# STC SA01639NY

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Scale Modelbuilders Inc., Canada
- Description: Replacement of 12 refrigerant in air conditioning system with Enviro Refrigerant Hotshot R414B.
- Applied: December 12, 2002
- Status date: June 1, 2004
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A17SW](https://openairdocs.org/tcds/A17SW), [TCDS A19SW](https://openairdocs.org/tcds/A19SW), [TCDS A9SW](https://openairdocs.org/tcds/A9SW), [TCDS 1A16](https://openairdocs.org/tcds/1A16), [TCDS 2A7](https://openairdocs.org/tcds/2A7), [TCDS A3SW](https://openairdocs.org/tcds/A3SW), [TCDS A4SW](https://openairdocs.org/tcds/A4SW), [TCDS 3A15](https://openairdocs.org/tcds/3A15), [TCDS 3A16](https://openairdocs.org/tcds/3A16), [TCDS 3A20](https://openairdocs.org/tcds/3A20), [TCDS A-777](https://openairdocs.org/tcds/A-777), [TCDS A12CE](https://openairdocs.org/tcds/A12CE), [TCDS A14CE](https://openairdocs.org/tcds/A14CE), [TCDS A16SW](https://openairdocs.org/tcds/A16SW), [TCDS A23CE](https://openairdocs.org/tcds/A23CE), [TCDS A24CE](https://openairdocs.org/tcds/A24CE), [TCDS A29CE](https://openairdocs.org/tcds/A29CE), [TCDS A31CE](https://openairdocs.org/tcds/A31CE)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D2E1CE440B62E62086256EC1006F73DC.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA01639NY

## ADs that name it (0)

None.

## Approved models (193, first 50)

- Air Tractor Inc. AT-250 ([TCDS A9SW](https://openairdocs.org/tcds/A9SW))
- Air Tractor Inc. AT-300 ([TCDS A9SW](https://openairdocs.org/tcds/A9SW))
- Air Tractor Inc. AT-301 ([TCDS A9SW](https://openairdocs.org/tcds/A9SW))
- Air Tractor Inc. AT-302 ([TCDS A9SW](https://openairdocs.org/tcds/A9SW))
- Air Tractor Inc. AT-400 ([TCDS A9SW](https://openairdocs.org/tcds/A9SW))
- Air Tractor Inc. AT-400A ([TCDS A9SW](https://openairdocs.org/tcds/A9SW))
- Air Tractor Inc. AT-401 ([TCDS A17SW](https://openairdocs.org/tcds/A17SW))
- Air Tractor Inc. AT-401A ([TCDS A17SW](https://openairdocs.org/tcds/A17SW))
- Air Tractor Inc. AT-401B ([TCDS A17SW](https://openairdocs.org/tcds/A17SW))
- Air Tractor Inc. AT-402 ([TCDS A17SW](https://openairdocs.org/tcds/A17SW))
- Air Tractor Inc. AT-402A ([TCDS A17SW](https://openairdocs.org/tcds/A17SW))
- Air Tractor Inc. AT-402B ([TCDS A17SW](https://openairdocs.org/tcds/A17SW))
- Air Tractor Inc. AT-501 ([TCDS A17SW](https://openairdocs.org/tcds/A17SW))
- Air Tractor Inc. AT-502 ([TCDS A17SW](https://openairdocs.org/tcds/A17SW))
- Air Tractor Inc. AT-502A ([TCDS A17SW](https://openairdocs.org/tcds/A17SW))
- Air Tractor Inc. AT-502B ([TCDS A17SW](https://openairdocs.org/tcds/A17SW))
- Air Tractor Inc. AT-503 ([TCDS A17SW](https://openairdocs.org/tcds/A17SW))
- Air Tractor Inc. AT-503A ([TCDS A17SW](https://openairdocs.org/tcds/A17SW))
- Air Tractor Inc. AT-602 ([TCDS A19SW](https://openairdocs.org/tcds/A19SW))
- Air Tractor Inc. AT-802 ([TCDS A19SW](https://openairdocs.org/tcds/A19SW))
- Air Tractor Inc. AT-802A ([TCDS A19SW](https://openairdocs.org/tcds/A19SW))
- Allied Ag Cat Productions Inc. G-164 ([TCDS 1A16](https://openairdocs.org/tcds/1A16))
- Allied Ag Cat Productions Inc. G-164A ([TCDS 1A16](https://openairdocs.org/tcds/1A16))
- Allied Ag Cat Productions Inc. G-164B ([TCDS 1A16](https://openairdocs.org/tcds/1A16))
- Allied Ag Cat Productions Inc. G-164B (with 73 inch wing gap) ([TCDS 1A16](https://openairdocs.org/tcds/1A16))
- Allied Ag Cat Productions Inc. G-164B-15T ([TCDS 1A16](https://openairdocs.org/tcds/1A16))
- Allied Ag Cat Productions Inc. G-164B-34T ([TCDS 1A16](https://openairdocs.org/tcds/1A16))
- Allied Ag Cat Productions Inc. G-164C ([TCDS 1A16](https://openairdocs.org/tcds/1A16))
- Allied Ag Cat Productions Inc. G-164D ([TCDS 1A16](https://openairdocs.org/tcds/1A16))
- Allied Ag Cat Productions Inc. G-164D (with 73 inch wing gap) ([TCDS 1A16](https://openairdocs.org/tcds/1A16))
- Allied AgCat Productions Inc. G-164B-20T ([TCDS 1A16](https://openairdocs.org/tcds/1A16))
- Ayres Corporation 600 S-2D ([TCDS A3SW](https://openairdocs.org/tcds/A3SW))
- Ayres Corporation 600 S-2D ([TCDS A4SW](https://openairdocs.org/tcds/A4SW))
- Ayres Corporation 600-S-2C ([TCDS 2A7](https://openairdocs.org/tcds/2A7))
- Ayres Corporation S-2B ([TCDS 2A7](https://openairdocs.org/tcds/2A7))
- Ayres Corporation S-2C ([TCDS 2A7](https://openairdocs.org/tcds/2A7))
- Ayres Corporation S-2R ([TCDS A3SW](https://openairdocs.org/tcds/A3SW))
- Ayres Corporation S-2R ([TCDS A4SW](https://openairdocs.org/tcds/A4SW))
- Ayres Corporation S2R-G1 ([TCDS A4SW](https://openairdocs.org/tcds/A4SW))
- Ayres Corporation S2R-G10 ([TCDS A4SW](https://openairdocs.org/tcds/A4SW))
- Ayres Corporation S2R-G5 ([TCDS A4SW](https://openairdocs.org/tcds/A4SW))
- Ayres Corporation S2R-G6 ([TCDS A4SW](https://openairdocs.org/tcds/A4SW))
- Ayres Corporation S2R-R1340 ([TCDS A3SW](https://openairdocs.org/tcds/A3SW))
- Ayres Corporation S2R-R1340 ([TCDS A4SW](https://openairdocs.org/tcds/A4SW))
- Ayres Corporation S2R-R1820 ([TCDS A4SW](https://openairdocs.org/tcds/A4SW))
- Ayres Corporation S2R-R3S ([TCDS A3SW](https://openairdocs.org/tcds/A3SW))
- Ayres Corporation S2R-R3S ([TCDS A4SW](https://openairdocs.org/tcds/A4SW))
- Ayres Corporation S2R-T11 ([TCDS A3SW](https://openairdocs.org/tcds/A3SW))
- Ayres Corporation S2R-T11 ([TCDS A4SW](https://openairdocs.org/tcds/A4SW))
- Ayres Corporation S2R-T15 ([TCDS A3SW](https://openairdocs.org/tcds/A3SW))

All 193: https://openairdocs.org/stc/SA01639NY/models.md

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