--- title: "STCs in GROUP 3 AEROPLANES — Part-66 · Avioverse" description: "GROUP 3: PISTON-ENGINE AEROPLANES (other than those in Group 1) (STC) STC holder Model Type of structure Part-66 type rating endorsement Note MTOM ≤2T…" url: "https://avioverse.aero/regulations/easa/continuing-airworthiness/part-66/appendices-to-amc-to-annex-iii-part-66/stcs-in-group-3-aeroplanes" --- # STCs in GROUP 3 AEROPLANES Annex III (Part-66) · Regulation (EU) No 1321/2014 · EAR revision 2 Sep 2025 IR Implementing rule ## STCs in GROUP 3 AEROPLANES | GROUP 3: PISTON-ENGINE AEROPLANES (other than those in Group 1) (STC) | | | | | | | | --------------------------------------------------------------------- | ------------ | ----------------- | --------------------------------------------------- | --------------------- | ---- | --- | | STC holder | Model | Type of structure | Part-66 type rating endorsement | Note | MTOM | | | | | | | | ≤2T | >2T | | BARBARA AND ROBERT WILLIAMS (STC) | 150 | Metal | Cessna 150 Series (Lycoming) | ELA1. STC No 10015952 | X | | | BARBARA AND ROBERT WILLIAMS (STC) | 150A | Metal | Cessna 150 Series (Lycoming) | ELA1. STC No 10015952 | X | | | BARBARA AND ROBERT WILLIAMS (STC) | 150B | Metal | Cessna 150 Series (Lycoming) | ELA1. STC No 10015952 | X | | | BARBARA AND ROBERT WILLIAMS (STC) | 150C | Metal | Cessna 150 Series (Lycoming) | ELA1. STC No 10015952 | X | | | BARBARA AND ROBERT WILLIAMS (STC) | 150D | Metal | Cessna 150 Series (Lycoming) | ELA1. STC No 10015952 | X | | | BARBARA AND ROBERT WILLIAMS (STC) | 150E | Metal | Cessna 150 Series (Lycoming) | ELA1. STC No 10015952 | X | | | BARBARA AND ROBERT WILLIAMS (STC) | 150F | Metal | Cessna 150 Series (Lycoming) | ELA1. STC No 10015952 | X | | | BARBARA AND ROBERT WILLIAMS (STC) | 150G | Metal | Cessna 150 Series (Lycoming) | ELA1. STC No 10015952 | X | | | BARBARA AND ROBERT WILLIAMS (STC) | 150H | Metal | Cessna 150 Series (Lycoming) | ELA1. STC No 10015952 | X | | | BARBARA AND ROBERT WILLIAMS (STC) | 150J | Metal | Cessna 150 Series (Lycoming) | ELA1. STC No 10015952 | X | | | BARBARA AND ROBERT WILLIAMS (STC) | 150K | Metal | Cessna 150 Series (Lycoming) | ELA1. STC No 10015952 | X | | | BARBARA AND ROBERT WILLIAMS (STC) | 150L | Metal | Cessna 150 Series (Lycoming) | ELA1. STC No 10015952 | X | | | BARBARA AND ROBERT WILLIAMS (STC) | 150M | Metal | Cessna 150 Series (Lycoming) | ELA1. STC No 10015952 | X | | | BARBARA AND ROBERT WILLIAMS (STC) | A150K | Metal | Cessna 150 Series (Lycoming) | ELA1. STC No 10015952 | X | | | BARBARA AND ROBERT WILLIAMS (STC) | A150L | Metal | Cessna 150 Series (Lycoming) | ELA1. STC No 10015952 | X | | | CEAPR (STC) | DR 400/120 D | Wood | Robin DR 400 (Thielert) | ELA1. STC No 10014219 | X | | | CEAPR (STC) | DR 400/140 B | Wood | Robin DR 400 (Thielert) | ELA1. STC No 10014219 | X | | | CEAPR (STC) | DR 400/180 R | Wood | Robin DR 400 (Thielert) | ELA1. STC No 10014219 | X | | | CEAPR (STC) | DR 400/200 R | Wood | Robin DR 400 (Thielert) | ELA1. STC No 10014219 | X | | | CEAPR (STC) | DR 400/RP | Wood | Robin DR 400 (Thielert) | ELA1. STC No 10014219 | X | | | HOFFMANN GmbH & Co. KG (STC) | 150 | Metal | Cessna 150/A150/F150/FA150 (Rotax) | ELA1. STC | X | | | HOFFMANN GmbH & Co. KG (STC) | A150 | Metal | Cessna 150/A150/F150/FA150 (Rotax) | ELA1. STC | X | | | HOFFMANN GmbH & Co. KG (STC) | F150 | Metal | Cessna 150/A150/F150/FA150 (Rotax) | ELA1. STC | X | | | HOFFMANN GmbH & Co. KG (STC) | FA150 | Metal | Cessna 150/A150/F150/FA150 (Rotax) | ELA1. STC | X | | | LTB SAMMET GmbH (STC) | 150D | Metal | Cessna 150 (Rotax) | ELA1. STC No 10015134 | X | | | LTB SAMMET GmbH (STC) | 150E | Metal | Cessna 150 (Rotax) | ELA1. STC No 10015134 | X | | | LTB SAMMET GmbH (STC) | 150F | Metal | Cessna 150 (Rotax) | ELA1. STC No 10015134 | X | | | LTB SAMMET GmbH (STC) | 150G | Metal | Cessna 150 (Rotax) | ELA1. STC No 10015134 | X | | | LTB SAMMET GmbH (STC) | 150H | Metal | Cessna 150 (Rotax) | ELA1. STC No 10015134 | X | | | LTB SAMMET GmbH (STC) | 150J | Metal | Cessna 150 (Rotax) | ELA1. STC No 10015134 | X | | | LTB SAMMET GmbH (STC) | 150K | Metal | Cessna 150 (Rotax) | ELA1. STC No 10015134 | X | | | LTB SAMMET GmbH (STC) | 150L | Metal | Cessna 150 (Rotax) | ELA1. STC No 10015134 | X | | | LTB SAMMET GmbH (STC) | 150M | Metal | Cessna 150 (Rotax) | ELA1. STC No 10015134 | X | | | LTB SAMMET GmbH (STC) | A150L | Metal | Cessna 150 (Rotax) | ELA1. STC No 10015134 | X | | | LTB SAMMET GmbH (STC) | F150G | Metal | Cessna 150 (Rotax) | ELA1. STC No 10015134 | X | | | LTB SAMMET GmbH (STC) | F150H | Metal | Cessna 150 (Rotax) | ELA1. STC No 10015134 | X | | | LTB SAMMET GmbH (STC) | F150J | Metal | Cessna 150 (Rotax) | ELA1. STC No 10015134 | X | | | LTB SAMMET GmbH (STC) | F150K | Metal | Cessna 150 (Rotax) | ELA1. STC No 10015134 | X | | | LTB SAMMET GmbH (STC) | F150L | Metal | Cessna 150 (Rotax) | ELA1. STC No 10015134 | X | | | LTB SAMMET GmbH (STC) | F150M | Metal | Cessna 150 (Rotax) | ELA1. STC No 10015134 | X | | | LTB SAMMET GmbH (STC) | FA150K | Metal | Cessna 150 (Rotax) | ELA1. STC No 10015134 | X | | | PORSCHE AG (STC) | 182Q | Metal | Cessna 182Q/F182Q (Porsche) | ELA2. STC | X | | | PORSCHE AG (STC) | F182Q | Metal | Cessna 182Q/F182Q (Porsche) | ELA2. STC | X | | | SAFRAN ENGINES SAS (STC) | 182M | Metal | Cessna 182/F182 Series (SMA) | ELA2. STC No 10013975 | | | | SAFRAN ENGINES SAS (STC) | 182N | Metal | Cessna 182/F182 Series (SMA) | ELA2. STC No 10013975 | | | | SAFRAN ENGINES SAS (STC) | 182P | Metal | Cessna 182/F182 Series (SMA) | ELA2. STC No 10013975 | | | | SAFRAN ENGINES SAS (STC) | 182Q | Metal | Cessna 182/F182 Series (SMA) | ELA2. STC No 10013975 | | | | SAFRAN ENGINES SAS (STC) | 182R | Metal | Cessna 182/F182 Series (SMA) | ELA2. STC No 10013975 | | | | SAFRAN ENGINES SAS (STC) | F182P | Metal | Cessna 182/F182 Series (SMA) | ELA2. STC No 10013975 | | | | SAFRAN ENGINES SAS (STC) | F182Q | Metal | Cessna 182/F182 Series (SMA) | ELA2. STC No 10013975 | | | | SMA ENGINES INC. (STC) | 182Q | Metal | Cessna 182/F182 Series (SMA) | ELA2. STC No 10016495 | X | | | SMA ENGINES INC. (STC) | 182R | Metal | Cessna 182/F182 Series (SMA) | ELA2. STC No 10016495 | X | | | SPERL TECHNIK & ENTWICKLUNGEN (STC) | 150 | Metal | Cessna 150/A150/F150/FA150 (Rotax) | ELA1. STC | X | | | SPERL TECHNIK & ENTWICKLUNGEN (STC) | A150 | Metal | Cessna 150/A150/F150/FA150 (Rotax) | ELA1. STC | X | | | SPERL TECHNIK & ENTWICKLUNGEN (STC) | F150 | Metal | Cessna 150/A150/F150/FA150 (Rotax) | ELA1. STC | X | | | SPERL TECHNIK & ENTWICKLUNGEN (STC) | FA150 | Metal | Cessna 150/A150/F150/FA150 (Rotax) | ELA1. STC | X | | | TECHNIFY MOTORS GmbH (STC) | 172F | Metal | Cessna 172/F172 (Technify) | ELA1. STC No 10014287 | X | | | TECHNIFY MOTORS GmbH (STC) | 172G | Metal | Cessna 172/F172 (Technify) | ELA1. STC No 10014287 | X | | | TECHNIFY MOTORS GmbH (STC) | 172H | Metal | Cessna 172/F172 (Technify) | ELA1. STC No 10014287 | X | | | TECHNIFY MOTORS GmbH (STC) | 172I | Metal | Cessna 172/F172 (Technify) | ELA1. STC No 10014287 | X | | | TECHNIFY MOTORS GmbH (STC) | 172K | Metal | Cessna 172/F172 (Technify) | ELA1. STC No 10014287 | X | | | TECHNIFY MOTORS GmbH (STC) | 172L | Metal | Cessna 172/F172 (Technify) | ELA1. STC No 10014287 | X | | | TECHNIFY MOTORS GmbH (STC) | 172M | Metal | Cessna 172/F172 (Technify) | ELA1. STC No 10014287 | X | | | TECHNIFY MOTORS GmbH (STC) | 172N | Metal | Cessna 172/F172 (Technify) | ELA1. STC No 10014287 | X | | | TECHNIFY MOTORS GmbH (STC) | 172P | Metal | Cessna 172/F172 (Technify) | ELA1. STC No 10014287 | X | | | TECHNIFY MOTORS GmbH (STC) | 172R | Metal | Cessna 172/F172 (Technify) | ELA1. STC No 10014287 | X | | | TECHNIFY MOTORS GmbH (STC) | 172S | Metal | Cessna 172/F172 (Technify) | ELA1. STC No 10014287 | X | | | TECHNIFY MOTORS GmbH (STC) | F172F | Metal | Cessna 172/F172 (Technify) | ELA1. STC No 10014287 | X | | | TECHNIFY MOTORS GmbH (STC) | F172G | Metal | Cessna 172/F172 (Technify) | ELA1. STC No 10014287 | X | | | TECHNIFY MOTORS GmbH (STC) | F172H | Metal | Cessna 172/F172 (Technify) | ELA1. STC No 10014287 | X | | | TECHNIFY MOTORS GmbH (STC) | F172K | Metal | Cessna 172/F172 (Technify) | ELA1. STC No 10014287 | X | | | TECHNIFY MOTORS GmbH (STC) | F172L | Metal | Cessna 172/F172 (Technify) | ELA1. STC No 10014287 | X | | | TECHNIFY MOTORS GmbH (STC) | F172M | Metal | Cessna 172/F172 (Technify) | ELA1. STC No 10014287 | X | | | TECHNIFY MOTORS GmbH (STC) | F172N | Metal | Cessna 172/F172 (Technify) | ELA1. STC No 10014287 | X | | | TECHNIFY MOTORS GmbH (STC) | F172P | Metal | Cessna 172/F172 (Technify) | ELA1. STC No 10014287 | X | | | TECHNIFY MOTORS GmbH (STC) | T206H | Metal | Cessna 206 (Technify) | ELA2. STC No 10014500 | X | | | TECHNIFY MOTORS GmbH (STC) | TU206F | Metal | Cessna 206 (Technify) | ELA2. STC No 10014500 | X | | | TECHNIFY MOTORS GmbH (STC) | TU206G | Metal | Cessna 206 (Technify) | ELA2. STC No 10014500 | X | | | TECHNIFY MOTORS GmbH (STC) | U206F | Metal | Cessna 206 (Technify) | ELA2. STC No 10014500 | X | | | TECHNIFY MOTORS GmbH (STC) | U206G | Metal | Cessna 206 (Technify) | ELA2. STC No 10014500 | X | | | TECHNIFY MOTORS GmbH (STC) | U206H | Metal | Cessna 206 (Technify) | ELA2. STC No 10014500 | X | | | TECHNIFY MOTORS GmbH (STC) | SR22 | Composite | Cirrus SR22 (Technify) | ELA2. STC | X | | | TECHNIFY MOTORS GmbH (STC) | PA-28-140 | Metal | Piper PA-28-140/150/151/160/ 161/180/181 (Technify) | ELA1. STC No 10014364 | X | | | TECHNIFY MOTORS GmbH (STC) | PA-28-150 | Metal | Piper PA-28-140/150/151/160/ 161/180/181 (Technify) | ELA1. STC No 10014364 | X | | | TECHNIFY MOTORS GmbH (STC) | PA-28-151 | Metal | Piper PA-28-140/150/151/160/ 161/180/181 (Technify) | ELA1. STC No 10014364 | X | | | TECHNIFY MOTORS GmbH (STC) | PA-28-160 | Metal | Piper PA-28-140/150/151/160/ 161/180/181 (Technify) | ELA1. STC No 10014364 | X | | | TECHNIFY MOTORS GmbH (STC) | PA-28-161 | Metal | Piper PA-28-140/150/151/160/ 161/180/181 (Technify) | ELA1. STC No 10014364 | X | | | TECHNIFY MOTORS GmbH (STC) | PA-28-180 | Metal | Piper PA-28-140/150/151/160/ 161/180/181 (Technify) | ELA1. STC No 10014364 | X | | | TECHNIFY MOTORS GmbH (STC) | PA-28-181 | Metal | Piper PA-28-140/150/151/160/ 161/180/181 (Technify) | ELA1. STC No 10014364 | X | | 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.