FAA · Supplemental Type Certificate
STC SA01639NY
Replacement of 12 refrigerant in air conditioning system with Enviro Refrigerant Hotshot R414B.
What is an STC?
A Supplemental Type Certificate authorizes a major modification or alteration to an FAA-certificated aircraft. STCs are how operators legally install new avionics, change fuel systems, add floats, swap engines, etc. — every change beyond a minor modification needs one.
Applicable aircraft (193)
- A17SW Air Tractor Inc. · AT-401
- A17SW Air Tractor Inc. · AT-401A
- A17SW Air Tractor Inc. · AT-401B
- A17SW Air Tractor Inc. · AT-402
- A17SW Air Tractor Inc. · AT-402A
- A17SW Air Tractor Inc. · AT-402B
- A17SW Air Tractor Inc. · AT-501
- A17SW Air Tractor Inc. · AT-502
- A17SW Air Tractor Inc. · AT-502A
- A17SW Air Tractor Inc. · AT-502B
- A17SW Air Tractor Inc. · AT-503
- A17SW Air Tractor Inc. · AT-503A
- A19SW Air Tractor Inc. · AT-602
- A19SW Air Tractor Inc. · AT-802
- A19SW Air Tractor Inc. · AT-802A
- A9SW Air Tractor Inc. · AT-250
- A9SW Air Tractor Inc. · AT-300
- A9SW Air Tractor Inc. · AT-301
- A9SW Air Tractor Inc. · AT-302
- A9SW Air Tractor Inc. · AT-400
- A9SW Air Tractor Inc. · AT-400A
- 1A16 Allied Ag Cat Productions Inc. · G-164
- 1A16 Allied Ag Cat Productions Inc. · G-164A
- 1A16 Allied Ag Cat Productions Inc. · G-164B
- 1A16 Allied Ag Cat Productions Inc. · G-164B-15T
- 1A16 Allied AgCat Productions Inc. · G-164B-20T
- 1A16 Allied Ag Cat Productions Inc. · G-164B-34T
- 1A16 Allied Ag Cat Productions Inc. · G-164B (with 73 inch wing gap)
- 1A16 Allied Ag Cat Productions Inc. · G-164C
- 1A16 Allied Ag Cat Productions Inc. · G-164D
- 1A16 Allied Ag Cat Productions Inc. · G-164D (with 73 inch wing gap)
- 2A7 Ayres Corporation · 600-S-2C
- 2A7 Ayres Corporation · S-2B
- 2A7 Ayres Corporation · S-2C
- A3SW Ayres Corporation · 600 S-2D
- A3SW Ayres Corporation · S-2R
- A3SW Ayres Corporation · S2R-R1340
- A3SW Ayres Corporation · S2R-R3S
- A3SW Ayres Corporation · S2R-T11
- A3SW Ayres Corporation · S2R-T15
- A3SW Ayres Corporation · S2R-T34
- A4SW Ayres Corporation · 600 S-2D
- A4SW Ayres Corporation · S-2R
- A4SW Ayres Corporation · S2R-G1
- A4SW Ayres Corporation · S2R-G10
- A4SW Ayres Corporation · S2R-G5
- A4SW Ayres Corporation · S2R-G6
- A4SW Ayres Corporation · S2R-R1340
- A4SW Ayres Corporation · S2R-R1820
- A4SW Ayres Corporation · S2R-R3S
+ 143 more aircraft
Certification basis — 14 CFR
Specific sections
- Sec. 111
- Sec. 113
- Sec. 115
- Sec. 117
- Sec. 119
- Sec. 120
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗