STC LBA ref.: SA 1034. FAA STC SA3523NM. | | Tradewind Turbines/Soloy (STC) | Beech A36TC | | Beech 36 Series (RR Corp 250) | ELA2. STC LBA ref.: SA 1034. FAA STC SA3523NM. | | Turbine Conversions, LTD (STC) | 206 | | Cessna 206 (PWC PT6) | ELA2. STC No 10061949 | | Turbine Conversions, LTD (STC) | 206H | | Cessna 206 (PWC PT6) | ELA2. STC No 10061949 | | Turbine Conversions, LTD (STC) | P206 | | Cessna 206 (PWC PT6) | ELA2. STC No 10061949 | | Turbine Conversions, LTD (STC) | P206A | | Cessna 206 (PWC PT6) | ELA2. STC No 10061949 | | Turbine Conversions, LTD (STC) | P206B | | Cessna 206 (PWC PT6) | ELA2. STC No 10061949 | | Turbine Conversions, LTD (STC) | P206C | | Cessna 206 (PWC PT6) | ELA2. STC No 10061949 | | Turbine Conversions, LTD (STC) | P206D | | Cessna 206 (PWC PT6) | ELA2. STC No 10061949 | | Turbine Conversions, LTD (STC) | P206E | | Cessna 206 (PWC PT6) | ELA2. STC No 10061949 | | Turbine Conversions, LTD (STC) | T206H | | Cessna 206 (PWC PT6) | ELA2. STC No 10061949 | | Turbine Conversions, LTD (STC) | TP206A | | Cessna 206 (PWC PT6) | ELA2. STC No 10061949 | | Turbine Conversions, LTD (STC) | TP206B | | Cessna 206 (PWC PT6) | ELA2. STC No 10061949 | | Turbine Conversions, LTD (STC) | TP206C | | Cessna 206 (PWC PT6) | ELA2. STC No 10061949 | | Turbine Conversions, LTD (STC) | TP206D | | Cessna 206 (PWC PT6) | ELA2. STC No 10061949 | | Turbine Conversions, LTD (STC) | TP206E | | Cessna 206 (PWC PT6) | ELA2. STC No 10061949 | | Turbine Conversions, LTD (STC) | TU206A | | Cessna 206 (PWC PT6) | ELA2. STC No 10061949 | | Turbine Conversions, LTD (STC) | TU206B | | Cessna 206 (PWC PT6) | ELA2. STC No 10061949 | | Turbine Conversions, LTD (STC) | TU206C | | Cessna 206 (PWC PT6) | ELA2. STC No 10061949 | | Turbine Conversions, LTD (STC) | TU206D | | Cessna 206 (PWC PT6) | ELA2. STC No 10061949 | | Turbine Conversions, LTD (STC) | TU206E | | Cessna 206 (PWC PT6) | ELA2. STC No 10061949 | | Turbine Conversions, LTD (STC) | TU206F | | Cessna 206 (PWC PT6) | ELA2. STC No 10061949 | | Turbine Conversions, LTD (STC) | TU206G | | Cessna 206 (PWC PT6) | ELA2. STC No 10061949 | | Turbine Conversions, LTD (STC) | U206 | | Cessna 206 (PWC PT6) | ELA2. STC No 10061949 | | Turbine Conversions, LTD (STC) | U206A | | Cessna 206 (PWC PT6) | ELA2. STC No 10061949 | | Turbine Conversions, LTD (STC) | U206B | | Cessna 206 (PWC PT6) | ELA2. STC No 10061949 | | Turbine Conversions, LTD (STC) | U206C | | Cessna 206 (PWC PT6) | ELA2. STC No 10061949 | | Turbine Conversions, LTD (STC) | U206D | | Cessna 206 (PWC PT6) | ELA2. STC No 10061949 | | Turbine Conversions, LTD (STC) | U206E | | Cessna 206 (PWC PT6) | ELA2. STC No 10061949 | | Turbine Conversions, LTD (STC) | U206F | | Cessna 206 (PWC PT6) | ELA2. STC No 10061949 | | Turbine Conversions, LTD (STC) | U206G | | Cessna 206 (PWC PT6) | ELA2. STC No 10061949 | | WEST PACIFIC AIR, LLC (STC) | B36TC | | Beech 36TC (PWC PT6) | ELA2. STC No 10030059 | IR — Regulation (EU) No 1321/2014 · ED Decision 2019/024/R · Continuing Airworthiness Easy Access Rules · EAR revision 2 Sep 2025 [All rules in APPENDICES TO AMC TO ANNEX III (Part-66)](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-66/appendices-to-amc-to-annex-iii-part-66) Consolidated from the EASA Easy Access Rules (revision 2 Sep 2025, extracted 13 Oct 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.