SA09524SCOther aircraft modifications
Conversion of existing Piper air conditioning system from R12 to R134a refrigerant.
FAA holder: Steinbach & Associates, Inc.
FAA-listed STC holder
Steinbach & Associates, Inc. STCs
The Jun 30, 2026 FAA DRS snapshot lists 4 selected supplemental type certificates with status Current under Steinbach & Associates, Inc.. The records span 86 public aircraft directories and 1 modification categories. This is a research directory, not a claim that any specific kit or service is currently offered.
4
listed Current at snapshot
86
aircraft directories
1
modification categories
Mar 26, 2002
latest recorded revision
Modification mix
Other aircraft modifications4
Aircraft represented
Learjet Learjet 3576 STCsLearjet Learjet 35A (C-21A)75 STCsCessna Aircraft 41473 STCsLearjet Learjet 36A67 STCsLearjet Learjet 3667 STCsCessna Aircraft 34064 STCsCessna Aircraft 40163 STCsCessna Aircraft 40263 STCsPiper Aircraft PA-28-14061 STCsPiper Aircraft PA-31-35057 STCsPiper Aircraft PA-28-18056 STCsPiper Aircraft PA-31-32553 STCsPiper Aircraft PA-28-16148 STCsPiper Aircraft PA-28-18148 STCsPiper Aircraft PA-34-200T48 STCsPiper Aircraft PA-28R-20047 STCsPiper Aircraft PA-28R-201T47 STCsCessna Aircraft 42147 STCsPiper Aircraft PA-28R-20144 STCsPiper Aircraft PA-32R-301 (SP)44 STCs
Recently revised records
Showing the 4 most recently revised records. Category directories provide the complete paginated discovery path.
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ST09524SCOther aircraft modifications
Piper conversion of air conditioning systems from using R12 to R134a refrigerant on aircraft models listed. For PA-31-300 s/n 31-660, 31-712 thru 31-900, 31-7300901& up. For PA-31-325 sns 31-7400990 & up. PA-31-350 sns, 31-5001& 31-5003, 31-7305005 up.
FAA holder: Steinbach & Associates, Inc.
SA09472SCOther aircraft modifications
Modifications are only applicable to air conditioner systems.
FAA holder: Steinbach & Associates, Inc.
ST09568SCOther aircraft modifications
Modification of existing refrigerant R12 air conditioning systems to convert them into refrigerant R134a systems on the aircraft identified above.
FAA holder: Steinbach & Associates, Inc.