# STC SA09524SC - Type: Supplemental type certificate - Status: Current, Amended - Holder: Steinbach & Associates, Inc., United States - Description: Conversion of existing Piper air conditioning system from R12 to R134a refrigerant. - Applied: March 2, 1998 - Status date: March 26, 2002 - Product: Aircraft, Small Airplane - Certification basis: Part 21 - Data sheets: [TCDS 2A13](https://openairdocs.org/tcds/2A13), [TCDS A20SO](https://openairdocs.org/tcds/A20SO), [TCDS A8EA](https://openairdocs.org/tcds/A8EA), [TCDS A3SO](https://openairdocs.org/tcds/A3SO), [TCDS A7SO](https://openairdocs.org/tcds/A7SO), [TCDS A25SO](https://openairdocs.org/tcds/A25SO) - Certificate PDF: https://openairdocs.org/files/sha256/a9/13/a91373d5cc20883003f38476df54bce5ccb1daf72edc65ff22d3209a2600bc61 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E5A0BCB272064FD085256CC1007F3B43.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SA09524SC ## ADs that name it (0) None. ## Approved models (29) - Piper Aircraft Inc. PA-28-140 ([TCDS 2A13](https://openairdocs.org/tcds/2A13)) - Piper Aircraft Inc. PA-28-161 ([TCDS 2A13](https://openairdocs.org/tcds/2A13)) - Piper Aircraft Inc. PA-28-180 ([TCDS 2A13](https://openairdocs.org/tcds/2A13)) - Piper Aircraft Inc. PA-28-181 ([TCDS 2A13](https://openairdocs.org/tcds/2A13)) - Piper Aircraft Inc. PA-28-201T ([TCDS 2A13](https://openairdocs.org/tcds/2A13)) - Piper Aircraft Inc. PA-28-236 ([TCDS 2A13](https://openairdocs.org/tcds/2A13)) - Piper Aircraft Inc. PA-28R-200 ([TCDS 2A13](https://openairdocs.org/tcds/2A13)) - Piper Aircraft Inc. PA-28R-201 ([TCDS 2A13](https://openairdocs.org/tcds/2A13)) - Piper Aircraft Inc. PA-28R-201T ([TCDS 2A13](https://openairdocs.org/tcds/2A13)) - Piper Aircraft Inc. PA-28RT-201 ([TCDS 2A13](https://openairdocs.org/tcds/2A13)) - Piper Aircraft Inc. PA-28RT-201T ([TCDS 2A13](https://openairdocs.org/tcds/2A13)) - Piper Aircraft Inc. PA-31-300 ([TCDS A20SO](https://openairdocs.org/tcds/A20SO)) - Piper Aircraft Inc. PA-31-325 ([TCDS A20SO](https://openairdocs.org/tcds/A20SO)) - Piper Aircraft Inc. PA-31-350 ([TCDS A20SO](https://openairdocs.org/tcds/A20SO)) - Piper Aircraft Inc. PA-31P ([TCDS A8EA](https://openairdocs.org/tcds/A8EA)) - Piper Aircraft Inc. PA-31P-350 ([TCDS A8EA](https://openairdocs.org/tcds/A8EA)) - Piper Aircraft Inc. PA-32-300 ([TCDS A3SO](https://openairdocs.org/tcds/A3SO)) - Piper Aircraft Inc. PA-32-301 ([TCDS A3SO](https://openairdocs.org/tcds/A3SO)) - Piper Aircraft Inc. PA-32-301T ([TCDS A3SO](https://openairdocs.org/tcds/A3SO)) - Piper Aircraft Inc. PA-32R-300 ([TCDS A3SO](https://openairdocs.org/tcds/A3SO)) - Piper Aircraft Inc. PA-32R-301 (HP) ([TCDS A3SO](https://openairdocs.org/tcds/A3SO)) - Piper Aircraft Inc. PA-32R-301 (SP) ([TCDS A3SO](https://openairdocs.org/tcds/A3SO)) - Piper Aircraft Inc. PA-32R-301T ([TCDS A3SO](https://openairdocs.org/tcds/A3SO)) - Piper Aircraft Inc. PA-32RT-300 ([TCDS A3SO](https://openairdocs.org/tcds/A3SO)) - Piper Aircraft Inc. PA-32RT-300T ([TCDS A3SO](https://openairdocs.org/tcds/A3SO)) - Piper Aircraft Inc. PA-34-200T ([TCDS A7SO](https://openairdocs.org/tcds/A7SO)) - Piper Aircraft Inc. PA-34-220T ([TCDS A7SO](https://openairdocs.org/tcds/A7SO)) - Piper Aircraft Inc. PA-46-310P ([TCDS A25SO](https://openairdocs.org/tcds/A25SO)) - Piper Aircraft Inc. PA-46-350P ([TCDS A25SO](https://openairdocs.org/tcds/A25SO)) ## What the certificate says This is OCR from the scanned FAA certificate. OCR can misread letters and numbers. United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate FAA Project Number SA6479SC-A (GGR) Number: SA09524SC This certificate issued to: Steinbach & Associates, Inc. 2224 Carolinda Drive Waco, TX 76710 Lurt * of the * Regulutions. Original Product Type Certificate Sinter: [* See attached FAA Approved Model List Make: (AML) No.: AML09524-4 for list of approved models and applicable airworthiness Model: regulations.] Rescriplin c/ Type Fraige Chug: Conversion of existing Piper Air Conditioning Systems from using R12 to using R134a refrigerant on the aircraft models listed in AML Number AML09524-4 in accordance with Steinbach and Associates Top Drawing List Number 98030000, Revision: D, Dated: September 06, 2000, or later FAA approved revision. Limitations un Cowlitics Compatibility of this design change with previously approved modifications must be determined by the installer. If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission. This modification is eligible only on models with a Piper Aircraft Company factory installed air conditioner. I, September 12, 1999 Rev. 2, February 15, 2000 And c/seman. December 17, 1998 Rev. 3, March 28, 2000 Rev. 4, March 26, 2002 FEDERAL AVIATION By Direction of the Administrator Signature) S. Frances Cox TOMNISTRATO Manager. Special Certification Office Southwest Region (Title) Page 1 of 2 With FAR 21 17. TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) (Number and street) (City, State, and RIP code ) from (Name of grantor) (Print or type) (Address of grantor) (Number and street) (City, State, and ZIP code) Extent of Authority (if licensing agreement): - Date of Transfer: Signature of grantor (In ink):. FAA APPROVED MODEL LIST (AML) AML Number: AML09524-4 Sheet 1 of 2 STC Number: SA09524SC Issued to: Steinbach & Associates, Inc Date of Issuance: December 17, 1998 2224 Carolina Drive Revision Number: 4 Waco, Texas 76710 Date of Revision: March 26, 2002 Item Aircraft Make Aircraft Model Original Type Regulation/ Certificate No. Part 1 The New Piper Aircraft, Inc PA-28-140 2A13 CAR 3 2 The New Piper Aircraft, Inc PA-28-161 2A13 CAR 3 З The New Piper Aircraft, Inc PA-28-180 2A13 CAR 3 4 The New Piper Aircraft, Inc PA-28-181 2A13 CAR 3 5 The New Piper Aircraft, Inc PA-28-2011 2A13 CAR 3 The New Piper Aircraft, Inc PA-28-236 2A13 CAR 3 7 The New Piper Aircraft, Inc PA-28R-200 2A13 CAR 3 8 The New Piper Aircraft, Inc PA-28R-201 2A13 CAR 3 9 The New Piper Aircraft, Inc PA-28R-201T 2A13 CAR 3 10 The New Piper Aircraft, Inc PA-28RT-201 2A13 CAR 3 11 The New Piper Aircraft, Inc PA-28RT-201T 2A13 CAR 3 12 The New Piper Aircraft, Inc PA-32-300 A3SO CAR 3 13 The New Piper Aircraft, Inc PA-32-301 A3SO CAR 3 14 The New Piper Aircraft, Inc PA-32-301T A3SO CAR 3 15 The New Piper Aircraft, Inc PA-32R-300 A3SO CAR 3 16 The New Piper Aircraft, Inc PA-32R-301 (SP) A3SO CAR 3 17 The New Piper Aircraft, Inc PA-32R-301 (HP) A3SO CAR 3 18 The New Piper Aircraft, Inc PA-32R-301T A3SO CAR 3 19 The New Piper Aircraft, Inc PA-32RT-300 A3SO CAR 3 20 The New Piper Aircraft, Inc PA-32RT-300T A3SO CAR 3 21 The New Piper Aircraft, Inc PA-46-310P A25SO FAR 23 22 The New Piper Aircraft, Inc PA-46-350P A25SO FAR 23 FAA Approved: Make: March 20,2002 FAA APPROVED MODEL LIST (AML) AML Number: AML09524-4 Sheet 2 of 2 STC Number: SA09524SC Issued to: Steinbach & Associates, inc Date of Issuance: December 17, 1998 2224 Carolina Drive Revision Number: 4 Waco, Texas 76710 Date of Revision: March 26, 2002 Item Aircraft Make Aircraft Model Original Type Regulation/ Certificate Part Number 23 The New Piper PA-31-300 A20SO CAR 3 Aircraft, inc Aircraft Serial Numbers 31-660, 31-712 thru 31-900, 31-7300901 and up 24 The New Piper PA-31-325 A20SO CAR 3 Aircraft, Inc Aircraft Serial Numbers 31-7400990 and up 25 The New Piper PA-31-350 A20SO CAR 3 Aircraft, Inc Aircraft Serial Numbers 31-5001 thru 31-5003, 31-7305005 and up 26 The New Piper PA-31P A8EA FAR 23 Aircraft, Inc Aircraft Serial Numbers: 31P-3 through 31P-109, 31P-7300110 through 31P-7730012 27 The New Piper PA-31P-350 A8EA FAR 23 Aircraft, Inc Aircraft Serial Numbers: 31-8414001 through 31P-8414050 28 The New Piper PA-34-200T A7SO FAR 23 Aircraft, Inc Aircraft Serial Numbers: 34-7970001 through 34-8170092 29 The New Piper PA-34-220T A7SO FAR 23 Aircraft, Inc Aircraft Serial Numbers: 34-8133001 through 34-8633031, 3433001 through 3433172, 3447001 through 3447029, 3448001 through 3448037 FAA Approved: Make: March 20,2002 ## Every issue (1) - March 26, 2002: Amended, Current. [certificate](https://openairdocs.org/files/sha256/a9/13/a91373d5cc20883003f38476df54bce5ccb1daf72edc65ff22d3209a2600bc61) --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.